Roof Valley Replacement

This video shows the traditional and best way to repair a lead valley on a roof.

Roof valley replacement.

A properly flashed roof valley should have an ice and water shield installed with roofing felt being properly secured over the ice and water. Roof valleys replaced roof valleys play a critical role in diverting water from your roof and into your gutter system and therefore are necessary in keeping water out of your home. One of the most appealing aspects to roof shingles running through the valley is that leaves don t get caught up in it. Install an underlayment centered in the roof valley.

Here s how to install new flashing in your roof valleys. Despite their beauty there is a specific way to install them. 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. 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.

Make sure the flashing s bottom edge is perfectly aligned with your roof s lower edge. Begin by placing the replacement piece of flashing in the valley lining up the groove in the center with the middle of the valley. And you can tar it but it s a real stop gap band aid like measure. This process will also make your roof susceptible to wind damage.

This method of lead valley repair is proven to not only be fast and safe wit. Recommended procedures of basic valley flashing installation. The right thing to do here is to pull a valley basically pull a valley apart and rebuild it. Install replacement shingles at each side of the valley such as composition shingles or wood shingles that match the existing shingles.

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. 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.