Types of Spray Foam

closed cell spray foam

Closed cell spray foam is another form of insulation method we use. It is a medium density foam which uses a hydro-fluorocarbon as a blowing agent. It is ozone safe and contains no volatile organic compounds (VOC). The closed cell is rigid and is 2 lbs. foam per cubic foot. In this process the blowing agent is trapped inside the closed cells which helps increase the R-value of the foam. You can compare it to how Argon is used in windows to increase efficiency. This type of spray foam works well in new construction, remodels, agricultural buildings, industrial settings and outdoors with a coating.

 

When the closed cell foam is sprayed, the two part liquid expands about 30 to 40 times itself in a matter of seconds. The general R-value for most closed cell foams are usually 6 to 7 per inch and can be used as a vapour retarder after 2 inches. The closed cell foam works great in both indoors and outdoors and is also an air seal.

 

If you want to see how well Closed Cell spray foam works, take a look at the chart below. You can see that just 2 inches of closed cell spray foam stops 94.4% of heat loss. This means that if you had your furnace set at 20°C and it was -2°C outside, if you have 2 inches of foam it would stop over 94% of the heat loss in your walls. The closed cells air sealing capabilities and the thermal performance is quite impressive. You can also tell from the chart that you do not gain a lot of performance by a higher thickness, so depending on your application applying closed cell spray foam thicker may not be cost effective.

 

Clink here to view a more comprehensive breakdown of heat flow resistance.

why spray foam?

Just a few benefits of using spray foam in your home or business include:

  • Saves energy cost – 50% energy savings
  • Stops air and moisture infiltration
  • Adds strength to building structure
  • Keeps dust and pollen out
  • Makes your space more comfortable
  • Reduces capacity requirements, maintenance and wear of HVAC equipment
  • Increases the resale value of your home or investment
So who are The Foam Guys? Find out more

Open Cell Spray Foam.

Save Energy with Finco Steel Foam Insulation

Open cell spray foam insulation is a semi-rigid ½ pound per cubic foot and is low density. 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. In open cell spray foam the blowing agent is water, which helps the reaction process respond in the foam. There are NO TOXIC GASES used or released in this process. This type of spray foam works well in new construction, remodels, agricultural buildings and commercial settings.

 

When you spray the open cell foam into place it expands about 120 times itself and is a two part liquid and it cures into place within seconds. This method has the best cost per R-value of foam insulation. The R-value for most open cell foams are around 3.5 to 4.5 per inch. There are no ozone depleting chemicals such as; CFC, HCFC, fibers, VOC’s formaldehyde, or asbestos. The open cell spray foam is really good for an air seal and also for sound control. We prefer to use the open cell spray foam on above grade applications. It is Hydrophobic, so it repels water well and it doesn’t wick up water. When applied to the underside of a leaking roof deck the water will drain down through it, so it will expose the leaking area under the deck.

Both open cell and closed cell spray foam are excellent choices for insulation, but there are a few advantages to choosing open cell spray foam.

 

These advantages include:

 

  • 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.
  • Versatility. Because it is less expensive 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.
The Foam Guys - Insulation Experts

attics

Open cell spray foam greatly improves energy efficiency and will keep your heating costs down. 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.

ceilings

For ceiling insulation, open cell spray foam works very well. This is because it is lightweight and creates an airtight seal to keep out cold drafts and keep warm air in, and vice versa in the summer time.

walls

Open cell spray foam also works great to insulate walls, since it expands to create an airtight seal, locking warmth in and keeping cold out. Another benefit of using open cell spray foam to insulate walls is that it is less expensive than closed cell spray foam, making it easier for most home and business owners to afford over a large area.

basements

When using open cell spray foam in 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.

+ Attics

attics

Open cell spray foam greatly improves energy efficiency and will keep your heating costs down. 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.

+ Ceilings

ceilings

For ceiling insulation, open cell spray foam works very well. This is because it is lightweight and creates an airtight seal to keep out cold drafts and keep warm air in, and vice versa in the summer time.

+ Walls

walls

Open cell spray foam also works great to insulate walls, since it expands to create an airtight seal, locking warmth in and keeping cold out. Another benefit of using open cell spray foam to insulate walls is that it is less expensive than closed cell spray foam, making it easier for most home and business owners to afford over a large area.

+ Basements

basements

When using open cell spray foam in 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.

we’ve been at it for over 20 years. let’s get you out of the cold.