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AVSF offers both open-cell and closed-cell spray foaming services to ensure your project gets the right solution.

AVSF also offers intumescent coating tested by NFPA 286 and designed to meet IBC / IRC Code requirements  as an interior finish and 15-minute Alternative Thermal or Ignition Barrier.  This coating can be BLACK, WHITE, DARK GRAY and ICE GRAY.

Question: 

How does spray foam work?

Answer:

A two-part mixture is applied at specific temperatures and pressure to facilitate the chemical reaction.  The spray mixture expands rapidly to fill all cracks and voids and completely adheres to wood, masonry, metal, concrete, and other construction materials.

Question:

What is the difference between open-cell and closed-cell spray foam?

Answer:

Open-cell foam is soft like a pillow or sponge and works well as an air and sound insulator.  Open-cell foam is less dense than closed-cell, expanding to roughly 150 times its original liquid volume.  The R-value is roughly ≥ 3.5 per inch and forms an air barrier at ~5 inches of thickness.  Common uses of open-cell foam are walls, soundproofing media rooms, and roof decks.

Closed-cell foam is dense and expands to roughly 30 times its original liquid volume.  Due to the higher density, the R-value is roughly ≥ 6.5 per inch and forms an air barrier at only 1 inch thickness.  At 2 inches of thickness a moisture barrier is formed (moisture barriers are not possible with open-cell foam).  Closed-cell foam is the only FEMA-approved flood resistant insulation material.  Closed-cell foam can also increase the strength and rigidity of the structure, which can resistance to damage from high winds and hurricanes.