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Spray Foam DIY FAQS

Have Questions about spray foam insulation and how it all works?

Take a quick moment to read through some of our most frequently asked questions. If you still have questions, please feel free to contact us for more inforamtion.


How easy is it to use one of our complete spray foam kits?

If you can use a garden hose, you can use this product. Still not convinced, watch some of our Do-it-yourself spray foam insulation videos .

How do I figure out how much spray foam I need for my project?

You can use our simple project estimator  to figure out how much foam you need for your next DIY spray foam project, due to the variety of foam applications and the different formulas for each of our spray foam products, there are many factors to consider. The spray foam project estimator will get you close but you could need more or less foam, depending on your specific needs.

When Should spray foam insulation be installed?

Spray foam Insulation should be installed at the same point during construction or renovation as traditional fiberglass insulation. (after the plumbing, electrical and HVAC ducts have been installed).  

I keep hearing the term building envelope. What it a building envelope?

The building envelope (or building enclosure) is the physical separator between the interior and the exterior environments of a building or structure. It serves as the outer shell to help maintain the indoor environment. This part of the building structure keeps the warm air in during the winter and out during the summer.

How does spray foam insulation's air seal technology work?

Our spray foam insulation sprayed on as a liquid which reacts and expands in place. This expansion action fills all of the cracks and crevasses in your wall’s exterior sheathing, creating an air tight seal.  The result is that air can no longer seep in through these cracks and as a result your structure will be less drafty and more comfortable. Air leakage can also introduce moisture into the wall cavity, resulting in wet insulation and mold and mildew. Since spray foam insulation expands into all those cracks and crevasses, this will not be a concern.

Is the use of spray foam insulation code approved?

Yes. Building codes do provide for the use of spray foam insulation. We offer several different products that can be used in different areas of your home construction or remodel. Consult your local code for more information on spray foam insulation and the use of thermal barriers.

Will I save money when I use spray foam insulation?

Yes. While the installed cost of spray foam insulation is higher then fiberglass or blown-in cellulose insulation you will instantly save money on your reoccurring energy expenses. The federal government estimates that buildings properly insulated with spray foam insulation can have their energy costs reduced by as much as 40%.

Can spray foam insulation be applied directly to electrical wiring? What about my recessed lights?

Yes. You can apply spray foam insulation directly to electrical wiring. We offer recessed light covers that offer the right amount of air circulation for cooling purposes. You simply place these covers over the lights and seal them in. It’s really that simple.

Will spray foam insulation absorb moisture?

Most moisture problems occur due to moisture entry from air leakage. Because spray foam insulation provides such an excellent air tight seal this source of moisture is virtually eliminated. Other potential sources of moisture can be excluded with proper construction techniques and materials.

What equipment is needed to apply spray foam insulation?

We offer complete spray foam kits that are ready to use right out of the box. If you purchase one of our safety kits, you will have everything you need to start foaming. For larger jobs or energy contractors check out our complete line of CPDS products. Regardless of the size of your next spray foam project we have a product that rights for you.

Will spray foam insulation strengthen my structures walls?

Yes! Our spray foam is strong and structural. Your walls will be more resistant to winds and you’ll notice less creaking and shaking when doors are closed.

Which is better, closed or open cell spray foam insulation?

Both systems offer significant advantages over fiberglass insulation, they both offer the ability to air seal, the ability to fill cracks and conform to odd shaped cavities; and ability to hold their shape over time and under adverse conditions. Only closed-cell foam has the thermal insulation value which will bring your home up to Energy Star® standards. In addition, closed-cell foam products increases the strength of you wall system (it’s approximately doubled) and increase the water resistance of your home’s exterior.

How does closed-cell spray foam provide moisture protection, yet still breathe?

Unlike cellulose and fiberglass materials, closed-cell foam is impervious to water absorption and wicking. Yet, the closed-cell structure allows the passage of water vapor to allow your home envelope to “breathe”. Liquid water has much larger particles and is unable to pass through a closed-cell foam barrier.

What innovative energy saving techniques does spray polyurethane foam allow?

 You won’t need house wrap when use use spray insulation. The air and moisture sealing effects of the spray foam insulation are far superior to what house wraps can do.  You wont need to waste your money on hose wrap if you use spray foam insulation.  Spray foam insulation allows you to encapsulate your entire exterior shell with expanding foam. This process creates conditioned space everywhere it is applied (walls, attics, basements, and crawl spaces). When duct work is run through these areas, it is kept within conditioned space, substantially increasing the energy efficiency of your home. This reduces energy loss from recessed lights and drop ceilings while minimizing any chance of frozen pipes in colder climates. Spray foam insulation will also conform to any size or shape cavity. Bay windows, oval windows, angled walls, sloped ceilings, or any other unusual framing designs can now be well insulated and tightly sealed the same as the uniform spaced stud walls. This means that you can create a consistent air barrier between you and the elements. 

What’s a thermal barrier and when is it needed?

A thermal barrier is a covering on the surface of the spray polyurethane insulation which will protect it for at least 15 minutes in the event of a fire. ½-inch gypsum wall board, such as Sheetrock®, is an approved 15 minute thermal barrier. Building codes require the installation of a thermal barrier between foam plastics (such as spray polyurethane insulation) and any occupied space. Exceptions apply in some cases; review local codes and/or confer with your local building code officials. The building code provides for an exception to the thermal barrier requirement in attics and crawl spaces where entry is made only for the service of utilities. In such cases, the spray polyurethane insulation must be protected from ignition.

What is R-Value?

R-value is the measurement of thermal resistance or the resistance to heat flow. Higher R-value means more insulation efficiency, but “air tightness” is just as important when choosing an insulation product.

Is R-Value the most important factor to conisder when choosing an insulation product?

While R-value is an important insulation factor, there are other principles to consider when determining insulation efficiency. The more insulation you install, how and where you install the insulation, and the form of insulation you choose all impact the effectiveness of the thermal envelope. While traditional insulation products may offer products with high R-values, only a spray fom insulation offers the air tightness necessary for superior insulation. Spray foam insulation offers you the ability to air seal your home in a way traditional insulation simply can not do. 

Does spray foam insulation adhere to metal studs and is it compatible with other building materials?

Yes. spray foam will adhere well to steel studs and other natural materials such as cement board, wood, etc. Since open-cell insulation will adhere to almost all surfaces, areas that do not require spray foam insulation (such as windows, doors etc.) must be protected from over spray. 

Is spray foam insulation a good sound barrier?

Yes.  Spray Foam insulation will effectively reduce noise from outside sources by sealing cracks and gaps that allow sound to travel through the walls, floors and ceilings into the building.