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.
First clean the debris out of the valley including sawdust nails and whatever else is in there.
How to seal metal roof valley.
I have my valley custom made with water trough to help with leaking b.
The top joinery of both valleys when they meet on the same plane of roof is shown here.
That flashing is left exposed so the roof has visible lines of metal running down the valley.
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.
Low slope roofs slope less than 3 12 use tape sealant between the valley trim and the panel.
In a previous video we covered how to flash roof edges before shingling.