FIBER GLASS PREVENTS "WICKING" OF MOISTURE UNDERNEATH COATING! This means that Pace Products made with fiber glass will last much longer than ordinary coatings using cheap "fillers". Moisture is the deadly enemy of roof life. It becomes dangerous when it gets underneath the roof mat. As long as the coating and roof mat offer a solid barrier resistant to penetration, there is no problem. When a break develops, even an opening the size of a pin prick, moisture creeps in. Roof protection begins to break down. Cheap fillers provide easy access for water to funnel down the roof mat. This is a gradual process. It takes months to complete the process of drawing moisture underneath the film of coating. This action of fillers can be compared to the wick in an old fashioned oil lamp. Once the fillers start wicking water under the film of coating, roof protection is lost. Breaks in the coating and roof mat occur causing leaks. Heat from the sun turns the trapped moisture into steam which in turn forms blisters which further weaken the roof mat. This cycle of deterioration cannot occur with Pace Products made with fiber glass. Fiber glass is not tubular. It cannot absorb moisture. It cannot funnel or carry water through and under the roof coating. And in Silverleaf aluminum roof coating, there is one more important and definite advantage with fiber glass. "Non browning". Since fiber glass does not wick moisture, it also does not act a as wick or carrier for asphalt. Many cheaper aluminum coatings brown out a few months after application. Cheap fillers are the culprit. It brings up the brownish asphalt through the aluminum pigment. Fiber glass in Silverleaf prevents this!