What you need to know about fluid applied water resistive air barriers

Using fluid applied water resistive air barriers offer multiple performance advantages over polymeric weather resistive barriers (building wraps), and traditional asphalt-impregnated felt or paper barriers. Fluid applied water resistive air barriers have the capability to be used in all types of wall construction, including over gypsum and cement-based sheathings, OSB, plywood, CMU and prepared concrete.

Fluid applied water resistive air barrier system composition

Fluid applied water resistive air barrier systems are composed of joint and fastener treatment products that include options for treating sheathing joints, rough openings, inside and outside corners, and small cracks. Fluid applied air barrier systems are also composed of fabrics, meshes and tapes used in conjunction with the joint and fastener treatment products to reinforce the treated areas and a coating that is spray, roller or trowel applied over the entire substrate.

Fluid applied water resistive air barrier advantages

Fluid applied water resistive air barriers provide a seamless, monolithic, durable membrane that can easily seal around penetrations, and are excellent for complex geometries and rough surfaces. Additionally, fluid applied water resistive air barriers typically offer fast application over large surfaces, seamless insulation to the building, reduced impact to the environment, long lasting performance and ease of installation.

Fluid applied water resistive air barrier installation

Proper installation of fluid applied water resistive air barriers can lead to the reduction of condensation through the wall while providing a seamless moisture barrier with no tears, holes, or lap joints. A fluid-applied barrier can also help effectively block air leakage, reduce energy costs, and increase occupant comfort. Additionally, some fluid applied water resistive air barriers can help protect the sheathing and rough openings from weather damage during and after construction. Proper installation means the barrier will not lose their effectiveness due to long-term weather exposure and will not blow off the wall during wind events.

Henry Air-Bloc Fluid Applied Air Barriers

Henry offers a complete line of fluid applied air barriers. It’s range of Air-Bloc fluid applied air barriers are available as vapor impermeable and vapor permeable options. Air-Bloc fluid applied air barriers accommodate every climate and substrate for greater flexibility depending on your project needs and offer the following benefits:

• Low VOC formulations that allow compliance with environmental regulations
• Availability as single component, with UV stability for permanent exposure
• Ability to apply with standard industry spray equipment, roller or trowel over a wide temperature range
• Availability with antimicrobial agents to defend against mold and mildew
• Compliant in various NFPA 285 assemblies

Have questions about fluid applied water resistive air barrier membranes and systems? Please don’t hesitate to get in touch with us to schedule a meeting with a trusted Henry^® Company advisor.