Q: About 15 years ago, we had a company install a prefabricated sunroom with tall windows on three sides, supports made of white polycarbonate and a roof of transparent, fluted polycarbonate. Falling ...

TPO roofing is a relatively inexpensive rubber roofing material that’s most often used on commercial buildings. TPO stands for Thermoplastic Polyolefin; it’s made primarily from recycled rubber, and ...