The prefabrication of houses by Albert Farwell Bemis Foundation & Kelly Burnham

Author:Albert Farwell Bemis Foundation & Kelly, Burnham
Language: eng
Format: epub
Tags: Buildings, Prefabricated
Publisher: [Cambridge] Published jointly by the Technology Press of the Massachusetts Institute of Technology and Wiley, New York
Published: 1951-03-25T05:00:00+00:00

grain finish. Most companies finished in the field, taking special precautions to combat the cracking of the finish materials at the joints. One method used for this purpose was taping and puttying, and fabric-based or other special wallpaper was another. Some com panies used batten strips, taking precautions to avoid the opening of cracks in the finish along the batten edges which result from shrink age and from movement of the panels behind them.

Large plywood sheets were not ordinarily used in stressed skin panels, but more usually in frame panel construction. Such sheets were made up by factory joining of 4' X 8' sheets into room-size sheets by scarf or lap joining and gluing under a hot press, yielding a very satisfactory continuous wall.

This brief discussion of the technical problems of plywood will illustrate the fact that the use of the material for efficient home construction has depended in large measure upon the development of sound factory processes. In the opinion of many a prefabricator, it is definitely a prefabrication material, which could be used effec tively in the field only through craftsmanship of cabinetmaker quality.

Several of the companies used laminated paper Upson board as an interior wall surface material, and at least one used it in a partially stressed skin design. Most frequently this material was used in room-size sheets, with the openings cut out of it. Designs took care to conceal cracks or unpainted lines which might appear as the result of movement of the board over the course of time. Other materials were also employed, such as Homasote, a wood-pulp board available in room-size sheets, used in one case in partially stressed skin construction.

Examples. Green's Ready-Built Homes, Ivon R. Ford, Inc., and Winner Manufacturing Company, Inc., all produced stressed skin panel houses. Green's Ready-Built Homes produced a panelized "solar house" (see Figure 30), of which much of the design was the work of George Fred Keck of Chicago. The basic panel was 39" wide, of wall height, and composed of %" exterior grade and %" interior finish plywood glued (by high-frequency induction hot press) to a frame of 2" X 3" edge members supported by two 1" X 3" inter mediate studs. Panels were held together by metal connectors on the grooved and beveled panel edges, the connectors being held firmly by the position of the heads of screws attached to the inter secting edge of a partition or corner panel (and also to battens, which were inserted at each joint). This gave the system a feature of demountability. Between the plywood surfaces two aluminum-

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