Roof Valley Installation

Others start with a 3 inch wide.

Roof valley installation. A roof valley is formed where two sloping roof areas intersect to create an internal roof channel that drains run off water from higher roof sections. Many roofers cut the shingles across because they say it s safer. Between the metal and the valley we re going to use tape seal to make sure that water can t lip itself underneath and roll back up underneath the valley. The valley is one of the most critical details on the roof because it collects a lot of water.

Snipping off the corners of. To secure the roof valley flashing nail it down carefully. How to do it determine cuts. In this video i show you how i do the valleys on a shingle roof.

An improper installed valley can be the cause of serious leaks. You can see that the edge of the valley has been cut so that it s in line with the edge of the eave trim. Some roofers cut the shingles parallel to the flashing s center ridge. Then starting at the base of the.

Ensure ice and water protector has been installed along the valley first. Place a piece of sheet metal under the shingles to make sure you will not damage the flashing.