Hi, this is Steve from Roofer 911.
I'm on a roof in Springfield, Virginia, and the homeowner has a leak inside their garage from the ridge vent. The type of ridge vent system they have is ShingleVent II, and it's a very good system, but it's only as good as the contractor who installs it. I'll show you exactly what I mean.
When there's a heavy downpour or a wind-driven rain, the water's getting underneath these cap shingles and also through the open breather. It's finding an opening through the side of the nail that's holding the shingle in the ridge vent in place.
What the contractor should have done is before the ridge vent system is installed, they have to cut the plywood underneath, about 1 1/2 inches on each side of the ridge. Once that's done, then he should have installed ice and water shield, from say here and all the way up to underneath to where that plywood was cut.
Then you install the ridge vent, and the ice and water shield is going to seal all the nails that's holding the ridge vent and the cap shingles into place. If he would have done that, this homeowner would not be having a leak now.
What I would recommend is to take off this entire length of ridge vent which is 30 feet, install the ice and water shield, and then reinstall the ridge vent.
My name is Steve from Roofer 911, and we specialize in ridge vent leak repair and all other types of roofing repairs in Springfield and Tysons Corner in Northern Virginia. I can be reached at 703-475-2446. Thank you.
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