How To Valley A Roof

Then i use a construction calculator to find the correct length of each rafter.

How to valley a roof.

Woven closed cut and open. Soup to nuts riley shows the proper way of installing a valley on a roof. Soup to nuts riley shows the proper way of installing a valley on a roof. To understand the concept and how all the pieces are laid out and cut i picture the roof two dimensionally in plan view.

Water collects in a valley to flow off the roof. 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. Roof installation how to shingle a valley hd by roofrepair101 more about roofing at. Stop nailing 6 inches from the center.

Valleys are a prime leak area so it s important to be careful. To get started i need to know only two things. The first is the pitch of the roof. Shingle the other side of the valley the same way.

Essentially there are three main ways to shingle a roof valley. 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. Your choice of valley installation method is critical because when improperly installed valleys are risks for serious leaks. Gaf mastering the roof chapter 12 this video demonstrates the proper installation technique for installing roofing valleys.

Lay one and two tab shingles as you near the valley so full size shingles will run across the valley. A roof valley is formed where two roof slopes meet. 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. Roof one side of the valley running the shingles across it.

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.