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TOPIC: Ice Buildup

Ice Dam/New Roof

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Hi, folks. I've got a brand new roof on a brand new 1860's brick rehab. Spray foamed. Conditioned attic/living space, no vents. One original box gutter. We had a helluva ice storm here as you might know, and when we thawed a bit, we found water one floor down from the roof. Evidently, ice/water got under the roof, but ran into the foam under the box gutter, and then ended up running down the inside of the brick until it found a way into the interior of the house. Neat. Now, I don't think this is normal problem. We just had a ton of ice. Still, it shouldn't have happened, imo. So, I want to address this. I suspect that since the gutter wasn't relined, no ice shield was put in place, OR it was but there was a gap of some sort between the gutter and the shield that somehow allowed water to get into the gutter soffit. Now I haven't gotten up on the ladder, to see but I'm thinking that the best course will be to line the entire gutter with rubber (as I've seen many rehabbers do in this area), and then unscrew the end of my roof and run rubber up under the metal some proscribed distance, with or without whatever "ice guard" may bet here. Then screw the metal back down. Any thoughts? Oh, a picture of the roof is here www.rehabordie.com. The ice problem was in the middle of that front gutter. TIA
Guest User

3/4/2009
I am concerned that I would want the rubber where it goes under the metal to also be worked under the underlayment that is beneath the metal so that if any condensation is ever running down the underlayment it ends up on top of the rubber rather than running into it and perhaps working its way under it.
Todd Miller
Isaiah Industries, Inc.

3/5/2009
Good thinking! I like that idea. There will almost assuredly be condensation, too. Without that, I'll have even more of the same problem, except all year round! :O I'm also thinking that it might not be a bad idea to drill a handful of holes in the bottom of my box gutter soffit, in case I get water in there again. I've got a ton of foam between it and the 3rd story living space.
Guest User

3/5/2009
Good luck with everything.
Todd Miller
Isaiah Industries, Inc.

3/10/2009