How To Construct A Scotch Valley Roof

Scotch valley scotch valley a method of constructing a variation to a rectangular plan without the use of valley rafters.

How to construct a scotch valley roof.

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 prevent water passing over the upstands there should be a gap of at least 25mm between the mortar bed and the upstand. This roof valley is a perfect example.

Snap a chalkline 2 to 3 inches past the valley center on the top layer of shingles. Then i use a construction calculator to find the correct length of each rafter. Tiles should be cut neatly to form the required open valley width and all cut pieces must be twice fixed by combination of nailing or screwing at the head and clipping at the tail. This video shows the erection procedure for a broken hip and valley roof.

Lay one and two tab shingles as you near the valley so full size shingles will run across the valley. Stop nailing 6 inches from the center. Shingle the other side of the valley the same way. To get started i need to know only two things.

Broken hip and valley roof are formed on an l shaped building when the two sides ar. To understand the concept and how all the pieces are laid out and cut i picture the roof two dimensionally in plan view.