What Is Closed Cell Foam Insulation Made Of

Closed cell foam is made up of cells that are as the name suggests completely closed.

What is closed cell foam insulation made of.

Strong and resilient polyethylene foam is often sold as closed cell foam sheets. It is used as thermal insulation as shock absorption to dampen sound and as cushioning. It is very buoyant and is frequently found in flotation devices and other nautical equipment. The closed cell spray foam is environmentally safe class one fire rated and doesn t retain water.

Closed cell spray foam insulation s main ingredients are chemical and water blown. Open cell spray foam is lighter and has a lower r value because gases in the material escape as it cures. Polyethylene foam rolls or sheets can be used for insulation. Foam board insulation is easy to cut with a circular saw with a masonry blade or scored with a utility knife and snapped like you would drywall.

As a result of the high thermal resistance of the gas spray polyurethane insulation typically has an initial r value around r 3 4 to r 6 7 per inch. All closed cell polyurethane foam insulation made today is produced with a non hcfc hydrochlorofluorocarbon gas as the foaming agent. They also have organic chemical compounds derived from petroleum extracts. What is closed cell spray foam insulation made of.

These foams are similar to conventional polyurethane foams but are more flexible. It is this trapped gabs that behaves like an insulator. It costs more but also does a better job of controlling energy loss and energy cost. Open cell and closed cell insulation share the similarity that they are both consisted of cells that are densely packed together.

Because the cells are closed and have their own cell walls they are more rigid and trap a large amount of air. It s cheaper too though more expensive than fiberglass for the same r value. Low density open cell polyurethane foams use air as the blowing agent and have an r value that doesn t change over time. The difference is that closed cell foam is exactly that closed and has gas trapped in these cells.

Spray foam insulation is made when. Polyurethane is a closed cell foam insulation material that initially contains a low conductivity gas in its cells. The cells are pressed together so air and mositure are unable to get inside the foam. Closed cell spray foam is dense and has a high r value relative to open cell and fiberglass insulation.

This makes for more sturdy products that serve as great insulation. Because of this closed cell foam is much more rigid and stable than open cell foam. Icynene closed cell spray foam insulation s main ingredients are chemical and water blown and also have organic chemical compounds derived from petroleum extracts. To attach the insulation you can use screws with large washers a special adhesive made for adhering foam board insulation or for smaller pieces you can seal them in with caulk or spray foam.