Description
Malarkey 401 Arctic Seal Self-Adhering Roofing Underlayment is a durable, waterproof, self-adhering underlayment made for areas of the roof most susceptible to leaks and ice damming.
It is specially formulated with a sand release agent coated, SBS polymer modified asphalt underlayment that protects against moisture seepage. It provides an extra layer of leak protection in more critical areas like roof valleys, roof edges, and roof-to-sidewall transitions where rain, snow, and ice are more apt to accumulate. It helps prevent ice damming in colder geographies. It meets all the code requirements including ASTM D226, ASTM D4869, and AC 48. It is designed for use under asphalt shingles, concrete tiles, all metal panels, shakes, synthetic shingles, and primed cedar shakes.
Key Features:
- Made with proprietary NEX Polymer Modified Asphalt for exceptional weathering and extra strength, flexibility, and durability to resist damage and last longer.
- Sheet is self-adhered (adhesive is activated by direct sunlight and radiant heat, and applied with pressure). Self-adhered roofing eliminates potentially dangerous fire hazards and unpleasant odors from the low slope roofing process.
- Modified asphalt sheets are constructed with a sand surface to improve walkability and safety, and an underside of aggressive, asphalt-based adhesive to ensure adhesion.
- The sheets are reinforced with rubber and plastic polymers on a non-woven fiberglass mat to deliver greater tear strength than conventional felt membranes for lasting durability.
- Sand surface can withstand 90 days of direct sunlight, providing a waterproof roof for longer duration installations.
- Self-sealing properties of the sheet provides protection against leaks around nails.
Specifications
60lb
Malarkey
Roofing
1/d/5/3/1d539c77de070c3195c57178ed3c794271c39fa9_401_arctic_seal_installation_guide_malarkey.pdf
Malarkey Roofing Products
401
6/1/5/d/615da091933ca84990326b37429f18f1357e74fa_401_arctic_seal_safety_data_sheet_malarkey.pdf
Underlayment
3/3/6/d/336d696f6015e84e0cf349111604aa45a760f34d_arctic_seal_flyer_malarkey.pdf
Underlayment
EA
60 lb