How To Seal A Metal Roof Valley

Use tape sealant between the valley trim and the panel.

How to seal a metal roof valley.

The top joinery of both valleys when they meet on the same plane of roof is shown here. How to seal metal roof valley. I have my valley custom made with water trough to help with leaking b. To seal make sure there is no debris in the valley.

Use fasteners to attach the panel to the structure making sure that there is complete compression of the sealant. Place the new piece of sheet metal valley flashing in the valley with the raised center aligned with the center of the valley from top to bottom. Best practices for sealing the metal roof valley vary based on the slope of the roof. Metal to metal connections are difficult to keep watertight long term.

This video shows the traditional and best way to repair a lead valley on a roof. Align the lower end of the raised center with the. Fold the top over the roof ridge and cut the bottom along the drip edge metal. This method of lead valley repair is proven to not only be fast and safe wit.

Using 3 layers of thermal tec s mr multi ply roof system where most of the movement occurs will provide a watertight seal in these areas. With a clean valley you can lay down some peel and stick roofing membrane. Nail each shingle and cover the head with roofing cement. First clean the debris out of the valley including sawdust nails and whatever else is in there.

Check that the roofing material is cut in a straight smooth line on each side. Open valleys have the flashing exposed and the shingles end at the flashing edges.