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Open-cell spray foam insulation

Open-cell spray foam insulation is the most popular, affordable and easy to work with types of spray foam. The open-cell structure creates a soft, spongy type of insulation that is great for most all types of traditional areas and applications where you would normally insulate.


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Open-cell spray foam is spray-applied as a liquid, expanding to 100 times its volume. Once applied, the product cures within seconds, filling every crack and gap. The tiny cells expand at such a rapid rate that they break apart and fill with air, creating a soft, almost spongy end product. The rapid expansion of open-cell foam creates a perfect air-tight seal using less material than closed-cell foam, thereby creating a lower cost per R-Value.

Open-cell characteristics

  • R-Value of 3.9 per inch
  • Lowest cost among all types of foam
  • Excellent noise reduction and sound control
  • Never settles or sags

Common Applications

  • Stud walls
  • Attics
  • Air sealing
  • Sound control

The benefits of open-cell spray foam insulation

Home owner benefits

Whether it is whole home insulations, retro-fitting an existing attic or spraying foam in a basement, all solutions have a dramatic effect on your monthly energy consumption. Typical applications may see a result of 50% reduction in heating and cooling costs. Important to note, is not only will a great reduction in energy consumption be produced, a vast reduction in your carbon emissions will also be seen in correspondence with the reduction of energy useage.

Spray foam insulation may be the best thing for the environment in an array of environmentally-friendly products. It emits no CO2 of its own while it reduces heating and cooling related emissions by about 50% for new constructions and by even more in certain retrofit situations. Foam insulation will last for the life of the building, and will deliver peak performance. No formaldehyde, no ozone-depleting ingredients and no emissions of any kind - environmentally friendly.

Unlike more traditional methods of insulation in today’s markets, spray foam insulation is free of all HFAs, HCFCs, HFCs, and formaldehyde. Once spray foam has cured and is in place, the final product is chemically dead and contains no health risks.

Sound waves are transmitted by different media, including air. The most drastic noise dampening occurs when the home or building is completely airtight. The super soft nature of open cell foam insulation not only provides an extraordinary air seal but also absorbs secondary reverberations for excellent sound dampening properties.

According to the EPA (Environmental Protection Agency), indoor air quality is a major concern. Spray foam insulation battles this problem in two ways. Foam insulation is devoid of emissions and contaminants. It also improves the situation by nearly eliminating all unwanted moisture intrusion and related mold issues. This is also good news for people suffering from asthma, allergies and other respiratory ailments.

Home builder benefits

When making the choice to use spray foam insulation in your building projects, you will find yourself with a new sense of freedom. No longer will the insulation in a building be a roadblock. With spray foam insulation, vaulted ceilings and varying substrates are no longer worries.

The multiple benefits of open and closed cell foams gives you the luxury to use one product to solve multiple concerns from a home owner or builder. Each type of foam, open and closed cell, comes with a number of inherent benefits such as sound control, vapor barriers and structural integrity that can not be found in traditional insulation methods. Spray foam can reduce your overall labor and material costs with its multifaceted characteristics.

Unlike more traditional methods of insulation in today’s markets, spray foam insulation is free of all HFAs, HCFCs, HFCs and formaldehyde. In addition to being a chemically dead product once cured, spray foam insulation is one of the most effective methods for preventing mold in homes, giving you the comfort of knowing you’ve built a healthy and completely sustainable product for the life of the structure.

Closed-cell spray foam insulation is the only type of insulation that is actually a FEMA approved vapor retarder. In addition, the rigid nature of the product adds tremendous strength to all types of homes and buildings alike. One product can provide flood protection, prevent wind damage and uplift troubles, as well as being the most efficient, environmentally friendly option for insulation available today.

Choose to use either type of spray foam product and leave your building knowing that you can count on your insulation never settling, never sagging, and performing at the same high level from day one onward.

Check out our spray foam rigs and spray foam equipment

The XTR1 Spray Foam Rig

The XTR1 is the most popular spray foam rig from Paratus with its 16' shell, gas generator, and electric ...

The XC Mobile Spray Unit

Extreme mobility and extreme affordability are two of countless reasons that make the XC truly unique ...

The XTR2 Spray Foam Rig

The XTR2 is a 20' 14,000 GVWR bull-nose trailer built for the big jobs. Diesel power, choice of ...

The XM Mobile Spray Unit

The XTR1s is 12' + 4' V-nose trailer that is built in a shore power only configuration, but can have any ...