How To Valley A Roof

Soup to nuts riley shows the proper way of installing a valley on a roof.

How to valley a roof.

Essentially there are three main ways to shingle a roof valley. To shingle out of the valley with laminated shingles lay a shingle down as a gauge and mark the corner at the bottom left and top right of the roof. A properly flashed roof valley should have an ice and water shield installed with roofing felt being properly secured over the ice and water. Shingle the other side of the valley the same way.

The first is the pitch of the roof. If the ice and water shield is missing then you will have to remove the shingles on both sides along the valley put ice and water shield in place and re shingle the roof. Woven closed cut and open. Lay one and two tab shingles as you near the valley so full size shingles will run across the valley.

Valleys are a prime leak area so it s important to be careful. Then i use a construction calculator to find the correct length of each rafter. I then move the shingle to the uppermost course on the roof plane line up the mark on the shingle with the valley center and again mark the corner. Water collects in a valley to flow off the roof.

The open woven and closed cut methods are demonstrated. Roof one side of the valley running the shingles across it. To get started i need to know only two things. For a closed valley the roofer will install the shingles onto the roof deck and extend the asphalt shingles through the area where opposing roof planes meet so that the shingles cover or close the valley area.

Soup to nuts riley shows the proper way of installing a valley on a roof. This roof valley is a perfect example. Roof installation how to shingle a valley hd by roofrepair101 more about roofing at. To understand the concept and how all the pieces are laid out and cut i picture the roof two dimensionally in plan view.

Stop nailing 6 inches from the center.