When a material accepts quantities of gases or liquid, such as moisture.
Roof discoloration that can be caused by algae. Commonly described incorrectly as fungus growth.
Roofing nails and staples driven into decks at angles not parallel to the deck to fit into tons of tight spaces without running the nailer’s handle into a...
A laminated style of shingle with a architectural design
The Asphalt Roofing Manufacturers Association, a trade association upholding standards for North American manufacturers of asphalt roofing.