New standards guide growth of MB systems

Article Abstract:

The American Society for Testing and Materials has approved product standards for various types of styrene-butadiene-styrene (SBS) and atactic polypropylene (APP) modified bitumens. The approval gives standard numbers to three SBS products and two APP products, making it easier for contractors to identify these products and know their specifications. Moreover, the standards require suppliers to indicate on package labels information such as granule adhesion, minimum coating thickness and net coverage.

Product standards, safety, & recalls, Paving & Roofing Materials, Asphalt Paving, Roofing, and Saturated Materials Manufacturing

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SPRI invests in the roofing industry

Article Abstract:

SPRI, an association supporting commercial roofing sheet membrane and component manufacturers, has been actively promoting contractor concern through several industry-aimed initiatives covering research work, code issues, standards development and other programs. Among the association's most recent projects are the development of the Factory Mutual Research Corp Approval Standard 4490 and generic high-wind testing.

Roofing, Siding, and Sheet Metal Contractors, Group structure, Roofing & Sheetmetal Trades

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