Ice Dams Pose a Serious Risk During Winter
January 24, 2017 • winterizing your home
After a winter snow storm, some roofs look like a frozen waterfall, as snow on top melts and then refreezes when temperatures drop at night. Such so-called ice dams may look impressive, but they can also do major damage to the eaves of the roof as well as gutters and shingles and the interior of the home.
HVAC , Ice Dams , home safety , ice , winter risk , winter hazards , home hazards
Ice dams on the roof plague many houses during winter. An 
Ice dams prevent your roof from draining properly. Water leaks, mold problems and structural damage can all result, and repair costs can be high. An ice dam occurs when warm air in your attic radiates upward, melting snow on the roof. When the resulting water reaches the bottom of the roof, which is much colder because of less heat in the thin section of underlying attic, it refreezes, resulting in a dam that forces additional melted snow to pool up behind it. That standing water eventually finds its way down into your attic and living spaces.