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From the Rooftop Blog

Metropolitan Roof's From The Rooftop Blog keeps you up to speed on how to choose and maintain the best roof for your home or business.

 

Filtering by Tag: winter roof care

Ice Dams: Stop Them in Their Tracks

Kathleen Finn

Ice dams are a stealthy enemy of your roof. Look out for this quiet menace that can wreak havoc on your roof and inside your house. An ice dam is created when heat escapes through the roof from the attic and melts the bottom layer of snow that frosts your roof in winter. Heat that collects in the attic warms the roof but only up to the eave line. At this juncture, the melting snow transforms into a stubborn dam that keeps additional water from flowing off your roof.

Why should you care? The constant moisture that the dams lock in affects frame members, roof shingles, soffits and sheathing by leading to rot. If your insulation takes on water, it can become compacted and ineffective. Shingles can loosen, gutters can get torn off and water can back up into the house causing mold and mildew. Ice dams can happen with as little as 1” of snow coupled with sub-freezing temperatures for an extended period.

To prevent ice dams, you need to warm your roof:

  • Beef up the insulation in your attic.
  • Couple that with lots of circulating air in the attic. Good ventilation carries heat and moisture to the outside.
  • Make sure to plug up any air leaks by adding flashing around chimneys, sealing and insulating ducts, and caulking penetrations around electrical cables and vent pipes, with sealant.

Give us a call if you are battling ice dams. We can help you with preventive maintenance.

3 Tips for Winter Roof Care

Kathleen Finn

It’s getting cold out! Take some time to give your roof a pre-winter check-up with these three steps.

1. Check your attic to make sure it has the proper ventilation. If not, moisture can build up and lead to mold, mildew, or ultimately rot and structural degradation.

2. Clean out your gutters, and remove debris from the roof. Don’t let leaves, tree branches and other detritus gather on your roof. This keeps unnecessary moisture on the roof and blocks gutters, which keeps the rain and melted snow from flowing off the roof.

3. Avoid ice dams by taking some preventive steps. Ice dams build up when snow melts, runs down the roof and refreezes near the edge. These occur because of varying roof temperatures – warmer in some spots and colder in others. To prevent the dams, aim for the same temperature throughout the rooftop. Increase attic ventilation, add insulation and seal off all leaks. This will help distribute the heat and even out your roof’s overall temperature.