How To Repair Roof Valley Flashing

Typical valley flashing is 14 inches wide.

How to repair roof valley flashing.

Position an extension ladder against the lower edge of the roof near the valley that is repaired. First roughen the area around the hole with a wire brush or sandpaper and then clean it. Take measurements of your roof flashing most flashing is 14 inches wide but yours may vary. 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.

Plug pinholes with roofing cement and patch holes up to about 3 4 inch in diameter with a patch from the same material as the flashing. Start at the upper row of shingles at the upper end of the. The right thing to do here is to pull a valley basically pull a valley apart and rebuild it. And you can tar it but it s a real stop gap band aid like measure.

Roof valleys and flashing are simple yet critical components of any roof. Measure the width of the sheet metal valley flashing. Make sure to hire a local reputable roofing contractor to inspect and repair your valley flashing and any other part of your roof. Poorly installed flashing and or valleys is one of the most common causes of roof leaks so it s important to hire a professional with.

Follow these three preparatory steps to get ready to fix the valley leak. 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. Clear any debris in the roof valley and surrounding area.