How To Seam Metal Roof

Be sure the larger edge is laid so that the small edge of the next panel will overlap it.

How to seam metal roof.

Secure the panels into the underlying material of the roof using metal fasteners or clips. Align the first metal roofing panel so that it overlaps the edging by 1 2 to 3 4 of an inch and is square to the roof. On site rollforming of the metal coil to form panels appropriately spacing clips on the seam per the manufacturer s requirements fastening the clips down to the roof deck for snap lock systems. Lay 6 inch wide butyl tape over all horizontally lapping end seams.

Position the tape with the release backing on the top side. From the ridge place each metal panel side by side. To create the seam like appearance of your roof raise the edges of the metal panels. Use polyurethane sealant between the z bar flashing and the metal roofing panel.

Aligning the panels and. Lay 3 inch wide butyl tape. Peel back the. Using a crimping tool create a crease by folding the edges together.

For standing seam it s much more complex and labor intensive and may include. Sweep the metal roofing sheets of all dirt and debris with a push broom. There are some opinions that standing seam metal roof minimum slope is 12 but it increases the possibility of leaking on the few first days of snow arrival. Install the roofing screws vertically along each rib in the panel.

Also seal the opening between z bar flashing and ribs on each end of the z bar. Place the first screw. 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. Apply sealant to the back side of the closure near the ribs and over the flanges to seal gaps.

How to seal between metal roofing sheets.