Shingle Roof Valley Installation

Closed valleys are completed during shingle installation.

Shingle roof valley installation.

Shingle the other side of the valley the same way. Incorporated into the underlayment may be a self adhering ice and water shield or another type of underlayment that is a heavier gauge than the underlayment that covers the remainder of the. 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. Steep slope roofs.

The open woven and closed cut methods are demonstrated. Roof one side of the valley running the shingles across it. Snap a chalkline 2 to 3 inches past the valley center on the top layer of shingles. For longer roof performance iko strongly recommends open metal valleys.

Lay one and two tab shingles as you near the valley so full size shingles will run across the valley. This video demonstrates the proper installation technique for installing roofing valleys. In this video i show you how i do the valleys on a shingle roof. In order to shingle this kind of roof valley a roofing professional has to install both roof faces at the same time which is quite slow.

Best practices for sealing the metal roof valley vary based on the slope of the roof. The recommended flashing material is a 28 gauge galvanized metal or an equivalent corrosion resistant non. What is a closed valley roof. Before the installation of a shingle roof assembly the roofing contractor installs an underlayment over the entire roof deck.

Complete the application of underlayment and valley flashing before the roofing shingles are applied. 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. Many roofers cut the shingles across because they say it s safer. Use fasteners to attach the panel to the structure making sure that there is complete compression of the sealant.

Stop nailing 6 inches from the center. Consult the guide for your shingle brand to determine the specific method of installation required to preserve the warranty. A woven valley shingle installation has other drawbacks including that they are slow to install especially in cold weather and more difficult to repair than the other types. How to seal metal roof valley.