Photo voltaic roofing possibilities grow. Significant roofing producers GAF and CertainTeed have joined Tesla in introducing photovoltaic—aka solar—roofing shingles for households. CertainTeed’s Solstice shingle looks more like a conventional shingle than GAF’s Timberline design, which incorporates perpendicular bars over the shingle array. Federal tax credits now apply only to solar https://roofer26075.blog-kids.com/27032555/roofing-fundamentals-explained