When people think of a roofing underlayment they most likely will picture asphalt felt paper. Super Shield . has revolutionized the roofing industry by introducing the first underlayment that will actually work for the homeowner. Super Shield Insulation acts as not only an underlayment that will not absorb moisture but also as an insulator. Weighing only 18 lbs the 500 sq.ft. rolls are very easy to install. Installed correctly it will seal around fasteners, provide a complete vapor barrier, and stop radiant heat gain/loss. It can also be left exposed when "drying out" time is needed. No other underlayment can offer this much for the price. Homeowners will be placing a product on their roof that will pay for itself by saving them money on utility bills. While most underlayments will deteriorate over time Super Shield products will last the life of your roofing system.