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TOPIC: General Discussion

Water coming out of soffits

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I have a new constuction log home & I have icicles coming out of my soffit vents & ontop of my roof sheathing under the metal roof. Any ideas as to where it's comming from? The roof is a 10/12 pitch, cathedral ceiling T&G pine on the inside, r38c insulation in between 2X12 rafters, sheathed with 5/8" Advantec,1x4 perlins with the metal screwed on. I also have closer strips on eves & on ridge vent.
Guest User

2/11/2007
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What did you do for ventilation and underlayment under the roof covering? The building code calls for minimim 1" of vented free air which means that you need to strap the roof vertically, then horizointally and provide intake air at the eaves and ridge. It would appear that you only strapped horizontally with 3/4" and have no underlayment to control condensation.
Allan Reid
Dura-Loc Roofing Systems, Inc.

2/12/2007
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You are correct, I have no underlayment & I only strapped horizontally. Do you think the closer strips are prohibitting any air circulation & multiplying the problem? The thought of removing the metal roof & strapping & redoing it all makes me sick to my stomache! Also I forgot to mention that the icicles are only running out of the eves on the souteast side of the roof, the side facing northwest doesn't seem to have this problem. If I do have to redo the roof, what is the recommended underlayment? 30 # paper? Also if you have a 1" air space, how do you keep insects such as bees & bats from nesting under the roof & ridge cap? All of you input is greatly appreciated.
Guest User

2/12/2007
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The building code calls for minimum felt underlayment but it is always better to use a reinforced membrane. They make closure strips out of vented material that allow air in and keep the bees out. Depending on the profile you chose there may be enough air moving up the flutes. Try installing the vented closure at the eave and ridge but it is really just a bandaid.
Allan Reid
Dura-Loc Roofing Systems, Inc.

2/13/2007
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Or copy this URL: https://www.metalroofing.com/spirit/comment/9220/find/
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