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Preliminary evaluation of the tensile & elongation properties of single ply sheet roofing membrane materials

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Abstract
A summary is presented on the results of a preliminary evaluation of two performance properties, tensile strength, and ultimate elongation, of nineteen single-ply sheet roofing membrane materials. Also reported are the changes in mass and length of the membrane materials caused by exposure to heat. The nineteen materials represented the general categories of single plyh sheet membranes (elastomeric, plastomeric, and modified bitumens) and were typical of those used in the United States. Membrane materials included neoprene, ethylene propylende diene terpolymer, chlorosulphonated polyethylene, polyvinyl chloride, chlorinated polyethylene and modified bitumens. The membrane materials were tested in tension before and after exposure to heat, and heat followed by ultraviolet radiation from a xenon arc. Control (unexposed) specimens were tested at 70 and 0F and the exposed specimens were tested at 0F. Three ASTM tensile test procedures were selected to determine the tensile and elongation properties of the membrane materials. All nineteen materials were tested according to a procedure for rubber. The plastics and modified bitumens were also tested according to procedures applicable to reinforced fabrice and bituminous roofing membranes, respectively.
Date
9/1981
Author(s)
Robert Mathey; Walter Rossiter Jr
Page(s)
442-
Keyword(s)
elongation; exposure condition; membrane properties; membrane; single ply; tensile strength; test method


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