Roof Valley Replacement

Ideally nails should be placed at least six to ten inches away from roof valley seams as nails placed too close to roof valleys will draw moisture through the roofing material causing advanced aging.

Roof valley replacement.

Install an underlayment centered in the roof valley. This video shows the traditional and best way to repair a lead valley on a roof. Here s how to install new flashing in your roof valleys. This method of lead valley repair is proven to not only be fast and safe wit.

Then install a non corrosive metal valley flashing of 24 minimum width lap successive sheets of metal flashing a minimum of 12 inches and seal laps. Align the lower edge of each shingle with the lower edges. A properly flashed roof valley should have an ice and water shield installed with roofing felt being properly secured over the ice and water. 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.

The right thing to do here is to pull a valley basically pull a valley apart and rebuild it. Despite their beauty there is a specific way to install them. This process will also make your roof susceptible to wind damage. Recommended procedures of basic valley flashing installation.

Addressing the valley detail before work begins will allow you to consider the possibilities and ultimately get the appearance and functionality you want in your roof system. If you have decided to have a professional roofing contractor complete your roof replacement be sure to discuss with them how they will address the valley detail. Often roofing nails are placed too close to roof valleys. And if they put a second layer of shingles on they brought it up the valley but they didn t replace the valley it s probably leaking and cracking and split.

Begin by placing the replacement piece of flashing in the valley lining up the groove in the center with the middle of the valley. Make sure the flashing s bottom edge is perfectly aligned with your roof s lower edge. Install replacement shingles at each side of the valley such as composition shingles or wood shingles that match the existing shingles.