Old Shingles may keep your Roof at risk!

Old roof shingles is the added weight to the roof. Asphalt roofing shingles are very heavy, and by stacking new shingles on to old ones you may overstress the roof. This could lead to simple stress cracks in the interior walls and ceilings of the home, to all out catastrophic failure of the roof. Low pitched roofs are more susceptible to this problem than higher pitched roofs.