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2 Fire-resistance from ASTM E84 Class A materials that are part of a NFPA 285 compliant assembly.
3 Refer to applicable guarantees and warranties, available at siplast.com, for complete coverage and restrictions.
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Minimum AWB requirements 
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WALLcontrol Monolith VP Adhered AWB 
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WALLcontrol Reinforced Alumninum AWB 
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Product category |
Varies by assembly & climate | Permeable | Permeable | Impermeable |
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Application type |
Mechanically attached sheets | Liquid applied | Adhered sheet | Adhered sheet |
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Air control |
ASTM E1677 Materials or Assemblies for Low-Rise Framed Building Walls4 | CAN/ULC 741 & 742 ABAA evaluation ASTM E2357 tests air leakage up to 50mph and gusts up to 100mph equivalent windspeed |
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Water control |
No. 15 felt complying with ASTM D226, Type 1 |
Water-resistive barrier ICC-ES Acceptance criteria AC212 | Water-resistive barrier ICC-ES Acceptance criteria AC38 | Water-resistive barrier ICC-ES Acceptance criteria AC38 |
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Fire control |
No minimum with limited applications | NFPA 285 Compliant & ASTM E84 Class A | NFPA 285 Compliant & ASTM E84 Class A | Meets NFPA 285 exception criteria for WRB & ASTM E84 Class A |
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Temperature stability |
Varies, application commonly above 32ºF & high-temp performance starting at 122ºF (50ºC) | Applicable at 20ºF (-7ºC) and rising. Stable topsheet and adhesion performance up to 240ºF (115ºC) |
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UV resistance |
1-3 months | 12 months | 12 months | 12 months |
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Primerless application |
Often requires primer for common substrates, application temperature ranges, and lap adhesion | 3rd Party testing and approvals passes without primer application on numerous substrates | ||
4 ASTM E1677 testing tests air leakage up to 25mph and gusts up to 65mph equivalent windspeed.
* Consult updated Commercial Product Data Sheets for more details and the most recent information.
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An AWB minimizes unwanted air and water intrusion through the building enclosure, helping to protect the structure from environmental factors like rain, snow, and wind. It helps enhance durability and energy efficiency in building performance.
Air leakage can introduce moisture into the building enclosure, potentially leading to condensation, mold growth, and structural degradation. Additionally, uncontrolled air movement compromises energy efficiency by increasing heating and cooling loads, and raising operational costs.
Transition areas are critical points where air and water leakage can occur if not properly detailed, sealed, and integrated with other components. Effective AWB installation in these areas involves continuous, overlapping layers with properly designed flashing and sealants to maintain a fully enclosed barrier.
Siplast offers air and water-resistive barriers in two core material types: self-adhered sheets and fluid applied membranes. Both offer significant advantages over mechanically attached membranes and can be used on the same project to employ the unique advantages of each type. As an example, self-adhered sheet membranes are often applied to long, opaque sections of a wall assembly, while fluid-applied membranes are ideal for the more difficult-to-cover areas such as curved surfaces, openings or corners – including areas of the building with complex geometries.
Choosing between permeable and impermeable air barriers requires a careful examination of a building’s location, its intended use, and the level of exposure to certain weather conditions. For example, a commercial building located in a humid climate may require a vapor-permeable air barrier to allow moisture trapped within the walls to escape in order to prevent damage. Conversely, a building wall design with primarily continuous exterior insulation may be better suited to an impermeable barrier behind the insulation.