HydraShell™ Premium SA
One of the strongest, most reliable options in self-adhered roof underlayment available, HydraShell Premium SA has the widest functional temperature range of any self-adhered underlayment, creating a continuous water-shedding surface without nailing. It is up to four times lighter than competitive products (for easier installation) and is stronger than competitive products as well.
Step 1
Tack/secure the end of the roll with a nail. Unroll the membrane 3–6 feet.
Step 2
Carefully remove the upper release liner, align the membrane and continue to peel the release liner from the membrane. Stop frequently to press the membrane in place with heavy hand or roller pressure.
Step 3
When finished with the desired length, repeat the process at the starting point by removing the remaining poly release film and pressing the membrane in place with heavy hand or roller pressure. Side laps (horizontal laps) must be a minimum of 3 inches and end laps a minimum of 6 inches.
More Sealants
Learn about our other sealant products featuring Marco’s tested-tough performance.
Resources
Dig deep with technical tools, reference charts, installation videos and more.
