Repair Roof Valley Flashing

Then reshingle sliding metal step flashing behind the fascia board the trim behind the gutter.

Repair roof valley flashing.

You may want to carefully measure the flashing and only lift up as many shingles as you need to get that into the roof or you may want to lift up a number near to the valley in order to ensure that the roof is fully protected in the future. Traditional roofing is quite simple. A properly flashed roof valley should have an ice and water shield installed with roofing felt being properly secured over the ice and water. Repair work should never be an ongoing problem that needs babysitting.

The valley flashing laid over the joint where the two roofs meet should overlap the step flashing at least 2 in. First roughen the area around the hole with a wire brush or sandpaper and then clean it. A crack in the valley can cause major damage and i. Or perhaps you may be able to work some copper flashing under that on both sides without taking the whole thing apart.

Use the best materials and overlap them in such a way that they shed water. Repairing a roof valley involves removing some shingles and installing a. Cut bottom of flashing so the entire width of the valley flashing extends approximately 1 2 to 3 4 over the fascia trim board along eaves the following photos illustrate removal and replacement of a closed cut valley with new open metal valley. Achieving permanent flashing solutions use quality materials.

Small holes or corroded spots in flashing can be easily repaired. In other cases shingles are overlapped to make a valley and water from harsh rains can find a way under the shingles. 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. But a good roofer can sort of almost disassemble the shingles and take it apart at the valley and then rebuild that one piece of it.

If leaks continue to occur from ice dams consider installing roof edge heating cables. First your roofer will roughen the area around the hole using a wire brush or sandpaper and carefully clean it. Plug pinholes with roofing cement and patch holes up to about 3 4 inch in diameter with a patch from the same material as the flashing. Corroded spots and small holes in roof flashing can be easily repaired.

Extend entire width of flashing completely to the bottom of the roof valley. It is wise to choose flashing components that will have the same degree of longevity as the rest of your roof.