Although timber engineering is very limited in the South African construction industry in general, the use of pre-fabricated "engineered" nail-plated timber trusses dominates the provision of roof structures for the home building market in S.A. The shift from site made- to rationally designed pre...
Shingle, thin piece of building material, usually with a butt end thicker than the other. Shingles are widely used as roof covering on residential buildings and sometimes for siding. They are of stock sizes and various materials—including wood, asphalt,