What is Open Cell Spray Foam?
Open cell spray foam is a semi-rigid low density foam that weighs ½ pound per cubic foot. This water blown foam is designed for indoor use only. Since the cells are open, it relies on trapping the air inside of the foam which then insulates the air seal.
When the open cell foam is sprayed into place, it expands about 120 times it’s liquid volume. Within seconds of application, it is cured into place.
Advantages of Open Cell Spray Foam
Both open and closed cell spray foam are excellent methods for insulation. Here are some of the reasons people choose open cell spray foam over closed:
- Lower cost: Open cell spray foam is generally much less expensive than closed cell spray foam.
- Better coverage: Because it expands more than closed cell, open cell spray foam is better able to completely fill a large area.
- Safer blowing agent: Instead of using a chemical as a blowing agent, open cell spray foam uses water. There are no ozone depletion chemicals such as; CFC, HCFC, fibers, VOC’s formaldehyde, or asbestos.
- Versatility: Because it is less expansive and does not release any toxic gases in the spraying process, open cell spray foam can be used as insulation in a wide variety of situations.
- Best Cost per R-value: The R-value for most open cell foams are around 3.5 to 4.5 per inch.
- Energy Efficiency: Open cell spray foam will keep your heating and cooling costs way down. It works as an incredible air seal and also provides great sound control.
Applications for Open Cell Spray Foam
Open cell spray foam can be used to insulate many different areas of your home, including the attic, ceiling, walls, and basement.
Spray foam is especially useful in attics, as it can be applied directly to either the floor: to insulate the house below, or the underside of the roof: to insulate the attic itself and stop cold air directly at the source.
Since open cell spray foam is lightweight and creates an airtight seal to keep out cold drafts, it is the perfect application for any ceiling. Open cell spray foam also works great to insulate walls, as it expands to create an airtight seal, locking warmth in and keeping cold out. When using open cell spray foam in the basement walls, it is important to make sure that the basement is properly waterproofed, as open cell spray foam is not as water resistant as closed cell.
If you want to know how well it works, look at the Heat Conduction Chart below. As you can see, with 4 inches of Sealection500 open cell spray foam reduces the heat flow 94.72%. This means that if you have your thermostat set at 68 degrees and the temperature outside was 28 degrees, only 4 inches of the open cell spray foam stops over 94% of the heat loss.
Contact us today for professional open cell spray foam insulation Kansas City. Whether you need commercial or residential spray polyurethane foam in Kansas City, we can help.