How To Fix Roof Valley

If the ice and water shield is missing then you will have to remove the shingles on both sides along the valley put ice and water shield in place and re shingle the roof.

How to fix roof valley.

Take measurements of your roof flashing most flashing is 14 inches wide but yours may vary. Check the entire roof valley carefully to locate the source of these problems. Once the roof valley has begun to leak you will need to cover the valley with flashing in order to prevent a repeat of the problem. And if they put a second layer of shingles on they brought it up the valley but they didn t replace the valley it s probably leaking and cracking and split.

Remove 8 inches of shingles at each side of the valley with a 16 inch nail bar. In summary during the installation of a closed cut valley you install the first roof plane s shingles into the valley. I have my valley custom made with water trough to help with leaking b. Move to the highest end of the valley and work your way down cleaning shingles from both sides of the valley whether they re damaged or not.

Clear any debris in the roof valley and surrounding area. Step 2 remove the shingles. And you can tar it but it s a real stop gap band aid like measure. A properly flashed roof valley should have an ice and water shield installed with roofing felt being properly secured over the ice and water.

Insert the bar under a shingle and pry upward at a. The top joinery of both valleys when they meet on the same plane of roof is shown here. It is essential to only use whole not cut shingles during this step. The right thing to do here is to pull a valley basically pull a valley apart and rebuild it.