SPT - Key Persons

After most shingles are manufactured, tabs are cut out to shape the shingles for assembly. These tabs contain fresh asphalt. Also discarded are new shingles that did not meet quality standards. Today, most new shingles contain fiberglass mat. To prepare shingles for use in asphalt pavement, the shingles need to be processed according to end use specifications and for state projects according to specific state Department of Transporation specifications. This typically includes removing non-shingle debris and properly sizing the material for each end use application.