Solar roofing options broaden. Major roofing makers GAF and CertainTeed have joined Tesla in introducing photovoltaic—aka solar—roofing shingles for residences. CertainTeed’s Solstice shingle appears to be like more like a traditional shingle than GAF’s Timberline product, which incorporates perpendicular bars through the shingle array. Federal tax credits now use only https://paulinej814ylc5.answerblogs.com/profile