Do It Yourself Spray Foam Insulation For Crawl Space. A crawl space under a house helps protect against certain pests but a crawl space with abundant moisture can invite problems including mold wood rot and vermin. Resists moisture that can lead to mold or mildew and provides increased sound and thermal insulation. Whether it is due to the insulation falling because of moisture or because of rodents installing crawl space insulation is not a difficult job to do in terms of skill needed.
I can also tell you that 73 of all statistics are made up on the spot so please don t ask for. For many homes with a crawl space there will come the time when you need to install or even replace the insulation.
I ve been in plenty of these homes and can tell you that when spray foam is installed properly they outperform 99 of fiberglass batt insulated stick built homes.
In order to get to a perm rating of less than 1 the spray foam will need to be a minimum of 3 5. Closed cell spray foam has a perm rating of 2 6 at a thickness of 1. Spray foam is the other type of insulation for the crawl space. This can cause your insulation to fail and leave you with quite the mess.