Is Closed Cell Insulation Safe

The building envelope should completely surround the conditioned space and the insulation needs to be in contact with the air barrier.

Is closed cell insulation safe.

In the case of the closed cell foam blue foam basf the dead fish odor went away after 3 years. Open cell spray foam offers less r value and less moisture barrier protection than closed cell. It comes in standard size 4 8 sheets and smaller sizes in many different thicknesses from 1 4 inch to 2 inches. The open cell type is more dense than closed cell and feels sponge like to the touch.

Closed cell insulation excels at keeping out moisture reducing energy costs and serving as an eco friendly insulation option. It s important to understand the differences between the two primary types of spray foam insulation. It has to do with the way the foam cures as it dries. But today icynene open cell spray foam insulation is the safest form of home insulation with almost no risk involved for homes or homeowner.

The leading variety of this foam type is the h2 foam forte mdr 210 formulation and is most commonly used for commercial applications such as warehouses and business premises. Closed cell spray foam. The american lung association also recommends it for a different reason. When moisture breathability is not a requirement closed cell varieties of foam can be used.

Closed cell spray foam insulation. We live in minneapolis so we really care about that. Dana dorsett s suggested method spraying closed cell spray foam against the underside of the roof sheathing followed by a layer of open cell spray foam on the interior side of the cured closed cell foam is generally considered safe especially if the thickness of the closed cell spray foam layer meets the minimum r value rules described. The icynene after complete removal took about six years to go away to faint levels in the spring time.

Spray foam comes in two flavors open cell and closed cell and provides both parts of the building envelope the insulation and the air barrier. Foam board insulation is easy to use and is a great diy way to add some insulation. Our builders encouraged closed cell spray foam as it is the best r factor per inch of insulation. I have now xps pink closed cell foam boards instead which don t smell and block odors and moisture coming from the wood.

Some types of thicker foam board insulation are available but they may need to be special ordered.