Spray Foam Insulation

spray foam insulation, soy insulation, foam attic insulation, blown attic insulation

Spray Foam Insulation

Enjoy the great environmentally benefits of this highly rated gap-filling foam insulation.

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Spray foam insulation consists of a foamed-in place insulation that is commonly applied in wall cavities, roof cavities and attic spaces.

The insulation is derived from several specialized base products, such as polyurethane and soy. As foam insulation expands to entirely and completely fill wall, ceiling and roof cavities, and it very successfully block any air leaks.

Spray foam insulation has an r-value of between 3.6 to 6.8 per inch, among the highest r-values of all insulations normally used in residential construction. It is nonflammable and meets all building code requirements.

Spray Foam Insulation

Spray Foam Insulation - Wall Cavity Installation

How to Install Spray Foam Insulation

You need to be aware that the installation of any of the spray-foam insulations, specialized equipment is required and it would be best handled by a professional installer.

An adverse effect of the polyurethane-based foams is that they are very toxic and require special protective gear as well as several days to outgas after installation.

As with any type of insulation, unless spray foam insulation is installed correctly, it will not live up to its rated energy efficiency.

Spray Foam Insulation

Spray Foam Insulation - Applying The Product

Cellulose and Batt Insulation vs Spray Foam Insulation:

There are a number of qualities associated with the use of spray foams that you ought to be aware of, as opposed to other insulation forms.

The expanding foams are an excellent option when insulating difficult to reach spaces, or areas where there are product thickness limitations.

Foams will expand once sprayed in-place, filling the wall cavity, ceiling or roof cavity. leaving no gaps to leak heat.

Another notable feature of the spray foam insulations is that it will not sag, settle or separate over time, thus maintaining it's rated energy proficiency.

Foams additionally provide an excellent bridging quality, spanning over structural members, increasing the overall assembly R-value of the wall, roof or ceiling space

Environmentally Spray Foam Insulation - Soy:

If you wish to find out a lot more on one of the great, environmentally-friendly options in the use of spray foam insulation, be sure to visit our article on Soy Insulation.

Spray Foam Insulation

Spray Foam Insulation - Specialized Equipment Require for Installation

Closed-Cell vs. Open-Cell Foam Insulation:

There are two main types of spray foam insulation, known in the industry as closed-cell and open-cell foam.

We will now examine the features of each of these types of foams.

Open-cell foams are different from the closed-cell varieties in that the open-cell is soft, much like a cushion. The cell walls of the foam bubbles are broken and air fills the spaces in the material, giving it a density of around 1/2 to 3/4 of a pound per cubic foot.

This results in the open-cell variety possessing an R-value of about 3.5 per inch of thickness.

The makeup of closed-cell foam is much higher with a density of around 2 to 3 pounds per cubic foot. Since the closed-cell foam bubbles remain in tact and are not broken, the resulting product is very rigid, even rigid enough to walk on.

The closed bubbles in the foam are filled with a special gas, which increases the insulation value of the foam insulation to around 6 per inch.

Open-cell foam insulation is a porous material that can allow air and moisture to penetrate it, while closed-cell foam insulation is non-porous, making it very difficult for water vapor and air to pass through it. The biggest difference between the two types of foam is the porosity.

Spray Foam Insulation

Spray Foam Insulation - Roof Installation

Also, due to the lower density, the open cell foams use importantly less material and resources to fill the same amount of space as does the closed-cell foam.

Closed-cell foam insulation has a much higher R-value, but its high density requires more material to fill a similar space, making it the in excess of pricey of the two.

An easy way to compare these 2 types of foams is this way: One cubic foot of closed-cell foam has approximately 6 times more raw materials than does one cubic foot of open-cell spray foam insulation.

Do not let the cost of the foam insulation products be your sole reason for not using this insulation. Remember that this product has a much higher insulation value and you can position a thinner layer to give the same insulation values as Batts, while achieving the great air-sealing and gap filling qualities.

The targeted use in the home will determine which type of foam will be the most appropriate application. If you are in need of a vapor or moisture barrier type application, you would be best off to use a closed-cell spray foam insulation, such as a below grade application.

Also, plan the use of the closed-cell product in an area where the space is restricted and you need to attain the highest R-value per inch due to space limitations.

Both of these foam products are widely used in typical home construction. Search out an installation professional who is very experienced with spray foam insulations who can partner with you to share advise as to where foams can most beneficially utilized in your home, while meeting your budgetary and energy saving expectations.