Photo voltaic roofing possibilities grow. Big roofing makers GAF and CertainTeed have joined Tesla in introducing photovoltaic—aka photo voltaic—roofing shingles for residences. CertainTeed’s Solstice shingle appears to be like much more like a traditional shingle than GAF’s Timberline design, which includes perpendicular bars across the shingle array. Federal tax credits https://roof62616.fireblogz.com/57935128/new-step-by-step-map-for-roofer