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. 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. Valleys are a prime leak area so it s important to be careful. 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. 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.

The first is the pitch of the roof. Then i use a construction calculator to find the correct length of each rafter. Stop nailing 6 inches from the center. Lay one and two tab shingles as you near the valley so full size shingles will run across the valley.

Woven closed cut and open. Shingle the other side of the valley the same way. The open woven and closed cut methods are demonstrated. Your choice of valley installation method is critical because when improperly installed valleys are risks for serious leaks.

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

Water collects in a valley to flow off the roof. Essentially there are three main ways to shingle a roof valley. To get started i need to know only two things. A roof valley is formed where two roof slopes meet.

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.