Open Roof Valley Repair

The best way to do this is to install new metal flashing.

Open roof valley repair.

Leave the entire area to settle into place and then check your roof for leaks the next time that it rains. After the self adhering underlayment is installed across the valley a pre bent metal valley lining is installed. This metal lining can be made of any type of metal that is resistant to the effects of weather acid rain or other contaminants. For an open valley a sheet of metal usually steel sometimes copper is fastened to the roof deck.

Apply two beads of roofing cement to attach the top layer shingles to the bottom layer shingles. For a do it yourself homeowner the job is easier with the help of an. Repairing a roof valley involves removing some shingles and installing a sheet metal flashing from top to bottom in the valley. In comparison to a closed valley an open valley adds another layer of lining into the valley.

Cut corners and apply cement dub cut the top layer shingles see step 4 in open metal valley above. You may need to use the hammer to push it back into place around the flashing but you can then just place the loose asphalt on the surface. Inspect valley for holes all along joint. Open roof valley this is almost the same as the closed roof valley method except a pre bent metal valley lining is installed instead of a secondary roof underlayment.

Take the asphalt which you had previously removed from the roof valley and lay it back into place. You can patch small holes with the same type of sheet metal valley is made of. Clean surface of valley with wire brush. Also apply cement to attach the top layer shingles to each other see steps 5 and 6 in open metal valley above.

The metal is usually pre painted to best complement the shingles color blend. Most valleys use either aluminum or copper. This leaves a metal strip or line on the surface of the roof that serves as the valley line. This valley flashing material can be manufactured from any metal that will resist the effects of weather acid rain and other contaminants.

Once the shingles are installed they don t run through the valley area. After the underlayment is placed a pre bent metal valley lining is installed. Using different metal to patch valley will cause corrosion. Open valley when compared to a closed valley and open valley adds an additional layer of lining.

Roofing shingles are installed then cut and sealed where they overlap the metal channel. If your roof valley leak is an old repair gone bad consider having a professional repair the leak properly. T o repair an open valley.