Repairing A Leaking Roof Valley

Move to the highest end of the valley and work your way down cleaning.

Repairing a leaking roof valley.

Most valleys use either aluminum or copper. Follow these three preparatory steps to get ready to fix the valley leak. 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. 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. T o repair an open valley. If a leak is difficult to find enlist a helper and go up on the roof with a garden hose. The right thing to do here is to pull a valley basically pull a valley apart and rebuild it.

Using different metal to patch valley will cause corrosion. Clear any debris in the roof valley and surrounding area. This repair process is also the same for composition and tile roofs. You can patch small holes with the same type of sheet metal valley is made of.

Take measurements of your roof flashing most flashing is 14 inches wide but yours may vary. A properly flashed roof valley should have an ice and water shield installed with roofing felt being properly secured over the ice and water. Start low soaking the area just above where the leak appears in the house. Replace cracked broken or rotted shingles with the new ones you purchased.

Clean surface of valley with wire brush. And you can tar it but it s a real stop gap band aid like measure. Isolate areas when you run the hose. Inspect valley for holes all along joint.

For example soak the downhill side of a chimney first then each side then the top on both sides.