General Roofing Mfg. Co. · General Roofing Mfg. Co. · leaf 6
Approved methods for importantcity structures Being of a gaseous nature, … OOFS dont wear out, they dry out. Theonly test of roofing is on the roof. It isabsolutely impossible for anyone, even anexpert, to determine the quality or durability of roofing by simplylooking at it. Bend-ing, tearing, smelling,heating or in anyother so-calledtests — even achemical analysis-—will…
Architecture, Domestic · Designs and plans
Internet Archive · Building Technology Heritage Library · Public Domain Mark 1.0. Free to use for anything.
