Photo voltaic roofing alternatives develop. Important roofing manufacturers GAF and CertainTeed have joined Tesla in introducing photovoltaic—aka photo voltaic—roofing shingles for residences. CertainTeed’s Solstice shingle seems to be additional like a traditional shingle than GAF’s Timberline design, which includes perpendicular bars throughout the shingle array. Federal tax credits... https://steelbuildingsfortmyers16148.newsbloger.com/27253293/details-fiction-and-roofing-contractor