Malarkey Arctic Seal Self-Adhering SBS Polymer Modified Underlayment, 2 Squares, 195 Sq Ft Roll

This is a Malarkey Arctic Seal self-adhering ice and water barrier underlayment made with Flexor SBS polymer modified asphalt. Each roll covers 195 sq ft, equal to 2 squares, and weighs about 60 lbs. It pairs with Malarkey shingle systems as a leak barrier at eaves, valleys and penetrations.

Key Features:

• Self-adhering: Self-adhering membrane bonds to the deck without nails in the lap area.
• SBS modified: Flexor SBS polymer modified asphalt provides flexibility and sealing around fasteners.
• Ice and water barrier: Functions as an ice and water shield at vulnerable roof areas.
• 195 sq ft roll: One roll covers 195 sq ft, listed as 2 squares.
• Tested standards: Applicable standards include ASTM D5147 and ASTM D1970.
• 10-year warranty: Backed by a limited 10-year warranty as stated by the manufacturer listing.

Specifications Table:

Coverage & How Much You Need:

Each roll covers 195 sq ft (2 squares). Plan rolls by dividing the protected area, such as eaves and valleys, by 195 sq ft and allow for laps per the manufacturer’s installation instructions.

Fit and Compatibility:

Designed for use under Malarkey asphalt shingle systems as an ice and water barrier; it can also serve as a leak barrier in other approved asphalt roofing assemblies per local code. Starter shingles, shingles and other system components are sold separately.

Frequently Asked Questions (FAQ):

Q: How much does one roll cover?
A: One roll covers 195 sq ft, listed as 2 squares.

Q: Is it self-adhering?
A: Yes, the membrane is self-adhering with Flexor SBS polymer modified asphalt.

Q: Where should it be installed?
A: Commonly at eaves, valleys, ridges, penetrations and other vulnerable areas as an ice and water barrier.

Q: What standards does it meet?
A: Applicable standards listed are ASTM D5147 and ASTM D1970.

Q: How much does a roll weigh?
A: Each roll weighs about 60 lbs.

Q: Is there a warranty?
A: The listing states a limited 10-year warranty.

Expert Verdict Reviewed by the SuperArbor Pro Desk

Use Arctic Seal as the leak barrier at eaves and valleys where ice damming is a concern, and extend it up walls and around penetrations for continuous protection. Apply to a clean, dry deck within the manufacturer’s temperature range and roll the laps firmly for a watertight bond. Pair with matching Malarkey shingles and starter for a full-system installation.

Self-adhering membranes are slippery, especially on slopes or when wet; wear proper fall protection and roof-appropriate footwear during installation.

Order the Malarkey Arctic Seal self-adhering SBS underlayment roll for leak protection at your roof’s most vulnerable areas.