? Commercial Paving, Inc., Scarborough, Maine, uses tear-off scrap roofing in several
different paving applications. [13] Processed shingle material is incorporated in
“R&R”, a blend of aggregate, crushed and screened demolition waste, virgin
aggregates, and an asphaltic emulsifier. “R&R” is manufactured to a variety of
specifications, and is used as base and subbase material.