Urethane roof cement is an excellent product that can help you patch holes on corrugated metal roofing.
Patch nail holes in tin roof.
The screws should be applied within 1 inch of the edges of the patch so that they apply uniform pressure to the edges and to the sealant beneath the patch.
Once the patch has been pressed in place attach it to the surface of the metal roof panel using pan head sheet metal screws.
Patch the nail or screw holes by slipping a piece of roof flashing underneath the shingle.
Small nail holes left behind from old vents satellite dish brackets or anything previously attached to the roof can allow water to enter and cause damage for years before leaking is noticed.
Apply the cement carefully with a putty knife until you ve sealed the hole completely.
How to repair nail holes in a metal roof step 1.
If you find any nail heads that are sticking up from the roof hammer them down and then coat the head with roofing.
Use a piece of similar style corrugated roofing to patch holes.
Cut the piece large enough to cover the hole and 6 inches of the surrounding roofing each way using sheet metal cutters.
Space the screws every 3 to 4 inches around the perimeter of the patch.
Cut a 4 inch square out of the sheet metal using the tin snips.
Obtain some roofing mesh and cut out 2 identical square patches.
If possible get the most inexpensive pair that you can find and.
Press one patch over the roofing cement.
Wear gloves when working with sticky roofing cement.