If you’re looking to improve your home’s energy efficiency by reducing your reliance on heating and cooling, consider spray foam insulation. This versatile insulation material is a great way to reduce the amount of energy you need to use. It can help improve your home’s overall cooling and heating performance. In this article, we’ll discuss how spray foam insulation works and how it can help you reduce your energy bills.
What is Spray Foam Insulation
Spray foam insulation, also known as spray polyurethane foam (SPF), is a type of air barrier insulation that uses a chemical-based foaming agent to create an airtight seal in the space between the insulation and the surface it’s covering. This airtight seal helps to reduce heat loss and noise transmission through the wall or roof where spray foam is installed.
You may notice many insulation choices such as fiberglass, cellulose, and others, but spray foam has emerged as one of the most energy-efficient options available. This is because spray foam insulation is easy to install and cheaper than other traditional insulation kits. Spray Foam is made up of two materials – isocyanate and polyol resin. When mixed together, the chemical reaction of these two properties makes a very effective thermal insulating material. When sprayed in place, spray foam expands up to 28-58 times its liquid volume.
This unique characteristic allows spray foam insulation to be used in applications such as residential construction, home energy improvement projects, automotive repair shops, and more! If you are looking for garage door insulation for hot climates, spray foam insulation is a very effective way to reduce your energy bill. In fact, according to the EPA, it can be up to three times more efficient than traditional insulation methods. This makes it an ideal choice for homeowners struggling with high energy costs or those who want to take steps toward reducing their carbon footprint.
So why is spray foam one of the most energy-efficient options available?
There are a few reasons why spray foam insulation is so successful. For one, it is easy to install. Additionally, the chemical reaction that occurs when spraying the foam creates an airtight seal that prevents air from entering or escaping the insulation. This makes it extremely difficult for humidity or moisture to gain access, which is another common problem with other types of insulation.
Finally, because spray foam expands up to 28-58 times its liquid volume after being sprayed in place – it becomes a very dense and effective insulation layer. On average, a single spray foam insulation layer can reduce energy costs by up to 40%. Furthermore, foam insulation does not allow air infiltration; it can also help improve the overall noise level in your home.
Category Of Spray Foam Insulation
There are two types of spray polyurethane foam insulation;
- Open Cell Foam and
- Closed Cell Spray Foam
Open Cell Foam:
Open-cell foam is a type of foam insulation made from an inflating agent, such as sodium bicarbonate, where more than half of the cells remain open. This makes the foam a softer, more flexible material than closed-cell foam insulation. This type of foam insulation can expand up to 100 times its original size, filling any gaps and air leaks. This prevents moisture or humidity from entering the insulation and can help improve the overall noise level in your home. Ref 
Closed Cell Spray Foam:
This type of foam is made from closed cells- meaning air and moisture cannot get inside the foam. Closed-Cell spray foam sealed off the moisture from the environment; this means that there are no holes or spaces between the insulation and the exterior surface of your home. This makes it incredibly energy-efficient insulation than open-cell foam spray because air and moisture can’t get in or out. And the R-value (a measure of insulation efficiency) for closed-cell spray foam is higher than for open-cell foam.
How does Spray Foam Insulation work?
Both open and closed cell spray foam insulations are used to create an air seal. And as we discussed above, spray foam insulation comprises two chemicals; isocyanate and polyol resin. When combined, these chemicals react and expand and become harden. The foam will push any air out of the way and make a very tight seal against the wall, attic, or anywhere, stopping moisture build-up. Furthermore, spray foam insulation is also heat-resistant, handling high energy costs without breaking down or losing its insulation properties.
Is Chemical Containing Spray Foam Insulation Safe to Have in My Home?
Spray foam insulation is a great option for energy efficiency in your home. It can handle high energy costs without breaking down or losing its insulation properties. However, there are health concerns around chemical-containing spray foam insulation when it is used in large amounts. You should look for products that have “low-VOC” to minimize the amount of off-gassing and odor that may be present.
How much does spray foam insulation cost?
The average spray foam insulation cost is about $2.50 per board foot. However, the price can vary depending on the product (Open or Closed cells) and where it was installed. Open Cells foam insulation costs $0.25 to a max of $1.50, while Closed-cell spray foam insulation ranges from $2.00 to $3 per board foot.
What is the lifespan of spray foam insulation?
Spray foam insulation can last for more than 80 years. At the same time, cellulose, loose-fill, foam board, loose-fill, and rock wool insulation can last up to 100 years.
Where Should You not Install the Spray Foam Insulation?
You should avoid using spray foam insulation in these areas:
- Areas where it could come into contact with water or moisture: This includes areas near sinks, showers, and crawl spaces.
- -Near electrical boxes and light fixtures: spray foam insulation can create an electric shock hazard if it comes into contact with power cables or lights.
- On the roof: open-cell spray foam insulation is not recommended on roofs because of its vulnerability to water damage.
- In closed-cavity spaces: spray foam insulation can create a health and safety hazard if it is blown into open-air by wind or ventilation systems.
- If you have a history of asthma, skin, and respiratory issues: spray foam insulation can trigger these conditions.
Last Updated on April 1, 2022 by Rifen