How To Do A Valley On A Metal Roof

Roof valleys are like gutters with a steep pitch but the stakes are higher for valleys than they are for gutters.

How to do a valley on a metal roof.

The top joinery of both valleys when they meet on the same plane of roof is shown here. I have my valley custom made with water trough to help with leaking b. Use fasteners to attach the panel to the structure making sure that there is complete compression of the sealant. That flashing is left exposed so the roof has visible lines of metal running down the valley.

Some homeowners do not like the look of open valleys while others feel the metal accentuates the roof s shape particularly if copper or painted flashing is used. Best practices for sealing the metal roof valley vary based on the slope of the roof. Low slope roofs slope less than 3 12 use tape sealant between the valley trim and the panel. An open valley relies on metal flashing for protection.

In a previous video we covered how to flash roof edges before shingling.