The hog valley is much wider at the top than the bottom.
Roof hog valley.
Valleys are a prime leak area so it s important to be careful.
A hog valley is a section of roof that is usually a lower pitch or angle of roof that collects a lot of water from the other two steeper roofs that flow into it.
There is usually a wall that this valley meets at the narrow end causing water to accumulate at.
One layer each of felt underlayment mineral surfaced roll roofing and two layers of shingles.
The open woven and closed cut methods are demonstrated.
Closed cut shingle valleys work fine with strip shingles and laminated asphalt shingles.
Gaf mastering the roof chapter 12 this video demonstrates the proper installation technique for installing roofing valleys.
In either situation the leaking roof valley can be fixed by removing affected shingles and structural elements and upgrading your roof s flashing.
A flashing is a transitional roofing material that connects the roof material to some other building material or to another part of the roof.