In December 2007, ASTM International's Technical Committee D08
on Roofing and Waterproofing held a technical symposium during its
semiannual meeting. The symposium featured presentations of 11
peer-reviewed research papers that provide insight into research
affecting the U.S. roofing industry.
"Artificial Roofing Slates and Shingles" provides a report of an
investigation and testing of 11 artificial shake and slate products
from nine manufacturers. The investigation involved hundreds of
roof systems that were examined in more than 20 states.
The research concludes no test methods or programs accurately
predict the durability of artificial roofing slates and shingles.
The only appropriate indicator of the long-term performance of
artificial roofing slates and shingles is historical durability of
similar roof system products in a...
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