Since we haven’t seen a whole lot in the way of freezing temperatures and piles of snow yet this winter – It might be a good time to check your roof to prevent Ice Dams from forming when that nasty weather does arrive.
What’s an Ice Damn?
An ice dam forms when the roof over the attic gets warm enough to melt the underside of the layer of snow on the roof. The water trickles down between the layer of snow and the shingles until it reaches the eave of the roof, which stays cold because it extends beyond the side of the house. There, the water freezes, gradually growing into a mound of ice.
The flatter the pitch of the roof, the easier it is for an ice dam to get a grip. Gutters at the eaves can also trap snow and ice. If snow and ice buildup high enough in the gutter, it can provide a foundation for an ice dam.
Which parts of my home can experience damage if an ice damn forms?
- Roof Shingles and sheathing
- Wet/Moldy Insulation
- Exterior Paint
If the ice dam breaks free, it can pull shingles and gutters off with it, and it will damage anything it falls on: shrubs, windowsills, cars, pets, and people.
PREVENTING ICE DAMS
While snow can be scraped from the roof whenever it falls, doing this yourself can leave you either buried in snow or slipping off your roof! Hire a reputable contractor that has the skill, equipment and know-how to do this safely!
You can replace your shingle roof with standing seam or other metal roof. Or you can replace the bottom three feet or so of your shingle roof with a wide metal drip edge. Make sure to install a water-repellant membrane under any new roofing.
Truthfully though, these methods treat only the symptoms while doing nothing to solve the actual problem – a warm roof caused by poor insulation and venting. So what should you do?
- Seal all points where warm air leaks from the living space into the spaces immediately below the roof sheathing.
- Insulate the living space well enough to prevent conduction and convection of heat through the ceiling.
- Vent the space between the insulation and the roof sheathing, so any heat that does leak through is carried away.
Why Call NBD International?
Damage compound over time, with heat causing additional damage.
Organic compounds found in building materials such as paper, wood, and drywall provide a source of food for mold allowing progressive growth if left unattended.
NBD International Inc. has IICRC trained technicians that respond immediately to minimize your property loss.
Call us Today @ 800.929.3398