How To Repair Shingle Roof Valleys

The roofer can either installed a closed valley or an open valley system.

How to repair shingle roof valleys. Place the new piece of sheet metal valley flashing in the valley with the raised center aligned with the center of. Tension also is created in shingles when they are nailed too close to the roof valleys and this stress results in premature wear and cracking causing speedy aging of and failure of the shingles. To secure the roof valley flashing nail it down carefully. These instructions should now allow you to repair a leaking roof valley on a roof with woven shingles.

Use two roofing nails per shingle. Cut each side of the flashing at the lower end to conform with the corresponding edges of the roof using sheet metal. This repair process is also the same for composition and tile roofs. Ensure ice and water protector has been installed along the valley first.

There are two predominant ways valley are built in a shingle system. Replace cracked broken or rotted shingles with the new ones you purchased. High winds sometimes blow shingles away from the roof valley particularly if the edges of the shingles are not nailed in place because of shingle strain described above. Only nail at the edges with only enough nails to.

Take measurements of your roof flashing most flashing is 14 inches wide but yours may vary. Start at the lower end of the valley. Make sure you duplicate the weave pattern of the existing roof. Then starting at the base of the.

Apart of shingle color and style shingle one of the main differences from roof to roof is the method the valleys are built. Move to the highest end of the valley and work your way down cleaning.