Repairing A Leaking Roof Valley

A properly flashed roof valley should have an ice and water shield installed with roofing felt being properly secured over the ice and water.

Repairing a leaking roof valley.

Clean surface of valley with wire brush. 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. For example soak the downhill side of a chimney first then each side then the top on both sides. Isolate areas when you run the hose.

If you find that this is a problem then you will need to repair your roof valley before anything serious happens such as plaster loss or even major water damage. Using different metal to patch valley will cause corrosion. Inspect valley for holes all along joint. Follow these three preparatory steps to get ready to fix the valley leak.

Most valleys use either aluminum or copper. This repair process is also the same for composition and tile roofs. If a leak is difficult to find enlist a helper and go up on the roof with a garden hose. These instructions should now allow you to repair a leaking roof valley on a roof with woven shingles.

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. Start low soaking the area just above where the leak appears in the house. And you can tar it but it s a real stop gap band aid like measure. Clear any debris in the roof valley and surrounding area.

A lead valley is a particularly difficult item to dispose of as lead is toxic and so a repair may involve simply patching up your lead roofing. Use two roofing nails per shingle. Take measurements of your roof flashing most flashing is 14 inches wide but yours may vary. You can patch small holes with the same type of sheet metal valley is made of.

Replace cracked broken or rotted shingles with the new ones you purchased.