Development of an improved system of wood-frame house construction

Abstract

A new system of wood-frame house construction has been developed which combines increased use of low-grade wood, prefinished components, and rapid field assembly methods without much divergence from conventional construction. Laboratory evaluations of the components of the Nu-frame system indicated that; (a) 4-foot spacing of the W-trusses tested provides a safety factor of three over design load, (b) the wall framing system with 4-footspacing of double 2- by 4-inch studs (Nu-frame) is a reasonable method of construction, (c) the use of a l/2-inch fiber board filler between studs (Insul-2) provides racking resistance as well as adequate thermal and sound insulation, (d) the interior finish (Perm-board) has greater stiffness and strength over a 48-inch span than 3/8-inch gypsum board over a 16-inch span, and (e) the prefinished roof covering (Plastic plank) provides excellent resistance to moisture entry. The use of both mechanical fasteners and adhesives assures rapid on-the-job assembly of framing and covering materials and low site labor costs. This laboratory evaluation will be followed by construction of an experimental unit for further study.

Citation

Anderson, L.O. 1965. Development of an improved system of wood-frame house construction. Research Paper FPL-47. Madison, WI: United States Department of Agriculture, Forest Service, Forest Products Laboratory. 13 p.