Sealing a ridge vent
My last post was a few years ago regarding foam insulation. I ended up getting open cell foam throughout the house and underside of the roof. Great decision and no issues. Even better decision vs closed cell for my purposes because it is water permeable so I could see roof leaks. Well, yesterday we had a noreaster and I noticed a leak. It’s directly under the far end of my ridge vent. We never had issues before so I’m 99% certain it was the 30mph winds ramming the rain into the ridge vent.
Sooo, given the insulation plugs up all my attic (soffits, roof etc), my ridge vent serves no purpose other than permit leaks during nor’easters.
Instead of paying $250-500 to hire a roofer to remove and reshingle the vent, is there an easier DIY way to plug it up? Spray foam may expand too much?
All suggestions are welcome.
GBA Detail Library
A collection of one thousand construction details organized by climate and house part