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8 Key Comparisons between Spray Foam and Batt Insulation

When it comes to insulating your home, there are many different options to choose from. Two of the most popular types of insulation are spray foam insulation and batt insulation. Both have their own set of benefits and drawbacks, so how do you know which one is right for your home? 

Here are eight key comparisons between spray foam insulation and batt insulation to help you make the best decision for your needs. 

1. R-Value 

The R-value is a measure of an insulation material’s ability to resist heat flow. The higher the R-value, the better the insulation is at resisting heat flow. 

Spray foam insulation has a higher R-value than batt insulation. In fact, spray foam insulation has the highest R-value of any insulation material on the market today.

2. Air Sealing

Another important factor to consider when choosing an insulation material is its ability to seal air leaks. Air sealing is necessary because it helps to prevent heat loss in your home.

Spray foam insulation is the better option when it comes to air sealing. That’s because spray foam expands to fill any gaps or cracks, creating a tight seal that batt insulation can’t match.

3. Moisture Resistance

When choosing an insulation material, it is crucial to consider its ability to resist moisture. Moisture can cause problems like mould and mildew, so it’s important to choose an insulation material that won’t be affected by it.

Spray foam insulation is the better option when it comes to moisture resistance. That’s because spray foam is a closed-cell material, which doesn’t allow moisture to penetrate it.

4. Allergies 

Some people are allergic to the chemicals in spray foam insulation. If you are considering spray foam insulation, be sure to ask your installer about the ingredients and whether they are known to cause allergies.

5. Cost

When it comes to insulation, the initial cost is not the only thing you should consider. You should also think about the long-term costs, such as installation and maintenance.

Spray foam insulation is typically more expensive than batt insulation. However, it’s important to remember that spray foam insulation has a higher R-value, so it will save you money in the long run.

6. Installation

Batt insulation is typically much easier to install than spray foam insulation. This is because batt insulation comes in pre-cut pieces that can be easily fit into place. Spray foam insulation, on the other hand, must be sprayed into place and can be more difficult to install. 

7. Environmental Impact

Spray foam insulation has a lower environmental impact than batt insulation because it is made from recycled materials and does not contain chemicals. 

8. Fire Safety

Spray foam insulation is more fire-resistant than batt insulation. This is because spray foam insulation is made of a material that does not burn easily. When exposed to fire, the material in spray foam insulation will char instead of burn. This char layer acts as a barrier to the fire, preventing it from spreading.


To sum it up, spray foam insulation is the better choice over batt insulation thanks to its higher R-value, air sealing ability, moisture resistance, lower environmental impact, and fire safety. However, it is more expensive and difficult to install, so you’ll need to factor that into your decision.

If you are thinking about adding spray foam insulation to your home or commercial property, get in touch with our experts at PolarTech Spray Foam. Our company is the industry leader in spray foam insulation, providing professional residential and commercial spray foam insulation services.

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