Repairing A Roof Valley

T o repair an open valley.

Repairing a roof valley.

Toronto s roof repair specialists http www mrroofrepair ca show the cause of a major interior roof leak. A properly flashed roof valley should have an ice and water shield installed with roofing felt being properly secured over the ice and water. Step 2 tear down. Using different metal to patch valley will cause corrosion.

Follow these three preparatory steps to get ready to fix the valley leak. Start at the upper row of shingles at the upper end of the. Most valleys use either aluminum or copper. You can patch small holes with the same type of sheet metal valley is made of.

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. A crack in the valley can cause major damage and i. The right thing to do here is to pull a valley basically pull a valley apart and rebuild it. 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.

Clear any debris in the roof valley and surrounding area. Measure the width of the sheet metal valley flashing. This will usually occur at a seam between water barriers or in the valleys. Clean surface of valley with wire brush.

In order to stop the leak in your roof you need to get to where the leak is occurring. Take measurements of your roof flashing most flashing is 14 inches wide but yours may vary. The valley flashing laid over the joint where the two roofs meet should overlap the step flashing at least 2 in. Move to the highest end of the valley and work your way down cleaning.

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. Inspect valley for holes all along joint. And you can tar it but it s a real stop gap band aid like measure.

If leaks continue to occur from ice dams consider installing roof edge heating cables. 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.