Huskie Posted March 20, 2010 Share Posted March 20, 2010 I had my house and attached garage re-shingled a year ago last fall, no problems the first winter, but last week when the last snow on the roof was melting, I noticed the insulation between the rafters in one area was wet. Underneath that the wood was wet as well. With the heavy snow this year, would it be some problem with the vent? Any ideas? Link to comment Share on other sites More sharing options...
Skeeter21i Posted March 20, 2010 Share Posted March 20, 2010 Could be that or could also be moisture getting past the vapor barrier during the winter. That condensation will freeze on the bottom of the roof sheeting and as soon as the thaw hits you will see that condensation thaw and will be wet on the inside of the heated areas. Link to comment Share on other sites More sharing options...
vister Posted March 20, 2010 Share Posted March 20, 2010 typically, if the roof itself is leaking, intime the roof plywood will start to discolor and become softer due to moisture. most homes nowadays are sheated with OSB. this doesnt take long to break down once it becomes wet or a leak finds it. now, are you saying the wood underneath the insualtion meaning the tops of wall plates, or the bottom cords of rafters themselves being wet. if its condensation from below, it wouldnt typically get through the insulation. these leaks could be from plumbing vent tubes, or electrical wires through interior wall plates that weren't foamed around. more than likely there is a leak in the roof. ridgevent gets nailed on second to last, so holes produced by these nails dont get covered all the time. unless the ridgecap shingles werent done quite right. if there are exposed nail heads, chances are the roofer, be it yourself or a "pro" didnt apply blackjack to these nails. if you hired it out, call them and let them know, or else climb up there with a tube of blackjack and cover them nail heads up. the 5 bucks and 1/2 hour worth of work is well worth it! a cheap fix now. Link to comment Share on other sites More sharing options...
dougger222 Posted March 23, 2010 Share Posted March 23, 2010 Have heard of some turtle vents allowing snow to pass through but have heard more issues with ridge vents allowing snow in. When I roofed the rental house a few years ago removed the ridge vent and intalled turtle vents. In the case of a vault ridge vent is the only option in most cases with baffles. Link to comment Share on other sites More sharing options...
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