Arcno

Built for safer installation. Engineered for dependable protection.

Arcno synthetic underlayment is designed to provide reliable secondary protection against water intrusion and moisture exposure while making installation faster, cleaner, and safer. Its premium non-slip, wrinkle-resistant surface lays flat and provides dependable footing for roofing professionals working on steep-slope applications.

Lightweight yet highly tear-resistant, Arcno is designed for use beneath a wide range of roofing materials, including metal, tile, slate, wood, asphalt, and synthetic shingles. With UV exposure protection for up to 90 days during construction, Arcno helps protect the roof system from the elements while the project moves toward completion.

Key Advantages:

  • Non-Slip Surface – Provides improved footing and confidence during installation, particularly on steep or wet roof surfaces.
  • 20×+ Stronger Than Felt – Designed for significantly greater tear resistance than traditional felt underlayment.
  • Wrinkle-Resistant, Flat-Laying Design – Helps create a smooth, consistent surface for installation.
  • Lightweight & Wide Rolls – Provides greater coverage with easier handling and more efficient installation.
  • Up to 90 Days UV Exposure – Helps protect the underlayment during construction before the final roofing material is installed.
  • Broad Roofing Compatibility – Suitable for use beneath metal, tile, slate, wood, asphalt, and synthetic shingles.
  • CCRR Listed by Intertek – Independently evaluated for verified product performance.

Safer footing.
The slip-resistant surface helps provide secure footing during installation.

Faster installation.
Lightweight, wide rolls are easier to handle and provide greater coverage.

Protection when you need it.
Up to 90 days of UV exposure protection helps safeguard the underlaymentduring construction.

Less frustration.
The wrinkle-resistant surface lays flat for a cleaner, more consistent installation.

Greater durability.
High tear resistance helps the underlayment withstand the demands of jobsite handling.

PropertyValueUnit
Water Vapour Transmission0.03perms
Linear Dimensional Change (-2.5% to 1%)-1.7%
Tensile Strength MD68lbf/in
Tensile Strength CD65lbf/in
Tearing Strength MD 17lbf
Tearing Strength CD18lbf
Fastener Pull-Through Resistance38lbf
Hydrostatic ResistancePass
Fire Test Class A
Liquid Water TransmissionPass
Hydrostatic ResistancePass
Thermal CyclingPass
Laboratory Accelerated WeatheringPass

Available Dimension:

Width:
  • 4 ft (1.22 m)

  • 4.9 ft (1.5 m)
Length:
  • 250 ft (76.2 m)

  • 328 ft (100 m)
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