AN UNBIASED VIEW OF ROOFING

Solar roofing options develop. Main 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 more like a traditional shingle than GAF’s Timberline model, which incorporates perpendicular bars through the shingle array. Fed