Wood is a great example of a product used for building which can absorb water but it's still used and limited to non water contact applications. ft. Closed cell foam for insulation applications range in density from 1.7 lb./cu. Seems like you wouldnt want to seal something susceptible to mold growth but maybe thats just me. ft. to support traffic and loads better. Foam Insulation Porosity – Vapor Barrier Issue Open cell foams typically weigh in at 0.4 to 0.5 lb./cu. Houston Bros Spray Foam Insulation Demonstrating Open Cell and Closed Cell Houston Bros Spray Foam Insulation. Open cell is more susceptible to mold and mildew but its expanding so it can hermetically seal an area.

But even closed cell foam can and will absorb water and it can even wick up open or closed cell through capillary action. Closed cell is denser, better insulating. Open cell foam has an R-value of about 3.5 to 3.7 per inch, while closed cell foam has an R-value of about 6 per inch. The higher the density the foam, the heavier, or stronger it becomes. Id go with closed cell If an installer was to install the incorrect cell type foam it could cause the insulation to work ineffectively. Now lets get to it. ft. to 2.0 lb./cu. Importance of Knowing the Difference Between Open Cell vs Closed Cell Spray Foam Insulation. Open Cell Vs Closed Cell Foam. Loading... Unsubscribe from Houston Bros Spray Foam Insulation… It is important to be aware of the difference between open cell vs closed celled spray foam insulation. If it was in water contact applications it would need to be pressure treated or something like this to prevent moisture absorption. It seems quite a few readers have questions about the difference between open cell and closed cell foam insulation.Understanding the difference between open cell and closed cell foam insulation is the most important step in determining which product is best for your next insulation project.. ft. Roofing applications typically use a 2.8 to 3.0+ lb./cu.

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