First clean the debris out of the valley including sawdust nails and whatever else is in there.
How to do a valley on a metal roof.
How to seal metal roof valley.
In a previous video we covered how to flash roof edges before shingling.
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.
That flashing is left exposed so the roof has visible lines of metal running down the valley.
Use fasteners to attach the panel to the structure making sure that there is complete compression of the sealant.
I have my valley custom made with water trough to help with leaking b.
An open valley relies on metal flashing for protection.
Roof valleys are like gutters with a steep pitch but the stakes are higher for valleys than they are for gutters.
Best practices for sealing the metal roof valley vary based on the slope of the roof.