As evident by the name, open-cell foam is constructed with tiny interconnected bubbles that have a low R-value ranging between R-3.5 and R-4. Open cell spray foam insulation has a lower R-value and higher permeability.
Low-density spray or open cell has a sponge-like texture that gives it the flexibility to be applied to almost every structure. Although it can accommodate long-term creep and seasonal movement, it’s not advisable to make use of open-cell spray foam in damp environments like crawlspace or basement.
After applying open-cell spray foam insulation, it starts to fill the cracks and gaps in the area applied. It absorbs the moisture just like a sponge but decreases R-value during the process. Open cell spray foam is ideal to fill out wall and ceiling cavities but its low R-value can’t hold up to confined space.
If you are looking the most affordable spray foam insulation, open-cell spray foam will definitely be your choice.
Creating a chemical reaction by blending two chemical compounds together with an application nozzle, closed cell spray foam provides a superior vapor barrier at a high R-value.
Closed cell spray foam comes in two formats – single-component and two-component. Canned foam is an example of single-component whereas large-scale spray foam jobs use two-component foam.
Due to a high R-value ranging from R-6 to R-7.1 per inch, closed-cell spray foam is recommended for most insulation projects. Blocking moisture transmission, providing air sealing and high insulating value makes closed cell spray foam insulation the choice of the majority.
Closed cell spray foam is ideal for small spaces that require the highest R-value possible or where flooding or moisture is a threat. Crawlspace or basement, closed cell covers it all as it’s a flood-resistant material.
No matter which type of insulation you choose, Spray Foam Insulation Grand Rapids has your back. From spray foam insulation for pole barns to spray foam attic insulation, we are here to make your buildings more reliable, comfortable and energy-efficient.