The Kwik-Plug Roof Patch makes it quick and easy to repair holes in your roof up to 8 in. x 8 in. Whether the holes were caused by vent removal, storms, or animal damage, Kwik-Plug efficiently solves the problem. This patch installs easily with roofing nails and resists cracking and weakening in all temperature extremes. The Kwik-Plug is made from durable galvanized steel and OSB for lasting service life. Overall size is 12" x 12"