SPRI has published a detailed Bulletin that includes recommendations for the design and contractor communities on important changes recently made to FM Approvals (FM) Standard 4470.
Roof coverings installed on low-slope roofs (roof slope <2:12) in accordance with Section 1507 shall resist impact damage based on the results of tests conducted in accordance with ASTM D 3746.
This is a report of the third visit by Architectural Roofing & Waterproofing and Roofing Contractor to China. Why China? The answer becomes clearer as the years so by. Most folks in the United States recognize that we are part of a world economy - a world economy in which China looms larger as it continues to grow.
