Closed cell foam also known as the two-pound foam is one of the most energy-efficient, structurally sound, and effective insulation options characterized by a high thermal value. High-density spray foam is used for its high R-value and greater strength. As the name suggests, it is made up of completely closed components that provide a high-density cellular composition. The density of the closely packed cells ensures a high standard of insulation as compared to other traditional insulation options. The closely pressed together cells also prevent air or moisture to penetrate inside the foam hence offering a rigid and stable structure.
Around 40% of a building’s energy is wasted on average due to infiltration of air through gaps and air leaks. This wastage can be prevented by using proper insulation. The U.S. Environmental Protection Agency (EPA) has estimated around 20% of your monthly energy bills can be saved by using insulation and sealing the gaps and air leaks.
The process of application of closed cell spray foam insulation is very similar to that of open cell foam insulation. The spray nozzle is fed via two pipes carrying two liquid components (ISO and resin). The nozzle mixes the components that react together upon application and begins to expand to create foam in just a matter of seconds. The foam then fills the application area sealing the gaps and forming an air-tight barrier.
The spray foam is typically made up of ingredients like isocyanate and polyol which mix to form polyurethane. Polyurethane foam, in and of itself, is not toxic however off-gassing in the foam products may pose health hazards for the customers. However, once the ‘curing’ process is complete, which typically takes around 24 hours, there is no need to worry about off-gassing as the gas is made inert. During the curing period, it is advisable to keep out of the installation area to avoid any health risks.
Due to its effective expansion, closed cell spray foam insulation fills in the nooks and crannies providing an excellent air barrier. This results in an excellent energy-efficient environment. Research has shown that closed-cell spray foam insulation can save up to 50% of your energy on average.
As absolutely amazing as it is at insulating, closed cell spray foam isn’t that effective when it comes to blocking sound. While open cell spray foam is comparatively better at sound proofing than closed cell spray foam, neither of them are very good sound blockers. The foam sticks to the surfaces and hardens connecting the walls together which makes it easier for the sound to transmit.
Mold needs three essential elements to grow: Moisture, heat and a food source. The key factor inhibiting the growth of mold is the tight bond the closed cell foam forms to seal a place making it impervious to moisture. The foam doesn’t rot or catch rust neither is it a food source for the mold. Hence closed cell spray foam isn’t an environment where mold is likely to grow.
To the untrained eye, the spray foam application process appears deceivingly simple. Just spray on the insulating foam. Let it cure. Cover with sheetrock. Job well done. Or is it? As a pioneering force in the field of spray foam insulation for well over two decades, AirSeal Insulation Systems knows that the analysis, planning and strategy surrounding a building envelope will directly affect the outcome of every job. The understanding of structural design, material application, modern technology and environmental factors all contribute to the effectiveness of an air barrier system. In other words? There’s a serious process involved, and it’s something we make a big deal about.
AirSeal Insulation Systems proudly serves the tri-state region with distinction and has completed residential and commercial projects of all sizes in various locales.
Take a look at some of the thermal insulation projects which we have completed successfully for our customers in New York & New Jersey.
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