What is the R value of spraying foam insulation?
Great Stuff is a closed-cell foam that comes in a single component form.Even though it's more expensive to install than open-cell foam, closed cell foam is often preferred for home insulation projects.
Is it a good thing to have great stuff?The Insulating Foam Sealant from Great Stuff is specially formulated to seal gaps and cracks, making it perfect for any project needs.
The open-cell spray foam has an R- value of around 3.8 per inch, while the closed-cells have a higher value.
The highest R-value is found in vacuum insulated panels which are approximately R-45 per inch.
Other people have said that this stuff doesn't keep mice out on its own.If you want to keep mice out, you should use Great Stuff Pestblock.
When air leaks are sealed and efficient insulation is installed, monthly energy bills can be cut by up to 20%.The initial cost of spray foam insulation is well worth it, when you consider the overall savings that will be headed your way over the long term.
The spray foam can push the door inward, making it impossible to open.Use minimal expanding foam to avoid this.It fills the space around the windows and doors with no expansion.There are cans labeled for use on windows and doors.
A cost-saving method for meeting high insulation requirements and filling in the cavity space between the rafters to the ceiling deck is blowing in fiberglass or cellulose insulation on top of open- or closed-cell spray foam.
Open cell foam is not waterproof.Closed cell foam is impervious to water.High density closed cell foams are waterproof.
Spray Foam can last the lifetime of your home.Proper long-term maintenance will allow roofing applications to last upwards of 30 years.The rigidity of spray foam insulation is maintained once it is dry.
R-13 to R-23 is the average recommendation for exterior walls, while R-30, R-38 and R-49 are common for ceilings and attic spaces.The Department of Energy has ranges for recommended levels of insulation.
Latex foams can take on water because they are open cell.Great Stuff is a closed-cell foam.When cured, it forms a water-resistant outer skin.
spray foam insulation does not attract mold.spray foam does not rot, rust or degrade.An area sprayed with foam insulation will not be a good environment for a mold colony.
The by-product of crude oil makes spray foam more expensive.The price of spray foam goes up with oil's price.It's a high performance product and the price reflects it.
There are fiberglass insulation batts and rigid foam insulation that mice chew through.The spray foam insulation doesn't represent a food source for the mice.
If you're thinking about buying spray foam insulation kits for your home, fire officials and those in the industry recommend you think again because of safety and fire issues.The spray foam is made of chemicals and needs to be handled with care.