Ice Dams/Attic ?

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Old 03-22-08, 07:58 PM
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Location: Minnesota
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Ice Dams/Attic ?

Recently had a little bit of water drip from our ceiling. 2 different spots on 2 different nights. I ventured up on the roof today and found an ice dam.
My question is what can I do to prevent this in the future.

House is a 2 story home with a no overhang roof. A dormer was added on many years ago. The pitch is very low. Not sure what it is. It is not flat but it is very easy to balance on. Shingles are around 6 years old I think.

There is also no attic access. I had the bathroom fan off the other night so I can just poke my head in to look around. Insulation looks adequate.

As far as venting.. There are 6 roof vents or so I believe. And 2 other vents on the side. Again no soffit vents as there is no overhang.

Have only been in the house for 6 months so this was our first winter here. Not really sure what our next step should be. I am looking for any ideas. Thanks
 
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Old 03-23-08, 03:25 AM
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Since the shingles are already installed, you may opt, this late in the season, to install heater grids along the edge to keep the ice dams from forming. The best way is to install the sticky rubberized underlayment across the leading edge of your roof prior to the installation of shingles. Even if the dam builds, it won't infiltrate the attic area.
 
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