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.

How to do a valley on a metal roof.

In this video we ll flash the valley. 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. Roof valleys are like gutters with a steep pitch but the stakes are higher for valleys than they are for gutters.

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. 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.