How to install a metal ridge cap on an unvented metal roof with standing seam panels, according to Union Corrugating Company, which is NOT a sponsor of ProTradeCraft (though we'd welcome them!). We're curating this video because we think it is useful, succinct, and clear.
How to install a ridge cap on a standing seam metal roof:
- Field cut the z-closure to fit between the roofing panel ribs
- Apply butyl tape sealant to bottom of z-closure
- Install z-closure with pancake head wood screws three inches apart (min 4 screws per z-closure)
- Apply sealant at edges of z-closure adjacent to panel legs
- Cut a v-shape3d notch in the end of the ridge cap
- Fold edges under to flush up the crotch of the notch
- Install ridge cap by hooking hemmed edges onto z-closure
- Install pop rivets into z-closure on both sides of ridge
- Space rivets 18-inches apart the length of the ridge cap