Thermoplastic polyolefin — or TPO — roofing is a single-ply roofing material most common on flat roofs. It’s affordable and ...

Re-roofing projects generate tremendous amounts of waste material that should be diverted away from landfills. The PVC (vinyl) roofing industry is committed to increasing the amount of post-consumer ...

Department of Civil and Environmental Engineering, Colorado School of Mines, Golden, Colorado 80401, United States ...