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Ice Dams – How to Prevent Ice Dams from Forming on Your Roof

 

What's an Ice Dam?

Anyone who lives in regions that experience snowy climate weather during the cold winter months may know all too well what ice dams are.  Ice dams are thick layers of ice that form on the eaves of houses.  These ice formations are known to cause expensive structural damages such as water leakage, which can lead to water stains on your ceiling, a buildup of mold, plaster damage, paint damage, and drywall damage.  Additionally, ice dams can also loosen roof shingles, which means out of pocket expenses needed to replace shingles and repair the roof and other structural damages your home incurs.

 

What Causes an Ice Dam?

Causes of an ice dam pertain to snowfall, which creates an accumulation of snow on the eaves of a slanted roof. If the attic and roof of your home lacks proper insulation, warm air seeps out and melts the snow, which in turn creates melt water. The melted water runs down the length of the roof, eventually creating ice dams on the eaves and guttering of the house. The eaves and guttering of homes typically lack necessary insulation and warming techniques, allowing ice to build on these colder areas. These ice dams prevent snow from melting off a roof sufficiently enough. 

Insufficient snow melt is what eventually causes water damage to the home.  The ice dam acts as a barrier so the snow that accumulates on the roof of a home will eventually cause roof and other structural damages.  These ice dams can worsen over time if left untreated.  Continued melt off from further snow falls can actually add to the ice dams, making them larger and more troublesome.  Thankfully, you can hire trained professionals to remove ice dams for you. These trained professionals have specialized steam equipment so they can quickly, easily, and safely remove these ice formations, allowing the proper flow of melt water from your roof.

 

How to Get Rid of Existing Ice Dams

There are a number of ways to get rid of an ice dam.  First, you will want to get rid of any snow accumulation on your roof.  You can use either a push broom or roof rake to do so, but be careful not to slip and fall.  Make sure all of your channels are clear to allow sufficient flow of melt water.  It is best to hire a professional to take care of ice dams for you.  They have all of the specialized equipment necessary to treat the problem quickly, efficiently, and safely.  Although you may manage the problem on your own, you run the risk of injury.

 

Products that Prevent Ice Dams

Products that prevent ice dams are those that provide your attic and roof with insulation, thus preventing any heat loss.  You will also want to buy products that plug or patch any leaks in your roof where heat escapes.  Get something that will allow you to clean snow off the roof and out of gutters and other draining channels so that you can prevent the buildup of ice dams.  Ask your local roof repair professionals for more advice on how to prevent and repair damages from ice dams.

Dave Lenane

8:40 pm on Monday, October 22, 2012

Daniel, I'm curious if it's possible to have too much insulation in the attic? When we bought our home 5 years ago, our inspector advised us to pull out insulation from the attic crawl space. Specifically he told us to pull the insulation from inside the roof itself. Does that make sense?

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Daniel Fox

7:40 pm on Tuesday, October 23, 2012

Hi Dave. It sounds like your home inspector gave you the correct information.

Massachusetts residents are eligible for the Mass Save program (more info: http://www.masssave.com/residential).

You can get a free energy assessment of your home and save 75% of the first $2,000 in energy improvements. I highly recommend this program because it's completely free for you to get an assessment of your homes insulation.

This seems like a good topic for a blog post.

Linda Worthy

9:38 am on Tuesday, October 23, 2012

Dave, I'll tell you what I know about this; it may shed some light. However, the real answer is to have an insulation company (or 2 or 3) look at your attic. Your statement you were told "to pull the insulation from inside the roof itself" suggests there is blanket insulation attached to the inside of the roof sheathing. I don't know why this would be done in an "attic crawl space". (A finished attic would be different and requires other special considerations). If you have a ridge vent, vents in the soffits are usually considered necessary. The outside air needs to be able to flow -- year round -- from the soffits up to the ridge. You need to made sure that the insulation (above the ceilings) is not stuffed so far down toward the soffits that it blocks the air from entering. If it is, you can pull it back and insert styrofoam vents in the attic between the rafters. If you are not familiar with all this, google "insulating attic" even before having a professional look at the situation. The time to get your answers to the proper insulation is before this winter sets in. I've seen ice dams do huge damage to homes. There can be different opinions on what combination of insulation and vents is/is not needed based on your particular house. Hopefully, ice & water shield was used the last time your roof was shingled. (File this under: "Things my Dad taught me").
BTW: Obama crushed Romney Monday night : )

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