Floors | Walls | Roofs
APA's extensive library of resources provides builders, designers, and specifiers with a wealth of information, from basic construction instructions to highly technical data, for a variety of residential building applications. Learn about building structurally sound floors, walls, and roofs to comply with stringent energy and residential code requirements, as well as building for areas prone to extreme conditions such as high wind, seismic, moisture intrusion, and more.