Fixing Leaking Roof Valley

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

Fixing leaking roof valley. How to fix roof valley leaks. Re shingle roof valleys install ice and water shield under shingles or install metal roof flashing and re shingle the valley. Clear any debris in the roof valley and surrounding area. In order to lay the flashing the shingles on the roof will have to be removed.

Take measurements of your roof flashing most flashing is 14 inches wide but yours may vary. Sometimes an older home s roof is more prone to leaking in the roof valleys because of old repairs. Remove debris remove all debris from roof valleys so nothing is touching your roof. Removal of debris collecting in the valleys and gutters will allow water to quickly drain away and protect shingles and flashing.

If leaks continue to occur from ice dams consider installing roof edge heating cables. 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. Find them locally at hardware stores or home centers. Clean surface of valley with wire brush.

And you can tar it but it s a real stop gap band aid like measure. The sealants and roof pitch used can crack and chip away over time. Using different metal to patch valley will cause corrosion. 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.

Follow these three preparatory steps to get ready to fix the valley leak. You can patch small holes with the same type of sheet metal valley is made of. Most valleys use either aluminum or copper. The right thing to do here is to pull a valley basically pull a valley apart and rebuild it.