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Wood in High-Rise Aportments

Changes in the 1964 uniform building code that recognize, for the first time, the efficient fire-protective qualities that can be built into wood, are bringing about some major changes in construction of high-rise buildings.

For yearg such buildings designed for multiple occupancy had to be totally constructed of steel, irono concrete or masonry to meet requirements of the International Conference of Building Officials. Following years of tests which show tllat wood, impregnated with fire-deterring chemicals, has low flame spread and fuel contribution, the 1964 code allows use of fire-protected wood in studs, plates and blocking in these multi-occupancyo high-rise buildings.

First major use in this area of fire-protected wood in lieu of the steel studs previously required is by the Tan Construction Company, Palo Alto builders and developers. All studs, sill stock, firring and fire stops in two new high-rise apartment buildings being erected at a cost of approximately $3 million, are fireprotected wood, produced by the Koppers Company, Ing., at its Wilmington, Calif. plant.

Koppers furnished a total of 28,500 Non-Com studs for Tan Manor, an 8-storyo 90-unit deluxe studio apartment building, and for Tan Plaza, an B-story, 60-unit deluxe building with 2 and 3bedroom apartments.

Faber Tan, partner with his father in the Tan Construction Company, estimates that the in-place cost of the fire'protected wood gtuds is frsm t5 to 20 percent lem than that of the steel studs previously used. Wooden studs, he pointed out, are erected by carpenters, using conventional carpenters' tools with resultant labor saving. Other advantages cited by Tan are better sounddeadening qualities when used in connection with dry-wall, greater ease in hanging "built-ins," and protection of telephone wiring which is sometimes damaged when pulled through holes cut in steel studs.

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Fire-protected wood is created by putting the lumber in large air-tight retorts, completely surrounding it with the fire'deterring chemicals and applying air pressure for hours until the chemicals have thoroughly impregnated the wood cells. After treatment, the surface of the wood is dry and clean. When fire threateng NonCom chemicals react as catalyzers, producing carbon and water vapor at temperatures below the ignition point. This repels the spread of fire through or along the surface of the wood.

Home Hondy Mqn TV Films

A series of 13, one-half hour shows titled 'oThe Home Handy' man" are being prepared for educational TV and are being shown in 14 cities throughout the country this fall.

The 13 home project programs are being underwritten by the National Lumber Manufacturer's Association, which expects to reach an audience of upwards of lO-million persons. Other edu' cational TV networks throughout the country can be expected to carry the series which would project the audience to over 70 million persons.

San Francisco is the onlv West Coast citv where the films will be shown.

Educational TV stations do not ellow commercials or advertising material, but at the beginning and end of the show the sponsor's name is flashed on the screen. Lumber and wood product literature will be used in the shows and viewers can request copies of publications ofiered during the show. NLMA technical and consumer publications will be ofiered tb viewers at the end of each show.

The programs will cover the following subjects: Introduction and iraming of interior partitions; framing projects; window installation; paneling a wall; laying a floor; putting up a ceiling; building a room divider; building built-ins and bookcases.

World's Foir Bonus: A Building Showcose

Not all the wonders of the New York World's Fair lie in the shows and displays offered by various exhibitors and pavilions. An Argus-eyed visitor will notice, for example, that the exposition is an immense showcase of an extremely diverse selection of building materials and offers a rare opportunity for viewing them in one place at one time,

Use of Weldwood products from United States Plywood Corporation, alone, demonstrates how varied this product application iswith both interior and exterior materials represented in the selection.