HydraShell SA UnderLayment 48" x 53.5' 2 square

It doesn’t get any better than this: HydraShell™ SUPREME SA is the best choice in high-temp, easy-to-handle, self-adhering applications. This peel and stick, self-adhering solution provides superior leak protection ideal for standard roofing areas plus valleys, ridges, coping joints, chimneys, vents, formers, skylights, and low-slope sections. Exceptionally durable and pliable, HydraShell SUPREME SA adheres to a wide variety of substrates. With a 30-year limited warranty, you can rely on Marco quality performance long-term, protecting your building investment and offering peace of mind.

The superior synthetic underlayment choice with a limited lifetime warranty.

• • High temperature ice and water protection
  • Split-back release film peels off for easy installation
  • Adheres to a variety of substrates
  • Polymer-modified asphalt gives excellent pliability
  • Exceptionally durable high-tensile/tear strengths
  • Cool Gray surface to reduce heat build-up
  • 90-day UV exposure rating
  • 30-year limited warranty
  • Made in the USA

Technical Specifications

Boxed
Roll Dimensions: 36”/67’
Roll Weight: 55 lbs
Area Per Carton: 201 ft²
Cartons Per Pallet: 30
Permeability (ASTM E96): .067 perms
Nail Sealability (D1970): Pass
Adhesion To Plywood @ 75° F (D903): >12 lbs/ft
Adhesion To Plywood @ 40° F (D903): >2 lbs/ft
Mill Thickness (ASTM D5147): 44
Flexibility At -20° F (D1970): Pass
High Temperature Rating: 240° F