How To Install Roof Valley Boards

In this video i show you how i do the valleys on a shingle roof.

How to install roof valley boards. Install an underlayment centered in the roof valley. Align the first metal roofing panel so that it overlaps the edging by 1 2 to 3 4 of an inch and is square to the roof. It is essential to only use whole not cut shingles during this step. Lay one and two tab shingles as you near the valley so full size shingles will run across the valley.

No one of this affirmat. Install the roofing screws vertically along each rib in the panel. Rip the tops of the fascia boards to match the slope of your roof. Making the tops of your fascia boards the same angle as the roof allows you to easily place roofing material over them without creating bumps or ridges.

Roof installation how to shingle a valley hd by roofrepair101 more about roofing at. Be sure the larger edge is laid so that the small edge of the next panel will overlap it. Additional eaves closure pieces and counter battens are not required and they create a close cut appearance. Many roofers cut the shingles across because they say it s safer.

Make sure the underlayment lies smooth before you nail the top edge. Then pull off the. Set the angle of the circular saw blade to match the slope of your roof and run the saw along the top edge of each fascia board. As you install roof shingles on the second roof plane you allow them to lap over the valley on top of the first shingles.

Then install a non corrosive metal valley flashing of 24 minimum width lap successive sheets of metal flashing a minimum of 12 inches and seal laps. Soup to nuts riley shows the proper way of installing a valley on a roof. Stop nailing 6 inches from the center. Apply an approximately 3 inch width of asphalt roofing cement along the sides of flashing and embed shingles in mastic.

Soup to nuts riley shows the proper way of installing a valley on a roof. Place the first screw. In summary during the installation of a closed cut valley you install the first roof plane s shingles into the valley. Shingle the other side of the valley the same way.

Protect the roof against ice dams and windblown rain with self stick ice and water. Dry fix valley troughs are mortar free providing hidden water gulleys at the roof valleys. Stick on the underlayment. Peel off the bottom backing.