Repairing A Roof Valley

Inspect valley for holes all along joint.

Repairing a roof valley.

In order to stop the leak in your roof you need to get to where the leak is occurring. The valley flashing laid over the joint where the two roofs meet should overlap the step flashing at least 2 in. Take measurements of your roof flashing most flashing is 14 inches wide but yours may vary. Using different metal to patch valley will cause corrosion.

Clean surface of valley with wire brush. The right thing to do here is to pull a valley basically pull a valley apart and rebuild it. This will usually occur at a seam between water barriers or in the valleys. 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 at the upper row of shingles at the upper end of the. T o repair an open valley. Toronto s roof repair specialists http www mrroofrepair ca show the cause of a major interior roof leak. Position an extension ladder against the lower edge of the roof near the valley that is repaired.

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. And you can tar it but it s a real stop gap band aid like measure. Step 2 tear down. Climb into the rafter below the roof with a good flashlight and look around for any water intruding through the roof.

Find them locally at hardware stores or home centers. You can patch small holes with the same type of sheet metal valley is made of. Follow these three preparatory steps to get ready to fix the valley leak. If leaks continue to occur from ice dams consider installing roof edge heating cables.

Most valleys use either aluminum or copper. Move to the highest end of the valley and work your way down cleaning. Typical valley flashing is 14 inches wide. 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.

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.