What this means is that it will not allow moisture to pass through the foam.
Difference between open cell and closed cell spray foam insulation.
As you may have expected open cell spray foam is similar to closed cell in nature.
While most closed cell spray foams will be above 6 0 per inch open cell is much lower at 3 6 to 3 8 per inch range.
Open cell tends to be roughly 0 5 lb cu.
Closed cell foam is roughly four times as dense as open cell for insulation applications.
Both icynene open cell and closed cell spray insulation are effective insulators with both working as barriers for air leakage.
Open cell will expand as soon as it s applied making it the perfect foam for hard to reach areas.
The main differences between open and closed cell foam are moisture permeability r value and flexibility.
It just has a lesser r value.
Open cell foam is not a moisture vapor barrier and will allow moisture to pass.
In density whereas closed cell ranges from 1 7 to 3 0 lb cu.
Generally speaking open cell foam is better suited for residential applications specifically above grade in exterior walls roof lines attic floors and areas that need soundproofing.
Ft of foam material is weighed.
When it comes to insulating a home whether that s a roof insulation or floor insulation it is ideal to use icynene open cell spray foam.
To ascertain foam density one cubic foot cu.
Closed cell foam is a moisture vapor barrier.
Most open cell foam has a density of about 5 pounds per cubic foot.
However open cell and closed cell have their different uses.
Closed cell spray foam is an incredible product below grade in your basement or crawl space because of its ability to block moisture see below.