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.
Patch nail holes in tin roof.
Space the screws every 3 to 4 inches around the perimeter of the patch.
Apply urethane caulk using the caulk gun to the back of the square of sheet metal and place it over the.
Patch the nail or screw holes by slipping a piece of roof flashing underneath the shingle.
Press one patch over the roofing cement.
If you find any nail heads that are sticking up from the roof hammer them down and then coat the head with roofing.
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.
Patching materials for metal corrugated roofing sheets.
Once the patch has been pressed in place attach it to the surface of the metal roof panel using pan head sheet metal screws.
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.
Use the putty knife to fill the whole with putty cement.
Cut a 4 inch square out of the sheet metal using the tin snips.
Urethane roof cement is an excellent product that can help you patch holes on corrugated metal roofing.
Obtain some roofing mesh and cut out 2 identical square patches.
Wear gloves when working with sticky roofing cement.