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ExoAir® 220 Fluid-Applied Permeable Air Barrier Membrane is a monolithic, elastomeric membrane designed to be rolled or sprayed onto exterior above-grade wall assemblies to mitigate air infiltration/exfiltration and water penetration while remaining permeable to the passage of water vapor.
Features
  • ExoAir 220 is typically applied to exterior sheathing panels, concrete block, poured concrete or wood substrates as an air and vapor barrier material.
  • ExoAir 220 can be used with ExoAir 110, ExoAir 110AT or Dymonic® 100 liquid flashing to detail into the rough opening.
  • EXOAIR 220 is a seamless, monolithic membrane that creates a fully adhered air barrier when properly installed
  • The ability to roller or spray apply the material affords the contractor the ability to accelerate installation times compared to traditional self-adhered membrane systems.
  • The high-performance properties of the EXOAIR 220 membrane retard the migration of air and bulk water but allow water vapor to pass through the membrane. As a result, vapor permeable systems like EXOAIR 220 allow for more flexibility in the placement of the air barrier membrane in the wall design.

Specifications

Type

  • Polymer-Modified Emulsion

Color

  • Black

Solids

  • 60%

Density

  • 8.7 lb/gal

Application

  • Spray/Roller

Thickness

  • 36 mils (Dry to represent actual dry film thickness)
  • Minimum 60 mils (Wet)

Storage Temperature

  • 40° to 100° F (5° to 37° C)

Cure Time

  • 16 to 24 hr at 75° F (24° C), 50 % Relative Humidity

Application Temperature

  • If installing below 40° F (5° C), refer to Cold Weather Air Barrier Installation Technical Bulletin
  • Above 40° F (5° C) and rising

Service Temperature

  • Intermittent Exposure up to 158° F (70° C)

Maximum V.O.C. (Method 310)

  • 2 g/L

Crack Bridging (ASTM C1305)

  • Pass

Elongation (ASTM D412 Die C)

  • 900%

Tensile Strength (ASTM D412 Die C)

  • 325 psi

Adhesion (ASTM D4541)

  • Exterior Sheathing: 19 psi
  • Concrete: 28 psi

Water Penetration (ASTM E331)

  • Passed at 12 lb/ft² (575Pa)

Air Leakage of Material (ASTM E2178, Free Film Method at 75 Pa)

  • 0.0001 cfm/ft² (0.0006 L/(s•m²))

Air Leakage of Assembly (ASTM E2357)

  • 0.002 cfm/ft² @ 1.56 lb/ft² (0.012 L/ (s•m²) @ (75 Pa))

Water Vapor Transmission (ASTM E96 Wet Cup)

  • 13 US Perms

Documentation

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