Is cutting a slit in the ridges of a standing metal roof allowed to bend the metal? Doesn’t seem to be OK.
Are you asking because the roof substrate was not flat or because the roof had a concave bow to it?
If it was a flat roof that wasn’t flat, it should have been shimmed appropriately to accept the standing seam metal.
If it had a bow to it, you need a special machine to bend the metal so you don’t just go around cutting slits in the standing seam which make an entrance for water. That would be a defect in the installation.
Thanks. They bent the metal roof because the roof pitch changed. I wrote up the slits in the standing seams for the reason you mentioned. Thanks again.
This is a project I did in 2006, standing seam copper roof. There were no slits in the ribs of this one. LOL:wink:
Gary, that looks like an aluminum pan roof in that photo, carport or patio cover.
(Still wrong of course)