Insulation
L7 Flashing by Fortifiber
This “L” shaped butyl adhesive coated in woven facer allows for more cost-effective flashing of electrical outlets. The pre-cut shape accommodates utility boxes of a variety of sizes and offers straight forward installation. Simple and durable, the L7 Flashing adhesive stays stuck at temperatures well below where other self-adhesive flashing products won’t stick, and maintains its protective properties at temperatures exceeding 225 degrees Fahrenheit.