Closed cell insulation is generally a sprayed in foam type insulation. To give you an idea of what closed cell foam insulation is, we will compare it to open cell foam insulation. Open cell insulation is a spray foam insulation that expands up to 120 times the volume of its liquid form when it is sprayed.
Open cell insulation has a very soft, sponge like texture. Compared to open cell, closed cell foam insulation is sturdier or harder to the touch and it doesn’t have the same expanding properties as the open cell foam insulation.
Open Cell vs. Closed Cell
Open cell insulation is called open because it is formed from a bunch of little bubbles that bust open when it cures or dries. Open cell insulation can allow water moister to penetrate it causing the growth of mold and other fungi.
On the other hand, closed cell foam insulation has completely enclosed cells that do allow water or moisture to penetrate it. Therefore, closed cell insulation does not promote the growth of mold, mildew or fungi the way open cell insulation does.
Another great advantage of closed cell insulation is that it will actually strengthen the structures that it is sprayed on. Because it is not soft like open cell foam insulation, closed cell insulation adds strength to walls and supporting structures by adding a solid mass of hardened foam to the surfaces which sort of holds it all together better and provides extra support that wouldn’t be there without the sprayed on insulation being present.
Closed cell insulation has many applications. It can be used in commercial buildings, industrial settings and private homes. You can easily spray in the closed cell foam insulation in areas such as garages, attics, rafters, walls and floors. It has been known to be used to spray underneath mobile homes also. There are numerous industrial and commercial applications. It can basically be used anywhere one would use fiberglass or loose-fill insulations.
How to Install Closed Foam Insulation
There are a couple options when it comes to installing spray closed foam insulation in your home or work place. There are a multitude of professional insulation contractors that you can hire who will come out and spray the insulation wherever you need it.
Alternatively, there is a do it yourself type of closed cell spray foam insulation you can use to do the job yourself as many of our readers prefer to do. It is known as “DIY Closed-Cell Foam Insulation”. DIY Closed-Cell Foam Insulation comes in self-contained DIY closed-cell foam insulation kits that you can easily do with little or no help at all.
All you need to do is attach to hose to the sprayer and apply. It is really simple. You just need to read all the instructions that come with the kit as they may vary slightly from kit to kit. Also they are sensitive to temperature so check the manufacturer’s directions for using and storing the product in the proper temperatures.
You should also check your local building codes for specific codes dealing with spray on foam insulation. Some local building codes do not allow the use of closed-cell spray foam insulation in attics. They say it doesn’t allow for proper ventilation and that moisture cannot escape the home. Some areas will allow it with a fan ventilation system.
The other thing you want to check is what the R-Value needs to be in the area you are applying the insulation. The product literature will tell you how thick to spray the insulation to maintain the desired R-Value.
There really isn’t much to installing it by yourself, so go for it! You don’t need any special equipment or anything crazy, just be sure to get the DIY kind and it will have what you need to get the job done. Ask your retailer how much to buy for the area you want to insulate.
The retailer will also be able to help you figure out the correct R-Value for the area you live in. Hopefully you should have a better idea of how to go about insulating your home or work and whether or not sprayed on closed-cell insulation is right for your unique situation.
See Also: How is Insulation Made