How to Prevent Ice Dams
This season creates special challenges for homeowners. Ice can wreak havoc on many a homeowner, particularly the often pretty, yet deadly Ice Dams.
An ice dam refers to ice that has formed along a roof’s edge. The dam of ice blocks additional water and the pooling water backs up and finds pathways into a home’s interior. This water may cause deterioration and decay to interior wood and plaster, drywall or other insulation materials. Once an ice dam has forced paths into a home, the roof becomes more susceptible to future ice dams and water damage.
Too much heat rising from the home to warm the roof is the most frequent cause of ice dams. The process occurs unevenly with the warmer area at the higher part of the roof melting the snow and then the cooler, lower area, particularly the roof edge, permitting the water to refreeze and then accumulate. Inadequate insulation lets too much heat escape into the attic and this creates a warmer roof. Improper ventilation creates moisture and heat buildup due to the lack of air movement. (more…)