IT i I.TI rrTTTi SJL-JI"TTZI I RADFORD' sfSssiv H& Complete Guide of Architect's Office e-Tracing Detailing Lettering Rendering- Designing' I Classic Orders of Architecture r .i toa&i Radford's Architectural Drawing Complete Guide to Work o Architect's Office Drawing to Scale Tracing Detailing Lettering Rendering Designing Classic Orders of Architecture A COMPLETE AND THOEOUGH COUESE, CLEAELY WEITTEN AND BEAUTIFULLY ILLUSTBATED; SUITED ALIKE TO INDIVIDUAL STUDY AND CLASS INSTEUCTION Prepared under the Supervision of WILLIAM A. RADPORD President of the Radford Architectural Company, Editor-in-Chief of "Rad- ford's Cyclopedia of Construction," "American Carpenter and Build- er," "Radford's Details of Building Construction," etc. Assisted by LOEING H. PEOVINE, B. S. Instructor in Architectural Engineering, Department of Architecture, University of Illinois and ALFEED S. JOHNSON, A.M., Ph.D. Editor in Charge Cyclopedia Department Radford Architectural Company A Companion Volume to BRADFORD'S MECHANICAL DRAWING" THE RADFORD ARCHITECTURAL COMPANY Chicago, 111. COPYRIGHT, 1912 BY THE EADFORD ARCHITECTURAL COMPANY IV/V Preface CUFOft*iA All that stands between thousands of practical and builders in this country and a greater success is the lack of facility in architectural drafting. Ambitious men, both young and old, are turning to architecture the draw- ing of plans as their big opportunity for advancement. "Radford's Architectural Drafting" has been specially written and illustrated to help these men to reach this goal. It is practical, clear, direct. It goes straight to the point, telling the learner what he wants and needs to know with- out fuss, flurry, or theoretical nonsense. It is complete. It is arranged in logical order for satisfactory individual study. The importance of neat drafting and lettering on plans can not be overestimated. Architects rate their draftsmen according to the way they do their work ; and the architects are themselves judged by the way their drawings go out. Careless drafting and amateurish lettering have more than once lost for an otherwise good man a desirable job or a nice commission. This book, together with its companion volume, "Rad- f ord 's Mechanical Drawing, ' ' has been prepared to furnish ambitious men whether apprentices or experienced build- ers, students in school or young draftsmen in offices a practical, thorough, and satisfactory course in draftsman- ship, drawing, sketching, rendering, and designing. One who is already in the work can well begin with this Volume 2, the more advanced drafting and designing work as done in the best architects' offices. Others should start with Volume 1 and master the foundation principles of mechani- cal drafting, the use of the drafting instruments, etc., before proceeding with the architectural course. o Table of Contents Volume I MECHANICAL DRAFTING PAGE 1 The Draftsman's Outfit Instruments and Materials Testing Instruments Use of Instruments Drawing to Scale Pencil- ing and Inking Geometrical Constructions Approximations Projection (Orthographic, Oblique, Isometric, etc.) Planes of Projection Ground Line Quadrants Plans and Elevations Direction of Oblique Lines ; Slope Profile Plane Auxiliary Planes of Projection Intersection and Development Non- Developable Figures Intersection of Planes Of Plane and Curved Surface Of Plane and Cylinder Of Solids Visibility of Lines of Intersection Development of Prism, Pyramid, etc. Intersection of Cylinder and Prism Of Curved Surfaces Approximate Developments Problems in Drafting for Con- struction (Finding Miters, Developing Mouldings, etc.) Picto- rial Drawing Perspective Projection Isometric Drawing Non-Isometric Lines Isometrics of Cylinders, Cones, etc. Oblique Projection. WORKING DRAWINGS PAGE 145 Qualifications of the Draftsman Detail Drawings Assembly Drawings Preliminary Sketches Requirements of Good Draw- ings Explanatory Notes Conventional Lines Shade Lines Blue-Prints Tracing Dimensioning Extension Lines Over- All Dimensions Finished Surfaces Sections Cross-Hatching Conventional Representations of Materials Lettering of Drawings Spacing Drawings for Building Construction Working Plans (Basement, First Floor, etc.) Structural Drafting Solid and Built-Up Members Rivets and Bolts Reading Drawings. INDEX PAGE 186A Table of Contents Volume II ARCHITECTURAL DRAFTING .... PAGE 187 General Requirements Negotiating with Owner Scale of Drawings Changes in Plans Preliminary Sketches Per- spective Sketches Competition Drawings Working Drawings (General and Detail) Scale and Full-Sized Drawings The Plan Layout of Rooms, etc. The Elevation Use of the Orders Characteristics of Types of Buildings (Residence, Library, Schoolhouse, Office Building, Warehouse, etc.) Colonial Architecture General Composition Treatment of Elevations Location of Openings Scale Details The Section Full-Sizing Reproducing Drawings (Blue-Printing, White- Printing, Hectograph Process, etc.) Tracing Cloth Architec- tural Forms Conventional Symbols (Drain and Sewer Pipe, Lighting, Heating, etc.) Sizes of Furniture Materials of Construction Shades and Shadows Direction of Light Shadows of Points, Lines, etc. Details of Construction Cornice Floors Lath and Plaster Flashing and Counter- Flashing Doors Porches Fireplaces Stairs Windows, etc. SKETCHING; PEN AND INK RENDERING; WASH DRAWING PAGE 298 Principles of Sketching Pencils and Paper Method Laying Out a Drawing Rendering (in Pencil, in Ink, in Water-Color) Wash Drawings. ORDERS OF ARCHITECTURE; ARCHITECTURAL LETTERING . . .... PAGE 317 Tuscan, Doric, Ionic, Corinthian, and Composite Orders Entablature, Column, Pedestal Architrave, Frieze, Cornice Column Details Units of Measurement Classic Mouldings Forms and Proportions of Letters Spacing Titles and Inscriptions Types of Letters for Various Uses. INDEX . . PAGE 343 SSSg^.^-pii f JA ' .la'^Si >0-t!- itbrSi : :: "^u. .-^r^ii,^** f ? . Vi * /I. SSS^.^-C- ^-:^S ^ <>s :^x. Architectural Drafting It would be a commonplace to insist on the advantage to all property owners and to all classes of workers engaged in building construc- tion, of a knowledge of the principles of archi- tectural design. It is equally important that they should know how to read and interpret intelligently the working drawings that are the guides to the details of actual construction, and, if need be, to make these drawings themselves. GENERAL REQUIREMENTS The first impression given by a set of draw- ings applies as well in Architecture as in any other line of work. So often we hear it said, "It certainly makes a good impression." Apply- ing this same principle to architecture, let us consider a few general requirements in order to finish a set of plans in fhe best manner, and also have them appeal to a person not familiar with architectural work. The drawings should be complete in every respect. They should be fully dimensioned with plain figures; all material plainly marked by arrows; each room named, for the sake of reference; and the various parts of the work 187 188 ARCHITECTUKAL DRAFTING carefully explained by explanatory notes. Make these notes clear, concise, and with no mistaking the part to which they refer. While the title of each page may be lettered in a more elaborate letter, make all explanatory notes plainly let- tered. Drawings in general have but few notes of explanation. Make it a rule to explain fully all the questionable portions of a building. This applies to the plans, as well as the eleva- tions, sections, and details. In the arrange- ment of notes, if there are those that do not refer to any particular portion of the drawing, place these notes over the sheet, to make it well balanced. Do not try to crowd them into one corner of the sheet or along one edge. Place them where they will make the drawing as a whole look the best. Architectural drawings should have some character to them; the lines should be firm and straight, making them a full, even thickness. Very often good drawings are spoiled by the lines being very poor and also too faint. Use a good, heavy line, and make it look as if it was there for a purpose. One way in which a drawing can be made attractive and "snappy," as you will hear archi- tects say, is to overrun all corners and inter- sections of lines, slightly. In mechanical draft- ing other than the work of the architects, it is always required to stop the lines at the corners, making the drawing exact and very mechan- ical in appearance. The architect, however, is ARCHITECTUKAL DRAFTING 189 Tig. 1. Part Plan, Showing Method of Overrunning Corners. 190 ARCHITECTURAL DRAFTING allowed some liberties in his work. He will resort to methods, to improve the looks of his drawings, which would not be permissible in other work. Referring to Fig. 1, it will be seen that the corners and intersections are emphasized by the overrunning of the lines. This does not mean long lines past the corners, but just enough to show a sharp intersection. A little practice will soon enable a draftsman to do this work skil- fully, and once this method is adopted it will be used on all future work, as there is no com- parison in the general attractive appearance of two drawings, in one of which this method is used, and in the other the strict mechanical method is adhered to. The actual time con- sumed in getting out a drawing is less with the method described than with the true mechan- ical drawing, in which it is necessary to start and stop at exactly a certain point. In mechan- ical drawing, it is frequently necessary, after two lines at an angle have been drawn, to go over the first line in order to continue it a short distance to the exact corner. Very often, a few minutes spent on careful lettering, indicating materials, and an additional explanatory note, will be the winning feature of a set of drawings. Too much emphasis cannot be placed upon always being on time, whether in office work or in getting out drawings. When a time is set for the completion of any drawing, or a time ARCHITECTUKAL DKAFTING 191 of meeting arranged, have your work ready at that time, and keep your appointment exactly as arranged. Before setting a time of comple- tion, be sure you are giving yourself time to do the work completely, and then see to it that your work is ready at that time. The architect's services usually consist in preparing the necessary studies or preliminary sketches, working drawings, specifications, and large-scale and full-size details, together with a general supervision of the work. For this service, there is usually a price based upon a minimum percentage of the completed work. This percentage varies in different States and localities, from S 1 /^ to 7 per cent. As the work progresses, or different sets of drawings are completed, payments are made. If we consider the architect receiving five per cent commission, one-fifth the entire fee is due upon the com- pletion of the preliminary sketches, two-fifths upon the completion of the working drawings and specifications, the balance being paid as the work progresses. This percentage is based on the total cost of the buildings. These prices are those adopted by the Chicago Architects' Busi- ness Association. Should work on the drawings be abandoned, a charge should be made for services for the amount of work done. This will give an idea as to the general prices charged, and the usual times of payment. It does not pay to do work at a small percent- age, for the work on the drawings and specifi- 192 ARCHITECTURAL DRAFTING cations will necessarily have to be inferior and incomplete. The scales at which drawings are usually made are % in., % in., y 2 in., % in., % in., 1% in., and 3 in., to the foot. These are convenient for all parties concerned. We see that by using the first three scales we can use the regular divisions on a rule, without having an architect's scale. The last scales are also convenient for the same reason. Take, for instance, a detail drawn at 3-inch scale; then we see that 14 i^h equals one inch, and an ordinary rule can be used to advantage. On the actual construction work, the foreman always uses his two-foot rule for scaling the drawings; and if the above scales are used, they are easily read from an ordinary rule. A complete set of drawings should include a survey, or City Engineer's plan, of the lot, on which the outline of the building is marked; a foundation plan; a plan for each floor; a roof plan; an elevation of each side of the house; all necessary %-inch scale detail sections; all necessary elevations of interior finish; large- scale details of the window-frames and sash and interior trim; and any other details of unusual construction. After the contract is let, then get out full-sized details. Should any changes be necessary after the drawings are completed, secure the owner's written order for such changes. If everything AKCHITECTUKAL DEAFTING 193 is in writing, there can be no cause for dispute, especially in the matter of changes. METHOD OF GETTING OUT DRAWINGS The prospective client, by appointment or otherwise, meets the architect in his office. The general scheme is talked over, and the various subjects are discussed, such as the lot, location, size, etc.; the amount to be put into the build- ing, or the cost; the time of beginning and completion; the owner's general idea of the requirements; and the architect's fee. A time is set for the getting-out of the preliminary sketches. All of this information is arranged, and entered in a book for future reference. At the appointed time, the client appears again, and the preliminary sketches are talked over, changed, and revised, and any new infor- mation is noted. After another visit or two by the client, the sketches are accepted. The working drawings are begun, usually made at %-inch or 14-inch scale. These drawings are carefully inspected by the head draftsman, num- bered, dated, and signed. These drawings are then reproduced by some method usually blue-printed bound, and sent to the contractors for bids or proposals on the work. After the contract has been let, the full- sized drawings are made. 194 ARCHITECTURAL DRAFTING ARCHITECTURAL DRAWINGS Architectural drawings may be classified as follows : -p ,. f Sketches J Perspective Sketches Drawings [competition Drawings Working Drawings fScaleDetails Detail [Full-Size Details Preliminary Drawings Preliminary drawings are small studies of the proposed new work, freehand or otherwise, at a small scale, finished in an attractive man- ner. There are three classes of preliminary drawings namely, Sketches, Perspectives, and Competitive Sketches. Preliminary Sketches. In architectural work, no matter whether you are an architect dealing with an owner or client, or a draftsman getting out working drawings, it is always better to make a preliminary sketch of the arrangement, detail, etc., as it saves time and much erasing and changing on the scale drawings. By pre- liminary sketches we mean the sketching free- hand on paper to show exactly just how you will draw it with the T-square and triangles. Let us consider the architect dealing with a client. The first thing is an arrangement of the 195 rooms, or the plan is first studied. For this work, tracing paper will be found very easy to work with and very convenient. The use of a sheet of co-ordinate paper under the tracing paper will be found very convenient. The squares on the co-ordinate paper will serve as a guide in drawing straight lines; and also the squares as ruled on this paper can be used as a scale one square representing one unit, as a foot or an inch. Very often the owner of the proposed new building will have some scheme or arrangement of rooms that he would like; therefore, try to have him give you a rough sketch of such arrangement; even a drawing with single lines for walls, and cross-lines indicating windows, will be very helpful. A drawing as shown in Fig. 2 is just what you want from your client. Having received either this sketch or a list of the requirements, you are ready to start your preliminary sketches. Spread down the co-ordi- nate paper, and over this lay a sheet of tracing paper. These may be held down with thumb- tacks or weights of some sort placed on opposite ends. Assume each square of the paper to represent some unit, as one inch, or one foot, or ten feet; and lay out first the property lines. Then commence on the building proper. Make no attempt at trying to make exact lines; let these sketches be more of freehand drawing. Mark off the approximate sizes of rooms by rectangles, and try the various arrangements, 196 AECHITECTUEAL DRAFTING Fig. 2. A Single-Line Sketch Submitted, from which the Archi- tect Gets an Idea of the Arrangement. AECHITECTUEAL DEAFPING 197 endeavoring to secure an ideal arrangement. Make no attempt at trying to show double lines for wall lines; let it be a free and easy sketch of single lines. Don't be satisfied with one arrangement of the given requirements. Over this first sketch lay another sheet of tracing paper. Perhaps you can use some parts of the first sketch, and revise other parts. Study your problem, and be fully acquainted with the requirements. After completing this second arrangement, try to imagine difficulties that this arrangement would present, and how they might be remedied. Make another sketch; don't be satisfied until you have made half a dozen different sketches. After having considered all the possible arrange- ments of the requirements, then take the sketches, spread them all out before you, and see if you have solved the problem. Now commence with a clean sheet of tracing paper over the co-ordinate paper, and make fin- ished sketches; that is, lay out the wall lines carefully, put in the windows and doors, letter the rooms, and get these drawings into shape to submit them to the client. Make them so that he will understand clearly the arrangement you have sketched. For filling in the walls to indicate the walls and the windows, it will help the appearance to color the walls on the back side of the paper with the pencil. This gives a subdued color to 198 AECHITECTUEAL DRAFTING the walls, and increases the clearness of the plan or drawing. Prepare small sketches of possible treatment of the elevations, and submit these also with the plan. These will now do for you to submit to your client (see Fig. 3). Be very sure that you have studied the problem thoroughly, and be prepared to answer all questions your client will probably ask. The client will very soon form an opinion of your ability by the way you handle his work. When these first preliminary sketches are ready, notify your client, unless you have had a previous time of meeting set. If this be the case, then be sure to have your work ready for him at the appointed time. Remember, your client is a busy business man, a man who is always used to keeping his appointments, and expects everyone to keep theirs. After these first sketches have been sub- mitted, and carefully gone over, make an ap- pointment for the next meeting, at which time you will have the final preliminary sketches ready. There will always be changes and addi- tions on these sketches; and the fewer times the client has to be consulted, the better im- pression you will make. Therefore, after this first meeting, understand thoroughly your client's objections and changes, ask questions to make sure you do understand, and go back to your office determined to make the revisions .^V; ARCHITECTURAL DRAFTING 199 Pig. 3. First Sketch Beady to Submit to Owner. Original drawn at scale of %" = I'-O", all freehand and drawn on co-ordinate paper. 200 ARCHITECTURAL DRAFTING and that the next sketches submitted will be approved. For the next sketches, it is very often more satisfactory to use the T-square and triangles, and a scale, and make small, sketchy drawings. Tack down your tracing paper, and lay out to a small scale the general arrangement (Fig. 4). Every little detail need not be attempted on these sketches; but make them straight-line drawings, using more care in the finishing of such drawings. Make all plans necessary, show- ing the arrangement on all floors; also an eleva- tion. Make them attractive, and letter com- pletely. The next meeting with your client should be the last one so far as the sketches are concerned. Have him look over all your sketches closely; go over them with him, pointing out the changes, telling him the advantages to be gained by this or that arrangement, and convince him that you know your business. He will finally see things your way, and he will tell you to go ahead with the work. If you see he is satisfied with the arrangement as shown him on the sketches, secure if possible his initials of approval (in ink) on each sheet. Don't ask him to "sign these sketches," as if you were an owner and he a lease-holder. If there is anything a busi- ness man hesitates to do, it is to sign his name to a paper of any kind. Use a little tact, tell him that you want him to be perfectly satisfied; and in order for him to be sure he is going to ARCHITECTURAL DRAFTING 201 tf/TCHZN 12.' DINING QOOM 17'* 15' n~oop PLAN Fig. 4. Final Preliminary Drawing. Drawn with T-square and triangles to scale. 202 AECHITECTURAL DRAFTING get the arrangement that suited him, he can O. K. the sketches that he approves, and thereby have a check on the working drawings so that they will be sure to be what he wants. On the other hand, you are protecting yourself by this signature. Very often your client may forget that he ordered this or that change in your sketches; he might in some cases refuse to pay you your agreed commission, because you did not do this or that thing which he ordered. If you have his signature on the sketches, and you have followed these sketches exactly, you will not fear the outcome should the case go to law for settlement. The same general method of procedure will apply if you are a draftsman getting out scale details. Get out freehand sketches on tracing paper, several of them; decide which is the best method before making the regular scale details. If you are a new man in an office, submit your best sketch for the construction to the head draftsman, and let him see that you are studying your work, endeavoring to get the best method. Learn to make your sketches clear and well executed. This comes only by practice in sketching. Much time and money can be saved on the cost of getting out the drawings if only you learn to make these sketches well and complete, so that when you are ready to make the final drawings, you can start and know definitely just what they will include. AECHITECTURAL DRAFTING 303 It will be found very convenient to use a soft pencil. Never use a hard pencil on your drawings, no matter whether they are the sketches or scale drawings. It is very necessary for a draftsman to know how to make preliminary sketches. Very often a new draftsman's ability along architectural lines is tested by these preliminary sketches, their make-up, the method of getting them out, and the time taken to get them ready. If a firm finds out that you can make attractive and yet practical preliminary sketches, you will soon find out that you will not be required to serve your time at tracing drawings or details, as most draftsmen have to do upon entering a new office. Perspective Sketches. A perspective is a representation of a building or object as it ap- pears from a fixed point. These sketches are usu- ally drawn at a small scale, either freehand or mechanically. The lines should be lightly drawn or sketched, as strong lines will be objection- able in the rendering or coloring of the drawing. The rendering may be in pencil, ink, water- color, or sometimes in crayon, and prepared upon almost any kind of paper (see Fig. 5). Competition Drawings. These are more or less preliminary sketches. As a general thing it is only occasionally that a firm enters a com- petition; but if it should, let the draftsman show that he knows how to prepare such drawings. By competition drawings, we mean drawings that are submitted in a competition. The firms 204 ARCHITECTURAL DRAFTING may be invited to submit competition designs, in which case it is called a closed competition; or the requirements may be published in some Fig. 5. A Freehand Perspective Sketch. architectural paper, and anyone may submit drawings, in which case it is called an open competition. The drawings submitted for the open competition are more of the nature of sketches than in the closed competition. Usu- ally, in the closed competition, each firm invited to submit drawings will be paid for their work even though unsuccessful in being the winner. There is generally a sum paid for such drawings. Thus, in a closed competition, an architect is paid for his time and can afford to get out a better class of drawings. These are usually drawn on regular drawing paper, carefully laid out to scale, and all inked in. The sheet is then water-colored and made as attractive as possible AECHITECTUEAL DRAFTING 205 in this manner. In other words, these drawings are laid out as carefully, except at a much smaller scale, as working drawings; only the important dimensions are put on. In the open competition, the work is usually done on tracing paper. The plans are laid out at a small scale, made very sketchy, and the pencil is allowed much freedom in the lines. With this sort of drawing, it is necessary to study the requirements, make sketches, and decide for yourself which answers the require- ments the best. There will be no client to criti- cise your work, but you will have to do this for yourself and submit your sketches as final sketches to the client. The first-floor plan is laid out, and the surrounding premises are also laid out. Trees and shrubbery also are put on; and walks, drives, and gardens are shown. Since this is on tracing paper, very little water-color is used. Use the pencil to show everything, and upon your ability to use your pencil and a soft one, too will depend much of the success of your drawings. After these sketches have been made, they are lettered and titled attrac- tively, and then mounted on cardboard. This mounting is usually done by pasting the corners only, and not attempting to paste the whole drawing. Ordinarily, a border of some sort is placed around the card, and any other finishing touches that will make the drawing attract attention are added. Thus we see that competi- 206 AECHITECTURAL DRAFTING tion drawings are only preliminary sketches finished a little better than for the ordinary class of work. Should you be successful in the competition, the method of getting out the working drawings, scale details, and other drawings, is the same as for any other work. The chances are that you will rarely have a chance to get out competition drawings; but should the opportunity come, grasp it, and do your best. Working Drawings By working drawings we mean drawings complete in every respect, with dimensions, sizes of rooms, etc. In other words, they are the drawings giving all the necessary informa- tion to completely build the structure as drawn. This division of drawings may be divided into general and detail drawings, the latter being subdivided into scale and full-size. The architect who is mindful of his client's welfare will furnish a complete set of drawings, The clearest, simplest, and most exact working drawing is the best. Some architects feel that working drawings do not require the best work. The making of good, clear, complete drawings cannot be emphasized too strongly. The Plan. In the plan we see an arrange- ment of the rooms for the different floors that approaches the ideal as nearly as possible. The plan should present the conveniences of arrange- ARCHITECTURAL DRAFTING 207 ment. In the following description we shall- consider the plan of a residence, as it will clearly set forth the logical arrangement of parts. The description, as noted, will be limited to residence work, since this class of building is likely to afford a student his first opportunity for inde- pendent, original work. The same reasoning could be extended and applied to any class of building. Usually the first-floor plan is worked out first, as it is the most important, since the greater part of the day is spent in this portion of the house. The upper floors, being used almost entirely for bed- rooms or minor rooms, can be worked out to conform to the outline of the first-floor plan. The basement usually is devoted to the heating apparatus and its accessories, the laundry, store- rooms, and such. Therefore, the first-floor plan will govern the outline of the basement walls; and the basement rooms will be arranged inside the basement walls, as determined by the first- floor plan. In residence work we see two classifica- tions the city house and the country house. The city house gets its sunlight from the front and rear, being usually built in between adjacent houses where there is no chance of sunlight from the sides. A country house gets its light from all four sides; that is, it is built in a part of town where the lots are of sufficient width to give plenty of light and air. The city house 208 ARCHITECTUBAL DEAFTING usually has a lot 20 to 30 feet wide, and it is a question of the best arrangement for light as well as comfort. The country house usually has a lot 50 to 60 feet wide; and it is not un- common to see a house built on two lots, giving all the more room. Let us, therefore, consider the first-floor plan. Upon entering a residence, we usually step into a vestibule. This room, while small and inferior, yet is one of the most important rooms in the house. The vestibule should be well lighted, which can be done by means of glass in the front door, by side lights along the sides of the door, by a transom, and by glass in the door leading into the living room. The vestibule should be provided if possible with a closet (it need not be large), in which a person's every- day hats and wraps may be kept, also all rub- bers and umbrellas. It is very evident that this will be the first need upon entering a home a place to dispose of one 's coat, hat, etc., before entering the home proper. It is all the more urgent in a mild, rainy climate. In case a closet cannot be provided, there should be a seat with a hiriged cover, and a stand for umbrellas, with the usual furniture for holding the coats and hats. This room, as already said, need not be large, as usually not more than two people are ever in the room at the same time. In some residences there is no vestibule, but it is almost a necessity in the best class of work. ARCHITECTURAL DRAFTING 209 From the vestibule, we now come to the reception room. This room is usually large, with but little furniture. The main stairway leads up from one side of this room and is made quite ornamental. The other side is usually open, or separated by columns or grill-work from the living room. At one end of the reception room, one frequently sees a fireplace, more or less elaborate. Turning now to the living room, let us. study the requirements of this room. Here is the room the family will spend most of the time in. Often one end is set apart for a nook or library. There should be a large open room with a fire- place of brick or stone or tile or other suitable material, ornamental or plain, or the mantel may be of wood. Provide plenty of windows, especially on the sunny side of the house. Nothing will dispel gloomy feelings or worry quicker than plenty of sunlight and fresh air. For the nook, if there is one, build in shelves for books, put in a seat with a hinged cover, also a fireplace. In this room, the quiet hours of the day are spent; therefore make it comfortable and convenient. A very convenient arrangement is to place a seat on one side, with bookshelves on the other; also a few shelves at one end or above the seat, for current books or periodicals. Provide a plate-rail around this nook, for the placing of china, ornaments, or bric-a-brac. Opening from the living room we usually 210 ARCHITECTURAL DRAFTING find the dining room, separated by sliding doors. This room should be more or less private, but by means of double doors it may be thrown open when desired. In the dining room, build in a sideboard, and provide a small shelf or two for pretty china, vases, or ornaments. Back of these shelves a mirror is usually set. A French beveled-plate mirror is used in the best work. There should be the " counter," or the main shelf, projecting from two to six inches beyond the shelves and drawers below. Below the counter, provide a long drawer that will take a table-cloth as folded when laundered. A drawer for silver is also directly under the counter. Below this, there may be either drawers for other table linen, or shelves enclosed by glass doors for displaying china or cut glass. This sideboard should be made an attractive feature of the room. There might also be an- other case of shelves and drawers for additional table linen and dishes. There should be a plate- rail around the room, on which to hang cups or to place china or ornaments. This room should have, if possible, an east exposure, since the first meal of the day should be served in a bright, cheery atmosphere. It will be necessary to have a serving pantry between the dining room and kitchen. There should be double-acting doors. This greatly facilitates the carrying of dishes from one room to another. In this pantry should be a wide shelf or counter which will be used in the prep- ARCHITECTURAL DRAFTING 211 aration of the meal. Above are shelves with sliding doors, and below are drawers for differ- ent articles of food. Provide always plenty of drawers and shelf room. In a small room, sliding doors will be found much more con- venient than swing doors, as they are much more easily handled and take up much less room in opening and closing. If possible, there should be built in this room a refrigerator. If not here, place it in the kitchen. This refrigerator should be provided with an outside door through which the ice may be replenished from the outside, thereby doing away with the ice man coming in at all hours and in bad weather tracking mud into the house. The kitchen, while in the rear of the house, requires careful thought. The housekeeper usually spends the greater part of the morning here; therefore give this room, if possible, an east exposure. Make the windows low enough so that a person sitting can see out. For the kitchen table and sink, have a window near. This will not only be an aid to better light, but will give the housekeeper a chance to see out through the window. Place a sink as near the pantry and dining room as possible; also, as mentioned above, so as to be near outside light. In the kitchen will be found a cooking range or gas stove, or both. Place these, if possible, where they will get a cross-draft; in other words, place them between a door and a window, or between windows, so that the odor during 212 AKCHITECTUKAL DRAFTING the preparation of a meal will be carried away. Of course there is necessary a flue for the range, and there should also be one for the gas stove to carry off the odors of the gas and the ovens. The kitchen table should be convenient to the stoves. There should be built-in shelves and cupboards for the kitchen-ware and the pots and kettles. Either in the serving pantry or some- where in the kitchen, provide a tilting bin for the flour. This can be very easily done by making the bin pivoted at the outside corners, to allow the bin to tilt out. Hooks or pivots for swinging a barrel of sugar would also be a great convenience. Do not make the kitchen large; make it small, compact, and convenient, to save the housekeeper all unnecessary steps. There will also be necessary rear stairs, one to the basement and one to the attic. These stairs should be about 3 feet 6 inches wide, as boxes, furniture, etc., are all taken up or down these stairs ; so do not make them too small. Having decided upon a satisfactory arrange- ment of the lower floor, we now consider the upper floors. These are devoted to the bed- rooms and other rooms where more privacy is desired, such as the sewing room, the study, or the nursery. As has been said, the first-floor plan determines the outline of the second-floor plan. The number of bedrooms is determined by the size of the family. There will be required also a guest room and a servant's room. As to the requirements of a bedroom, make ARCHITECTURAL DRAFTING 213 ample-sized rooms. The usual articles of furni- ture will be the bed, a dresser, a chiffonier, a small table, and sometimes a writing desk or an additional table of some sort. Provide plenty of closet room, with a window, if possible, in it. In the closet should be a number of shelves, a hook strip around the three sides. The closet should be finished, so far as plaster and inside finish are concerned, as well as the other rooms. The question of closets is important; therefore, consider them an essential part of every house. On the second floor provide a bathroom con- venient to all rooms, yet far enough away from the main hall to be private. The bathroom is usually crowded into any remaining space that may be left after bedrooms have been consid- c o Fig. 6. Layout of a Very Small Bathroom. ered. This, however, is not a satisfactory way of doing, since the bathroom should be as con- venient in arrangement as any other room. In the bathroom the usual necessary fixtures are a bathtub, a lavatory or wash-bowl, and a water- closet. In more expensive homes a foot-bath and a sitz bath are provided; sometimes a shower bath also. There should be ample room for the placing of these fixtures, with plenty of 214 ARCHITECTURAL DRAFTING room around them. In Fig. 6 is shown the smallest room that can accommodate the neces- sary fixtures. While this will serve in the cheapest houses, yet the arrangements shown in Figs. 7 and 8 are much better. Should more fixtures be added, the room Fig. 7. Fig. 8. Two Plans of Commodious Bathrooms. should also be made larger to accommodate them. There will also be required a medicine chest, usually built into the wall directly above the lavatory, or these can be bought at furniture stores, ready to hang on the wall. There should always be a mirror in the door of this chest. Provide a built-in closet with swing doors for the upper half and drawers for the lower half. The finish of this room, as well as the shape of the mouldings, should be such that the dust will not easily settle on them, and that they may be frequently washed to remove any accumulation of dust. In most homes, the two main floors are all that are required for living rooms. The attic is usually low, and can be fitted up with store- n\ \ $: u ARCHITECTURAL DRAFTING 215 rooms. The construction of the roof should be such that soot and dirt cannot come through. This is ordinarily accomplished by using build- ing paper under the shingles or roof covering. There should be an attic stairs, convenient and easy of ascent. For the basement, the furnace will require a part of the space, together with a coal room. This coal room should be built dust-tight, and have a window convenient to a driveway for the unloading of coal. The size of coal room for different classes of coal, is indicated below under the heading "Dimensions." There should be a laundry with laundry tubs, or a room where the family washing may be done. The remaining space in the basement may be divided to suit the owner's wishes; sometimes a work-room, a store-room, a drying room, a shop, may be placed here. It is very essential to have a concrete floor over the entire basement. This will do away with a great deal of dirt and dust that otherwise would be carried from the basement all over the house. There should be an outside entrance, as well as an entrance from the kitchen or serving room. Thus we see the usual requirements for the different rooms of the house. The essential rooms have been considered. In addition to these, if the price will warrant it, there may be other rooms and conveniences, such as a den or study, additional store-rooms, an extra guest 216 ARCHITECTURAL DRAFTING room, a nursery, a pantry off the kitchen for storing the supplies of the kitchen. A clothes- chute would be very convenient also. This chute is a vertical shaft connecting the bathroom with the laundry in the basement. There is a door into this chute at the bathroom, and one on the first floor. It should be lined with wood, with the pieces placed vertically to offer no obstruc- tions to the passage of clothes. The purpose is evident, being a means of conveying the soiled linen from the second and first floors to the base- ment, and thereby saving carrying them from all over the house in a basket to the basement. In summing up this portion of the work, let the draftsman put in all conveniences in the way of cupboards, shelves, and drawers wherever there is a space, corner, or portion of a wall. In this way you make a favorable impression upon the housekeeper, and if this is done, the " battle is more than half won." Fig. 9 is a first-floor plan, showing the arrangement, the dimensions, and all necessary information to give the builder a complete understanding of the work. The Elevation. Having considered briefly the general methods used in the drawing of architectural plans, we shall now consider the elevations. By elevations we mean the different " views" of the building. These should show exactly the appearance of the building wheD completed. Use of the Orders. It will be assumed that ARCHITECTURAL DRAFTING 217 the reader is familiar with the Orders of Archi- tecture (see below under heading " Orders of Architecture"), and that he knows the names of the various parts of an Order. From a study of the Orders, we see that each one has three main divisions, the entablature, the column, and the pedestal. These are in turn divided into parts, the entablature consisting of the cornice, the frieze, and the architrave; the column has a capital, a shaft, and a base or plinth; and the pedestal, a cap, a die, and a base. Generally speaking, an elevation especially the principal one shows these component parts of an Order. They may not be classically correct in proportions, but the parts are more or less prominent, and should be used as a basis for design of all classes of work. Let us take a residence for an example. Study an elevation of a good type of this class of building. We see that the basement wall up to the first-floor line corresponds to the pedestal of the column, a strong, massive part to support the building above. This pedestal is usually capped by a projecting course we call a water- table that is, a board or strip projecting from the face of a wall to turn the water from the side of the building away from the foundation. This corresponds to the base or plinth of the column. Above the water-table, the part of the house extending to above the top story windows corresponds to the shaft of the column. Very often this column effect is emphasized by means 218 ARCHITECTURAL DRAFTING f FINIM<; Moon *1 Tig. 9. First-Floor Plan of a Residence at Champaign, 111. The scale reproduced is valid only as referring to the original-sized drawing. ARCHITECTURAL DRAFTING 219 of corner boards at the corners of the building. At the head of the top windows, or in that vicin- ity, we see a horizontal board or moulding, mark- ing the division between the column and the en- tablature. Sometimes this entablature is divided by another moulded course, indicating the frieze and the architrave. There is always a cor- nice of some sort, very often corresponding to the cornice of the Order; this may vary from the true profile to a small projection, such as a few projecting courses of brick. In the modern office building we see the lower stories marked by a projecting stone course; below this, the walls are of stone, and usually present a solid, substantial base upon which rests the upper part of the building. The column is in- dicated either by pilasters or column-like projec- tions from the main face of the building, or by a three-quarter column fastened to the building. The upper stories, depending upon the height of the building, are placed in the entablature. It is worth while to study this feature in all classes of building, in order to design intelli- gently. Thus we see that the Orders of Architecture are really the basis for all our designs. This same applies to any type of building, being more marked in some classes of buildings than others. The Colonial residence or Colonial Architecture adheres strictly to this basis of ornament. If de- tached or free columns are used for porch con- struction, then we see the component parts of 220 AKCHITECTUKAL DKAPTHSTG the Order carried out exactly. Therefore, in any building, use the Order to start the general ele- vations, and elaborate or suit the elevation to the class of building. Characteristics of Types of Buildings Let us now consider the general types of buildings for different purposes. The residence, for instance, usually has the appearance of a quiet, restful place. The types of doors, win- dows, and roof lines are in general similar, there being large windows and plenty of them. Resi- dences thus constitute a class marked by well- known and easily distinguishable general char- acteristics. Consider a library. We see here a closer ad- herence to the Orders than in many other types of structure. Usually there is a pillared entrance of some form or other; the windows are all large and dignified. The roof is covered with tile or some other more expensive covering. In general, libraries are a dignified class of buildings, easily distinguished as such, and usually quite costly. In schoolhouses we see a class of buildings with large areas devoted to windows, not usually of very great height, and with a tower of some outline. There may be large, blank walls, w r hich make this class of buildings all the more distinct. The office building generally has numerous windows, not usually grouped but placed one above the other, and is rather plain in treatment except at the cornice. ARCHITECTURAL DRAFTING 231 The warehouse forms another excellent ex- ample of the exterior indicating the purpose of the building. In this type, we see small windows, some barred, with heavy doors, showing it to be a building of great strength and fire-resistance. Thus endeavor, in designing any building, to make it indicative of the purpose for which it is designed. Study carefully from examples or from pictures these characteristics, and apply these principles to designs you may submit. General Composition of a Building or Treat- ment of Elevations. A few words about the gen- eral composition or elevation of a building might be said. There are a few principles involved that will be an aid in deciding upon the charac- ter of the elevation. Fig. 10. Illustrating Method of Treating Elevations. In A, vertical lines are emphasized, adding to the appearance of height; in B, emphasis is laid on the horizontal lines, adding to breadth and length of structure. The adjoining buildings will sometimes have a certain influence upon the treatment of the elevation. Should the new building be placed between two buildings taller and larger in every way, then some means to increase the general height must be used. Should there be plenty of room and the buildings on either side be far 222 AKCHITECTUKAL DRAFTING enough away so that they will not be seen or in- cluded in the general view of the new building, then the design may be anything in keeping with good design. If the present buildings are large and massive, covering a good deal of ground, then we shall treat the new elevation correspond- ingly. In Fig. 10 are shown the results, on the same building, of different treatments of eleva- tion. In A we see vertical lines emphasized, as they tend to increase the height. Such a treat- ment of the elevation should be used if the loca- tion were between two taller buildings. In B on the other hand, the horizontal lines are empha- sized. There is the sill course or water-table at I A B Pig. 11. Two Typical Methods of Treating Windows. the first-floor line; then a belt course about the second-floor line, and a course at the attic line. These tend to lengthen the general appearance, and would be in keeping as mentioned above for the third condition. In A, we see that the cor- nice is made smaller; while in B, the eaves are AECHITECTUEAL DEAFTING 223 given a greater projection, thereby giving an- other horizontal line. A and B are exactly the same size in plan and also in height to the eave line ; yet there is no mistaking which appears the taller. This is the fundamental principle in the de- sign of an elevation. Having then this start for the elevation, carry out the same principle in the windows, either grouping them and keeping them low, for the design B; or else use single windows with a pier or wall space between. Very often, if the ceilings are high enough, windows may have a transom bar and transom, thereby increasing the height. In the treatment around the windows, for B, we shall use merely a cap of some kind with no vertical lines ; while for A we shall make use of an outside trim with a cap. See Fig. 11. In all our designs, it has been attempted to emphasize either the vertical lines or the hori- zontal lines. This is but one the most impor- tant one, however of the points to consider as to the general character of the elevation. The purpose of the elevation is to give an effect that will be pleasing to the eye, and at the same time fulfil the requirements of the plan as to the ar- rangement of windows and story heights; and very often it will make the property more valu- able. For, consider two residences offered for sale at the same price, with the same surround- ings. One has been built with no idea as to design or relation to the surrounding buildings; the 224: AECHITECTUEAL DRAFTING other has been treated to correspond with the existing conditions, has been made attractive by the arrangement and style of windows, and the cornice has been designed to give a certain ef- fect to the other parts of the design. There is no question which would be the best investment. Work, then, with this end in view, as if it were your own builidng, and you wanted it to be the very best for the money. In drawing the elevations, usually each side of the house is shown on the drawings. The front elevation is made the most complete. The owner wants to see how his building will look when completed; therefore show the materials. If the walls are shingled, indicate by lines that there are to be shingles not by covering the entire front with perfectly regular, mechanical lines representing the shingles, but with patches here and there over the entire front. Indicate by ar- rows and lines, similar to dimension lines, where the shingles are to be used. Indicate the brick of the foundation above grade the same way. Show the type of windows you expect to use; show the correct profile or outline of the cornice; the general design of the front door and the porch and steps; indicate the glass in the door, whether double strength, plate, or beveled-plate glass. In short, make this front elevation com- plete, so that an owner can see just the materials used, where used, and just how the building will look from the front. Very often the stairs are dotted on this elevation to show just how they go AKCHITECTUEAL DEAFTING 225 up to the next floor above; but this is not to be recommended, as it detracts from the general ap- pearance of the elevation, and there are other and better methods of indicating stairs, as ex- plained later. Very often there will be a small section of the house on the same sheet with the front elevation. ! iii U_AJ ' ' ' Fig. 12. I}. *rd ( =^=ri-.---_-=!| .4 Front Elevation of a Residence at Champaign, 111. Outline emphasized. This is used to give the heights of the floor-lines, the window lines, and the cornice lines, and not for showing of details. This is not objectionable, as the section is a separate drawing entirely from the elevation, and will give a means of showing 226 the above data without marking them directly on the elevation. Too much emphasis cannot be laid upon the method of finishing the front elevation. A little time and careful work spent on this drawing will very often confirm a favorable impression on the owner. The style of letter used and the arrange- ment on the sheet should all tend to make the drawing attractive. As a final touch, it will be found very desir- able, after the elevation is complete, to outline the building with a heavy line, thus emphasizing the general outline of the building, while the other lines are all uniform but lighter (see Fig. 12). The side and rear elevations should also be complete in that they should show the exact ma- terials used and the exact size and spacing of the openings; but they need not be so carefully drawn nor so carefully lettered as the front ele- vation, since they are more or less a secondary consideration. The location of openings should be studied with the idea of the general effect on the eleva- tion, as well as on the necessary arrangement for the rooms. In other words, do not locate all open- ings on the plans definitely without studying the elevations also. Be sure that the openings are correctly located on the elevations so that the plans and elevations will agree, and not merely put on the elevations where they look the best without any reference to the plans. AECHITECTUEAL DRAFTING 227 To sum up, make the elevations true pictures of the building when completed; indicate the ex- tent of all materials ; study the design, making it typical of the class of building in hand, and make it complete in every respect. Scale Details The Section. Having completed the plans and elevations, it will be necessary to make large- scale sections through different parts of the building. A section should be shown through every portion of the building that is of different construction from others. These sections are usually of a larger scale than the plans and ele- vations. In Fig. 13 we see the method of drawing and finishing these details. A scale very convenient for use is three-quarters of an inch equals one foot (or, as it is often called, a "three-quarter- inch" scale). The purpose of these sections is to show exactly how the building is to be put up the method of supporting the cornice on the plate; the roof sheathing and covering; the con- struction of the gutter, with all materials named; the ceiling joists and method of support on the outside wall; the lath and plaster; the wall sheathing and siding or shingles; the picture mould; the detail of the inside window trim; the base around the room; the second-floor construc- tion, showing size of joists and method of sup- port on the wall; the composition of the floor, whether double or single, or any paper between o 2 1 P a 230 the floors; the lath and plaster of the ceiling be- low; the details of the window construction, trim and stool or inside sill; the base around the room; the method of supporting the frame wall upon the basement wall; the water-table; the thick- ness of the basement wall; the level of the ground on the outside; the basement floor inside; and the footing. Use plenty of dimension lines and explana- tory notes. In dimensioning story heights, al- ways give from finished floor-line to finished floor-line, or from floor to ceiling; never dimen- sion the thickness of the floor construction. In other words, referring to Fig. 13, we shall get into trouble by trying to specify exactly the thickness over all. This should be left without a dimension, by showing the plaster, noting the size of joists, and showing the floor, whether one or two thicknesses, let it come what it will. The thickness of the plaster will vary slightly; a 2- inch by 10-inch joist is not 10 inches deep; neither is a floor of two thicknesses 2 inches thick. Thus we see it is rather an uncertain di- mension. A sheet is usually devoted to these details. Sometimes as many as half a dozen different sec- tions are drawn for a residence, each showing differences in construction. Be very careful to note on the plans just where each section is taken, and put correspond- ing letters on the title for the section. The use of notes and plenty of them cannot be urged too a -j T x s 0/10. kTWm *t\v* ARCHITECTURAL DRAFTING 231 strongly. The small working drawings are very unreliable as to details; and consequently the more details, the better the contractor will un- derstand just exactly what he is to furnish, and will therefore be able to figure the more closely. These details, well executed, will prevent many disputes between contractor and architect, and between architect and owner, as well as save the "extra" bills from the contractor which are sure to arise from incomplete drawings. Cross-hatch or cross-section all sections or materials that are cut in two, using some stand- ard symbol, as elsewhere indicated, on the draw- ings. This makes a much better looking draw- ing, and makes it much easier to interpret. To indicate further the general treatment of the interior finish, the rooms having anything in the way of a paneled wainscot, beamed ceiling, or finish around a fireplace, also the sideboard, cupboards, and pantry fittings, should all be shown. The best and perhaps the most com- mon method is to draw at one-quarter-inch scale the different elevations of the rooms, showing exactly the height, width, and any features of unusual arrangement. Should opposite sides of a room or any sides be similar, "after putting the title on one drawing, note under it: "Oppo- site, north, south, etc., sides similar." There is usually one sheet of just such drawings as this to accompany the regular set of drawings. Since plans are usually submitted to competitive contractors, there is not the chance of one pro- so a 3 232 u I 1 1 H 8 g 1 H jj i *^ 5x n Twirrw BACKC & I i y s r \ o Hyj n & -J 0. c IT 2 L. I Nl | r^g! ; * 5 \ "*" s b LH 1 .OJ vto|| J i < i i u . -J $ -i -iii B5 U y iu > n II 8 IOJ ^ \, h ! h I h 1 i il \r\ m v H n < i i 1 'i (f-~2 9 h i i: flJN H C il ! ti- ll ? '' it "I ZI K- < 1 K i i i i 1 < tm t tfi OJ i ! ^ :S I l J r lu uJ I 1 n 'III % l| -4- r H . u 1 1 2 P f- w J n 1 iffl ^ 2 h f-f _^~- ^ 9 -r < ^ 5 u. (Ll " O u P I 04 z: i I j Q a 1 I! \ j D aJ DC < r -* Bt< r 9V I j =jn g| HQ i , ". h ? i a 1 z:5 - ) f'SlI [fOP-Pt IcovNre il r <* c 1 J r 2> i i 1 ?SS^| 1 - d j a ft ft Fig. 234 ARCHITECTURAL DRAFTING 235 posal or bid being lower than another because certain things were overlooked or purposely omitted. In Pig. 14 we see drawings of elevations and sections of various portions of a living room and dining room, giving all necessary information. Pig. 15 illustrates completely the drawings necessary to show a pantry and butler's pantry. Full-Sizing. After the contract has been awarded, the general working drawings will have to be supplemented by drawings of differ- ent portions of the work at a large scale. Usu- ally these are drawn at actual or full size. In order to have your profiles and outlines made just as you intended, this method of drawing all parts of construction at the actual size is imperative. Take an example. You wish the plate-rail in the dining room made just so. Then you will have to draw this part of the work the actual size. If you do not do this, the contractor will put in a plate-rail of a stock pattern; that is> he will select some pattern that he can buy from a planing mill, and will use this. It is the cheapest way to do, for him; therefore you can- not blame him for saving anything he can, if the exact style is not definitely shown. In full-sizing, it will be well for the drafts- man to be familiar with the usual method of doing things, making his details practical as well as indicating the profile. The cornice should be shown; the interior finish; the method of mak- 236 ARCHITECTURAL DRAFTING ing the window-frames; all unusual woodwork; the construction of the beams for a beamed ceil- ing; all sheet-metal work, such as gutters, cornices, etc.; all stonework, such as water-, tables, window-sills, and door-step; all plaster work, such as ornamental cornices, and method of supporting under unusual conditions. You will hear it asked: "Why is it necessary to spend all this time detailing, when the contractor or the planing mill have their own way of doing these things!" There is just the point. They certainly have a way of doing things; but nat- urally their way is the cheapest way; therefore, give them details of how you want this work done, and see that it is done your way. Dimen- sions on full-size details are unnecessary. Fig. 16 is a reproduction of a sheet of full- size details. A word might be said as to the method of getting out these details. The drawing is first made on detail paper, a heavy yellow paper. A soft pencil should be used, as it makes the lines more distinct and is easily changed or erased. After the drawing is completed on this paper, then use a cheap, thin paper, and trace through, using a broad, heavy line and colored crayon for cross-sectioning the sections of the work. Yel- low is generally used for wood, red for brick, green for stone, blue for iron or steel, and brown for terra-cotta. A second tracing is also made. Thus we have three copies of each detail one for filing in the office for future reference, and ARCHITECTURAL DRAFTING 237 CEILIMC BEAM Fig. 16. A Sheet of Full-Sized Details 238 AKCHITECTURAL DRAFTING two for the contractor. One of the copies made on tracing paper is usually kept in the office, since it can be folded up to a convenient size and filed, the original and one copy on thin paper going to the contractor. REPRODUCING DRAWINGS The question of the method of reproducing drawings is an important one as to cost and time consumed. New methods are being adver- tised on the market every day. Blue-Printing. The blue-print process is the commonest, and generally speaking the cheap- est. There is a chemically prepared paper which is sensitive to the light. The paper is treated with a solution of citrate of iron, ammonia, and red prussiate of potash, and is placed in a dark room to dry. The drawing has previously been prepared on tracing cloth or paper. When the blue-print paper is dry, place the drawing, face down, on a sheet of glass, usually held in a wooden frame; over this, lay the blue-print paper, with the sensitive side down; over this, place a layer or two of soft cloth similar to Canton flannel, and over this place a board backing. Turn the frame over now, and expose to the sunlight for a few minutes, depending upon the intensity of the sunlight. After exposure, remove the blue-print paper, which has turned to a dark bronze color, and place it in a tank of water. Gradually the print comes out in white ARCHITECTURAL DRAFTING 239 lines, leaving the background blue. These white lines were directly under the ink lines of your drawing, and the sun therefore could not attack that portion of the paper. Hence the water washed off the blue-print solution, leaving the white paper. A little experience will soon teach how long to expose in different kinds of weather. Prints may be made on cloudy days, and have some- times been made even during a mist. The expos- ure, of course, must be much longer on such days. The prints from such exposures are not so clear, distinct, and "sharp-cut" as those made on bright days. When possible, avoid making blue-prints on dark days, if you expect the best results. Paper for blue-printing can be procured ready to use, from dealers all over the country, at a nominal cost. This is machine-prepared, and is more satisfactory than home-made. Blue-prints are hard on the eyes, and, having a blue background, cannot be dimensioned, noted, or to any great extent changed. Should small alterations be necessary on the blue-print, use a solution of common soda and water with a pen. This is not very satisfactory, but in cases where changes are necessary it will do. White-Printing. From working drawings, white prints can be made. This kind of print is just the reverse of the blue-print. Here we have blue lines on a white background. In order to make white prints, a negative first has to be 240 ARCHITECTURAL DRAFTING made from the drawing. The paper used for the negatives is specially prepared and exposed and washed in the same way as blue-prints. When washed and dry, it is a real negative, on which all pencil lines are white and the background is black so as to exclude the sun all the reverse of the drawing. This negative is then used by placing it over regular blue-print paper. The sun passes through the white lines, and is excluded from the rest by the black background. Upon washing the blue-print paper, the lines having been exposed to the sun are changed to blue ; and the background, not having the sun on it, is washed off, leaving the white paper. This process makes a much better looking drawing than a blue-print, and is not so hard on the eyes. The cost is a little higher, on account of the negative ; but after the negative is made, the cost is the same as for blue-prints. Aligraphy. Another process, known as Aligraphy, has been patented. By it, drawings can be reproduced on linen or paper, and the lines are practically as black as the original. They closely resemble etchings. For very fine work, this process makes splendid reproduc- tions; but it is more expensive than any of the processes above mentioned. Hectograph Process. Another common method of reproducing drawings is the hecto- graph process. This consists in making the drawings with suitable aniline inks, and then placing them face-down on a gelatine pad. After AKCHITECTUEAL DKAFTING 241 being in contact for about two minutes, they are removed, and blank paper is brought in contact with the pad, being in turn removed. It will be found to give a complete drawing similar to the original in scale, color, etc. Upwards of thirty- five copies may be taken off, depending upon the intensity of the original. The pad may be made as follows : 1 part of white glue to 5 parts by weight of glycerine. Soak the glue over night, in just enough water to cover it. Bring to the boiling point slowly, without burning; then add the glycerine, and thoroughly mix. Pour into a shallow pan; remove all air-bubbles from the surface with a stiff card; and allow to cool. Before using each time, wash thoroughly with a sponge and allow to dry partially before applying the drawing; also wash well immediately after using, to remove all traces of ink. The proportions may be varied slightly for different climates. A cold climate will require more glycerine, and a warm climate more glue. The pad should be stiff enough to resist pressure from the fingers when firmly pressed upon it. Other additional ingredients are sometimes used. Perhaps they have their advantages ; but the mixture as described has been used very suc- cessfully. Often, in very hot weather, after a pad is made, it may seem too soft to work well. In such a case, placing the pan on a cake of ice will harden the mixture and make it satisfac- tory. 242 ARCHITECTURAL DRAFTING A cheaper pad may be made by using a mix- ture of a special clay and glycerine. While not giving so many prints as the glue pad, it can be used more economically for large drawings. Hectograph pencils may be had in many colors, which are used for making full-size details. These drawings are copied in the same way as the regular pen-and-ink drawings. The hectograph process is gradually gaining in favor, and in some localities it is used exten- sively. It has several features to commend it : (1) All materials can be represented in appropriate colors. (2) Copies are very cheap, and can be made on paper or prepared cloth. (3) The draftsman finds it convenient when making revisions, as parts of the drawing can be cut out and a correct portion inserted. No matter how badly the drawing is cut and patched, the prints are perfect. (4) In assembling different drawings on a sheet, they may be shifted at will, and a better arrangement secured. (5) When a sheet is composed of small drawings, the draftsman may work over the small drawings more com- fortably than if compelled to work on a large sheet. The hectograph process, however, has some drawbacks, which may be indicated as follows: (1) Small details cannot be shown so clearly, as the lines must be quite heavy if a number of prints are required. (2) The drawings fade mor* or less if exposed to a bright light, but they are permanent enough for most work. (3) Some draftsmen do not like to use the inks, as ARCHITECTURAL DRAFTING 243 they are sticky and soil the fingers. This, however, should apply only to the inexperienced. Hectograph inks may be purchased of dealers everywhere, in all colors. Below are suggested colors for various sections of materials : Purple For lines in general, outlines, profiles, etc.; also for sections of plaster, and concrete. Red For dimension lines, and for sections of brick- work. Blue For iron, steel, flashing, etc., in section. Brown For sections of terra-cotta. Green For sections of stone or marble. Yellow For wood. For the blue-print process, the drawing to be reproduced is preferably done on tracing cloth, on the rough side, in black ink. Erasures may be made on this, and the work corrected; but the finished drawing has to be complete in every respect, as every line is reproduced just as drawn. For the hectograph process, we shall need to make the lines much heavier, and may use colored inks. Mistakes cannot be erased, but are cut out, and a new piece of paper placed over the hole, and the drawing continued. Tracing cloth makes the most satisfactory material all around for the original drawing. It is translucent or semi-transparent, will make good prints by almost any process, and is much more desirable than paper for filing away and for constant use in the drafting room. The use of colored inks is not to be recom- 244 ARCHITECTURAL DRAFTING mended. They make the tracing look very pretty, but they print very poorly, some shades of green being hardly visible on the blue-print. Red reproduces very faintly, and when this color is used for dimension lines they should be heavy. Black is the most serviceable color to use. In steel detailing, the entire drawing is done in black even dimension lines. ARCHITECTURAL FORMS Having considered the general method in the drawing of architectural plans, we shall now consider some of the general forms employed to represent different parts of the work. Conventional Forms and Symbols. First there must be some adopted form for represent- ing materials. It will be found throughout the country, that each architectural firm has its own architectural forms and symbols. This is rather confusing, since it requires a draftsman chang- ing offices, or Building Departments checking plans, to become familiar with the symbols as used by each office. In Plate A are given some general forms for representing materials. Fig. 1 represents brick. A section of a brick wall should be sectioned as shown, by parallel lines at 45 degrees, slanting down to the left. It might be well to repeat here what has been said about the use of colored inks for drawing. Except for dimension lines, avoid the use of colors. The materials may be indicated as shown ARCHITECTURAL DRAFTING 245 BPICK BUBBLE STONE CUT STONE. TQf2A COTTA F/G.s FtG. 6. WOODEM PARTITION - LATHED AND PLA,STRED nnlnnlnn JU UU UU . 7- B&ICK WALL- FUQ&ED, L.ATHED AND F/G. 8. 3. 9. SOL.ID PL-ASTCK PART- ITION - lLASTEfZ.D. Plate A. Conventional Symbols for Representing Materials on Ar- chitectural Drawings. 246 ARCHITECTURAL DRAFTING by varying the texture of the line and also by different forms of dotting. Fig. 2 We use alternating lines solid and dashes at 45 degrees to represent rubble stone such as is found in most basements. Fig. 3 We use solid lines running at 45 degrees to each other and in opposite directions, to represent cut-stone work such as sills for windows and doors, chimney caps, and any kind of finished or dressed stone. Fig. 4 represents concrete. This symbol is composed of small, wavy lines, with occasional triangular shapes to represent the stone. This symbol may be used to represent the concrete such as would be used in a solid wall or reinforced concrete for floors and other similar constructions. Fig. 5 illustrates the method of showing terra-cotta. This is the same as for brick, with the lines running in the opposite direction. For representing an interior partition of a frame building, the method shown in Fig. 6 is perhaps the most satisfactory. Plaster is repre- sented by parallel lines to opposite sides of the wall. Very often, in fireproof buildings, partitions are built of hollow tile and plastered on both sides. Fig. 7 illustrates the method of indicating such a partition. Where a brick wall is furred on the inside and then plastered, we use the ordinary symbol for ARCHITECTURAL DRAFTING 247 the brick wall, and show the plaster away from the wall, as in Fig. 8. Very often, instead of using the partition as shown in Fig. 7, it will be built up solid of plaster 2 inches thick with a layer of expanded metal imbedded. This partition is shown in Fig. 9. It will be found a very satisfactory partition, requiring less floor space, and equal in every way to any other fireproof partition. On the basement plan, various lines of pipe should be shown. There should be a porous tile drain, in damp soils, all around the outside of the basement walls, at the footing line. Such drains are constructed of porous farm tile, laid with butt joints and no cementing of any kind. The tile being porous, the water in the soil perco- lates through the walls of the tile, and is carried away. These drains are indicated as shown in Plate B. For the sewer connections inside the build- ing, and extending at least six feet outside the basement wall, the pipe should be cast-iron and have calked joints. Such pipes are shown on the basement plan as in Plate B. Connected to this cast-iron pipe outside the basement wall, a vitrified tile drain should be used, with cemented joints. Such pipe is also shown in Plate B. All these pipe lines should be shown in black on the drawing. There are certain lines used in a drawing for reference, such as axis lines that is, when a room or building is symmetrically arranged 248 ARCHITECTURAL DRAFTING POQOUS TILE. DQA/NS. /GO/V PIPE DQA/NS. P/PE. THE. ABOVE. SHOULD BE SHOWN WITH &LACK L/NES. AXIS LIN ES (BED). BUILDING LINES (QD). DOTTED L./NES FOG GENE.QAL /&-0" < D/MENS/OM L/NES (USUALLY RED WITH BLACK AQ&O Plate B. Conventional Methods of Representing Drain and Sewer Pipe, Axis Lines, Building Lines, Dimension Lines, etc. AECHITECTURAL DRAFTING _ around a center line. In order to make such axis lines distinct from general lines, they are usually made as shown in Plate B. When there are offsets or projections on a wall, such work is measured from certain lines established as building lines (see Plate B). Usually the outside wall line of the first story is taken as this reference line; and the basement wall line, the second-story line, the eave line, etc., are all measured as projecting from this line. All dimension lines are to be noted as shown on this same plate, in which the arrow-heads are black, the connecting line is red, and the figures are in black, always above this line. This is the best practice, though sometimes dimen- sions are placed in the center of the line, the line being stopped to allow the figures to be inserted. This method takes more time and is not so practical, since the dimension line is broken and in some cases there might be a dispute as to just how much the dimension is intended to include. For lighting, there are standard symbols adopted by the National Electrical Contractors' Association of the United States. These are published on a card convenient for reference, and copies may be had by applying to the Secretary. Another form of symbols has been adopted by the Boston Society of Architects, copies of which may also be had on application. The latter sym- bols are shown on Plate C. These are given for convenience in laying out plans, and are not 250 AECHITECTUEAL DEAFTING This Specification is based upon the. FT IH 7 T " T. I* 8 9 FT. IN. tO r " FT IN. /I" F X T ,N. \2 ITT FT //v. * FT. IN. r " FT IN. r FT. //V. HEIGHTS OF CNTCR OF WALL OUTLETS. i/n/djf of-harn'/je Jptci/ScJ. L/V//VG GOO"MS- S-&" OFF/CES- S'- O" CHAMBE.f3S- 5-O" COfZRIDOQS- 6'~3" HEIGHT OF 5W/TCHES~t//ess otherwise. spe.cifi*,ALLJ <--S-\ '-- s ;.- .-'. i )-".-:-.v ' ^ '.' oo Nc'ac-jc. Ll^'''C.