Architecture firm Siegel & Strain reports that two of the firm's projects are listed on the recently released list of 20 verified zero net energy buildings in California.
This code implies that all low-slope roof covering materials must be able to withstand typical impact loads, such as foot traffic, hail and driving rainstorms.
The American Architectural Manufacturers Association recently released an updated document using ASTM test methods to qualify windows, doors and skylights as "impact resistant."
During the last several years, coating manufacturers have become increasingly more sophisticated in creating products to seal and protect concrete and stucco.
Cover boards have been used with flat roof systems for decades, starting with hot mopped and torch-applied asphalt systems to protect the underlying roof from damage during installation.