Monthly Archives: January 2012

What “wears out” roofs?

Exposure… Either long-term exposure to the elements (sun, water, freeze-thaw) or shorter-term exposure to damaging air pollutants and chemicals. Structural Movement… Such as building settlement or expansion/contraction not accommodated by the roofing system. Biological Growth… Such as vegetation in areas of standing water or algae. Not Fixing Problems Promptly… These can add up to a […]