2019/07/18 by Stafford, B. F.
#Roofs #Toitures
paper · doi:10.4224/40000639
In recent years, waterproof membranes made of many new materials have been developed for flat or nearly flat roofs, and for roofs having unusual contours such as curved shells, hyperbolic paraboloids, etc. Prompting this development has been the need for speedier, easier application and greater economy than that now enjoyed by the roofing industry.