How To Do A Valley On A Metal Roof

Use fasteners to attach the panel to the structure making sure that there is complete compression of the sealant.

How to do a valley on a metal roof.

In a previous video we covered how to flash roof edges before shingling. That flashing is left exposed so the roof has visible lines of metal running down the valley. How to seal metal roof valley. Low slope roofs slope less than 3 12 use tape sealant between the valley trim and the panel.

Best practices for sealing the metal roof valley vary based on the slope of the roof. Roof valleys are like gutters with a steep pitch but the stakes are higher for valleys than they are for gutters. The top joinery of both valleys when they meet on the same plane of roof is shown here. An open valley relies on metal flashing for protection.

First clean the debris out of the valley including sawdust nails and whatever else is in there.