TriVAN is such a company. Along with many certifications offered in the industry, TriVAN felt this should be a certification that we should obtain.
Most residential shingles are composed of 75% asphalt. According to the Construction Materials Recycling Association, asphalt is America’s most recycled material, and asphalt shingle and asphaltic membrane roofing and insulation products are increasingly recycled.
Here is an article by GAF Manufacturing that outlines the many benefits of working with a Certified Green Roofing Contractor.