Hi, it's Steve, I'm Roofer911.
I'm on your roof and the leak that you have inside the sunroom is right about in this area here. It's very possible the leak could be coming from up above and I noticed the way they did the valley, here, they put nails too close to the valley centerline and that's something you never do.
Even though there's a problem here, that's not going to cause the water to travel this way but, in this section here, this could cause water to settle inside the sunroom back. It can go back even as far as six feet. What I'd recommend is to change this valley, here, install ice and water shield which is a rubber membrane. It will be fully adhered to the metal flashing and then we'll re-shingle this area.
Also, directly above, you have a ridge vent. If the vent is not sealed underneath, that can also attribute to the leak because underneath that ridge vent, the wood sheeting is cut approximately one and a half inches on each side of the ridge and that's so the hot air inside the attic can go straight up and then escape through the sides of the vent.
I noticed the way they installed the vent was wrong. They cemented the seams and there's really not that much of an overlap and the same thing over here. I could see that there must have been a leak here one time because they put silicone and cement on top of this.
What we'll do is ... I would highly recommend to change the ridge vent. You can see, I'm directly above the area where you have the leaks. All the shingles in this area here are good, so nothing here is attributing to that leak below, except for this vent.
I noticed with these two vent pipes, one of them is installed incorrectly and I'll show why. They cemented it, but here, the water can channel its way inside here and go underneath the flashing of the vent pipe and then you'll have a leak.
Also, the collar here needs to be sealed because it's a loose fit. Now you definitely have a leak here. You can see the pipe flange is completely deteriorated so the water's seeping inside the attic and the reason why you don't know you have a leak, for now, is only because the insulation on the floor in the attic is absorbing the water. Once the insulation becomes saturated, then that's when you're going to notice water damage.
Let me show you something here. We can walk on the sunroom but only on the rafters and also down the middle of the ridge. If we step in the middle of the rafters, then we're coming through.
What I really recommend is to clean off a lot of this old cork and then we're going to re-seal it with polyurethane. It's a much, much better bond and you can see over here, right in this area here, you can see that the sealant is deteriorated and also back over there as well.
All right, my name is Steve. I'll have a proposal emailed to you very shortly. Thank you.
Roofer911 provides roof inspection and roof repair services in all areas of Sterling, VA. Call us today for professional roofing advice and assistance.
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