There are currently 4 names in this directory beginning with the letter A.
A type of roof discoloration caused by algae. Commonly called fungus growth.
Application of very large individual shingles with the long dimension parallel to the rake. Shingles are applied with a 3/4-inch space between adjacent shingles in a course.
A bituminous waterproofing agent applied to roofing materials during manufacturing.
Asphalt roofing cement
An asphalt-based cement used to bond roofing materials. Also known as flashing cement or mastic; should conform to ASTM D4586.