Spray Foam Insulation

How does foam insulation work? 

We use a plural component proportioned to combine two chemicals, chemical A (isocyanate) and chemical B (polyol resin) to create an expanding foam that will adhere to and insulate almost any substrate. When these two chemicals mix in the chamber of our spray gun they immediately begin to create an exothermic reaction. The blowing agent, which is a part of the B side chemical, responds to the heat created by this exothermic reaction of the two chemicals and causes the foam to expand as it turns to a solid state and fills any cavity it is being applied to.

How long does it take?

From the time the chemicals are sprayed onto the substrate, it takes about  5-10 seconds to change from a liquid to a solid form, about 60 seconds to become tack free to the touch, and about 24 hours to become fully cured.

What's in your truck?

We run a Graco Reactor 2 e30i. One of the most significant features of our proportioned is that it has many built in fail-safes to prevent improper application of chemicals. This is important to prevent off ratio foam from being installed in your home which could lead to many issues down the road after the initial application. It is always important to know what type of equipment your spray foam installer is using and what it's capabilities are.


What type of foams do you use?

There are two types of spray polyurethane foam (SPF) that can be installed into your home (or any project). These are an open cell foam, and a closed cell foam. The open cell foam is refereed to as a .5lb foam, because it's density is one half pound per cubic foot of material. The closed cell foam is a 2lb foam, as it weighs 2lbs per cubic foot of material. Each type of foam has its own set of pros and cons, but closed cell foam is our foam of choice for many reasons.

With an open cell foam, you can achieve an R-Value between 3.5 and 4.5 per inch depending on which brand of foam you are using. You can also achieve an air barrier at a thickness of 4.5 - 5 inches of foam.

With a closed cell foam, you can achieve an R-Value between 6.5 and 7.5 per inch depending on the brand of foam, you can achieve an air barrier at just .5in and you can achieve a class 1 vapor barrier after 1.5 - 2 inches.

If you have any questions regarding a project and what type of foam might best suit your needs and budget, please feel free to contact us to speak to one of our certified technicians. We can come out to assess your project at no cost.


What type of homes can be insulated?

Spray foam can be used in new construction or for renovations, but is particularly useful in older buildings. Most older residential buildings are framed with lumber of smaller dimensions than today's newly constructed buildings and the best way to maximize your R-value in these smaller cavities is by using a closed cell foam. Also, a lot of older buildings are not built with perfect 16 on center stud bays which makes it nearly impossible to get a tight fit with a fiberglass batt. Add to that the fact that you can only achieve a maximum of an R15 in a 2x4 cavity with fiberglass, and you can do the math very quickly to see that doing a renovation job with a closed cell foam makes for a much more energy efficient house and will without a doubt pay for itself over time with the money you will save on energy costs. That being said, in order for us to insulate an older house with spray foam, we do need access to the area you would like us to spray, we can not fill cavities without the sheet rock removed from the interior of the walls as the foam reaches too high of a temperature and expands too much to fill enclosed cavities.

Which rooms can be insulated?

Any room can be insulated with spray foam as long as we have access to the areas that need to be sprayed. Any rooms below grade are recommended to be sprayed with closed cell foam in case of flooding or any potential water damage, due to the fact that open cell foam with absorb moisture.

What about my old insulation?

Old insulation would have to be removed before installation of spray foam, except in some very rare situations

which would be determined by a building inspector.

Are your installers experienced?

We use chemicals from the most reputable manufacturers in this industry and deal exclusively with one of the most reputable distributors in the northeast. We are not afraid to pay a little more for quality products in order to have that piece of mind and to pass that piece of mind on to our customers. At the end of the day, there are a lot of companies out there using good quality products, but what sets our company apart is our willingness to go above and beyond for our contractors and our customers. We take the quality and integrity of our workmanship very seriously and hold ourselves and our team members to a very high standard. Our foam installers are professionally trained and certified, and take pride in the work they are doing.

What types of safety precautions are in place?

 We ask that all contractors remain out of the area while we are spraying, and to not return into the building for at least 12 hours after application. We ask that any homeowners vacate the premises during application and do not return for at least 24 hours. We can not make you leave, but we do recommend it, especially if you have children in the home, as sensitivities can develop to the raw chemicals if you come into physical contact with them.

Is spray foam insulation safe?

In rare cases, exposure to the chemicals in raw form could potentially cause a sensitivity to the material. After the foam is fully cured it is just as safe as any other household plastic.