Can You Use Spray Foam Insulation In Existing Walls

If you are thinking about putting it in the walls of an existing home read this first.

Can you use spray foam insulation in existing walls.

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. 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. A cautionary tale from my own home. Spray foam kits are quicker and easier to use plus you get a seamless air barrier and high r value in just 1 inch.

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. But it depends on what kind. It can be sprayed or injected into walls and it expands to fill the wall cavity even the smallest crevices and eventually hardens. Spray foam is a type of insulation that expands after you spray.

Yes you can use expanding foam insulation in cavity walls. This type of insulation can be more expensive than loose fill insulation. Insulating vertical closed walls with existing fiberglass used to be impossible. 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.

The foam expands and seals deterring moisture which can create mold and pests from eating through your walls. Do you need better insulation but can t figure out how to do it without making a huge mess. With foam it green you don t need to destroy your inner walls trying to remove the existing fiberglass. Spray foam insulation is made of two chemicals that are combined to create a foam.

Foam insulation can be really good.