I have my valley custom made with water trough to help with leaking b.
Standing seam metal roof dormer valley.
We carry both stock and custom trims and flashings and provide screws and other accessories specific to standing seam installation.
The panels can be roll formed at the job site or at your local roofing materials supply warehouse.
The connecting point where the two separate metal panels meet forms a vertically pointed rib or a seam that is one inch to inch and a half high.
The top joinery of both valleys when they meet on the same plane of roof is shown here.
Standing seam consists of sheet metal roofing panels joined side by side and attached to the roofing deck with concealed fasteners.
A typical standing seam panel can be approximately 12 16 and 19 inches wide.