Spray Foam Air Barriers

Spray Foam Air Barriers

Building Envelope

Spray foam, when applied to certain minimum thicknesses (about 1.5” for closed-cell foam and 3.5-5.5” for open-cell foam) will form an air-impermeable, air-barrier material. When properly installed in a well-designed building envelope, SPF plays a key part in creating air barrier assemblies and systems. For more information on air barriers, visit the Air Barrier Association of America (ABAA) at www.airbarrier.org. ABAA provides a material specification for SPF under ABAA document 07263.
At Pro-Seal, we are believers in creating a building envelope to maximize the benefits of your spray foam. By totally sealing your facility, you are taking advantage of every angle to save energy and create a comfortable, green environment.

Air barrier systems should be:

impermeable to air flow

continuous over the entire building enclosure or continuous over the enclosure of any given unit

able to withstand the forces that may act on them during and after construction

durable over the expected lifetime of the building

Research shows that without an air barrier, insulation cannot deliver optimal building energy efficiency or occupant comfort. This is why air barriers are now a critical part of code and industry standards such as ASHRAE 90.1 and the International Energy Conservation Code for Commercial Energy Efficiency and air leakage testing requirements for commercial buildings are appearing.


Closed Cell Spray Foam meets all of the above requirements and more.

Air Barrier Examples