How To Repair Shingle Roof Valleys

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How to repair shingle roof valleys.

The roofer can either installed a closed valley or an open valley system. Use two roofing nails per shingle. These instructions should now allow you to repair a leaking roof valley on a roof with woven shingles. Roofing nails instead should be a minimum of six to ten inches away from the seam to reduce the pressure on the roofing materials.

This repair process is also the same for composition and tile roofs. 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. Replace cracked broken or rotted shingles with the new ones you purchased. Place the new piece of sheet metal valley flashing in the valley with the raised center aligned with the center of.

Make sure you duplicate the weave pattern of the existing roof. Take measurements of your roof flashing most flashing is 14 inches wide but yours may vary. 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. There are two predominant ways valley are built in a shingle system.

Cut each side of the flashing at the lower end to conform with the corresponding edges of the roof using sheet metal. Move to the highest end of the valley and work your way down cleaning. Apart of shingle color and style shingle one of the main differences from roof to roof is the method the valleys are built. Follow these three preparatory steps to get ready to fix the valley leak.

Start at the lower end of the valley. Ensure ice and water protector has been installed along the valley first.