Shingle Recycling Husnu Kalkanoglu November 2, 2007

CertainTeed Corporation Profile - Founded in 1904 in East St. Louis by George M. Brown as the General Roofing Manufacturing Company - Headquarters in Valley Forge, PA - Technical Center in Blue Bell, PA - Eight operating groups - 9,000 employees - 70 Manufacturing locations in USA and Canada

Polymer and Vinyl Siding

Fiber Cement Siding

Polymer Trim

Fence and Railing

Pipe

Insulation

Gypsum Board Joint Tape Finishing Products

Ceilings

Residential Roofing - Shingles

Commercial Roofing - Membranes

Cost incentives encourage post industrial recycling Asphalt shingles contain similar raw materials as hot mix; asphalt, glass mat, granules and limestone stabilizer

Recycled plant waste hardly makes a dent - Annually an estimated 10 million tons of asphalt shingle tear-offs are disposed as landfills - Annual plant waste is reported to be about 1 million tons

Adding tear-offs from re-roofing has its challenges - Tear-offs usually contain various contaminants – nails, wood, demolition debris, household refuse, and in very rare occasions asbestos… - Some state DOTs require pavement standard for non- road applications - Hot-mix plant operator preference for adding recycled asphalt shingles varies - Logistics to collect and transfer re-roofing tear-offs to hot-mix plants lacks widespread workable infrastructure

Intellectual property field is active - 17 patents and patent applications (1978 – 2007) were identified that reference products made from recycled shingles composite board, ground cover, pavement, patching… - Separately 26 patents and patent applications ( ) made claims for methods to recycle shingles shredding heating & milling hydrocarbon recovery size reduction & mixing in hot asphalt/oil

There are also those who are determined to make a difference

- - Incentives – Incentives – Incentives Federal & state DOTs - Roofing manufacturers - Roofing contractors