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Open vs. Closed Cell Foam Insulation

Spray foam is a popular insulation choice for residential and commercial projects alike. Many homeowners evaluating Austin spray foam contractors have heard the phrases “open cell” and “closed cell” and wondered “What’s the difference?” We believe in educating our customers, so here’s the skinny on the two types of spray foam insulation.

Comparing Open-Cell & Closed-Cell Spray Foam

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

Open-cell is a type of foam where the tiny cells are not completely closed. Open-cell foam cells are less dense and filled with air, which gives the insulation a spongy texture and a lower R-value (although it can achieve a greater R-value if not restricted by space). Low-density, open-cell polyurethane foams are similar to conventional polyurethane foams but more flexible. In general, open-cell spray foam insulation:

  • Helps provide an air barrier but doesn’t offer a water vapor barrier
  • Is frequently used for interior walls because it can help with soundproofing
  • Can be less expensive

Closed-cell foam insulation is much denser than open-cell. It has a smaller, more compact cell structure and has a higher R-value per inch. It’s also ideal for achieving a high R-value in narrower spaces. Closed-cell spray foam insulation:

  • Helps provide an air and water vapor barrier
  • Is often used in roofing projects or other outdoor applications but can be used anywhere in a home or building
  • Can be applied at very low temperatures
  • Helps provide wall racking strength in addition to impact resistance

We won’t sit here and tell you one is better than the other—it simply depends on your needs and situation. Our professionals will be able to assess your space and discuss your project, then determine the right solution.

Get a Spray Foam Insulation Pricing Estimate in Austin, TX

Hinkle Insulation installs spray foam in homes and commercial buildings old and new, working with homeowners and builders/contractors. Contact us today to discuss your project and get a free estimate!

OUR SERVICES
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Residential Insulation

We offer a wide assortment of insulation products to suit your specific needs.

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Commercial Insulation

We insulate metal buildings, warehouses and other commercial properties.

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Drywall Installation

We offer drywall installation and replacement services in the Austin, TX area.

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Window Blinds

We install 2” faux wood blinds for windows and French doors.

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Gutter Installation

No matter your gutter needs, the Hinkle Insulation & Drywall team has you covered.

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