How To Do Valleys Three Tab Roofing

Quick guide how to install an open valley.

How to do valleys three tab roofing.

Snap a chalkline 3 in. After snapping the guide line between marks install the shingles with one corner on the line. Extend the 3 tab. From the valley and you re ready to complete the valley.

Ensure ice and water protector has been installed along the valley first. In this video i show you how i do the valleys on a shingle roof. Unroll a section of 36 inch wide flashing material over the valley starting at the bottom of the valley and. Regardless of the method you choose do not drive nails within 6 inches or so of the valley center or you will provide an unwanted pathway for water.

Asphalt shingles roofing how to install valley by roofrepair101 more about roof installation at. No one of this affirmat. Secure the flashing material to the roof s felt paper with 1 inch. Open metal closed cut and woven.

There are three ways to roof valleys. Many roofers cut the shingles across because they say it s safer. Only nail at the edges with only enough nails to. All three work well but check which is preferred by your local building department.

A chalkline snapped between this mark and the lower mark forms my guide line. Snap two chalk lines from the ridge to the eaves 8 cm apart increasing in width by 1 cm per meter towards the eaves. Then starting at the base of the. Trim the shingles to these lines and cut a 5 cm triangle off the top corner to direct the water into the valley.

Center the flashing material on the valley. I always weave my first course.