Can You Use Spray Foam Insulation In Existing Walls

Insulating vertical closed walls with existing fiberglass used to be impossible.

Can you use spray foam insulation in existing walls.

Do you need better insulation but can t figure out how to do it without making a huge mess. Yes you can use expanding foam insulation in cavity walls. Spray foam kits are quicker and easier to use plus you get a seamless air barrier and high r value in just 1 inch. Expanding foam insulation has increased in popularity as the manufacturers have praised its uses and abilities and its applications have reached to include cavity walls.

This type of insulation can be more expensive than loose fill insulation. The foam expands and seals deterring moisture which can create mold and pests from eating through your walls. Spray foam is a type of insulation that expands after you spray. One of the high tech insulation products being utilized these days is a foam spray product called icynene which is a foam that starts as two liquid components a and b if you will that are heated up and sent through two hoses and meet at a tip of a gun where the magic begins.

And you don t need someone drilling ugly holes on the outside. If you are thinking about putting it in the walls of an existing home read this first. With foam it green you don t need to destroy your inner walls trying to remove the existing fiberglass. But it depends on what kind.

It protects the lining of your house and can even assist in the heating and cooling of your house during those unbearably cold or hot days. Installing spray foam in an existing finished wall is even trickier and when it can be done at all it s costlier than installing foam in new unfinished construction. A cautionary tale from my own home. Choose foam it green spray foam insulation kits and don t settle for less than you deserve.

Foam insulation can be really good.