Patching A Roof Valley

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.

Patching a roof valley.

Start at the upper row of shingles at the upper end of the. Typical valley flashing is 14 inches wide. 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. Take measurements of your roof flashing most flashing is 14 inches wide but yours may vary.

Clear any debris in the roof valley and surrounding area. Position an extension ladder against the lower edge of the roof near the valley that is repaired. Follow these three preparatory steps to get ready to fix the valley leak. Move to the highest end of the valley and work your way down cleaning.