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Retrofoam Insulation for Rim Joists

Insulating the rim joists in your home with RetroFoam leads to a reduction in energy costs, better moisture control, improved air quality, and more consistent indoor temperatures year-round.
Insulating the rim joists in your home with RetroFoam leads to a reduction in energy costs, better moisture control, improved air quality, and more consistent indoor temperatures year-round.

Why Foam Rim Joists?

Today’s homeowners are always on the lookout for ways to save energy and to save money purchasing LED lights, energy-efficient appliances, and replacing old windows and doors.

One of the MOST energy-efficient improvements that can be made is to make sure your home is properly insulated to create an air-seal that keeps your already bought and paid for air inside your home from leaking to the outside.

A very important area and often overlooked area to insulate and include in this air-seal is the rim joist.

Wait...What's a Rim joist?

You may have never heard the term “rim joist,” but more than likely, you have seen one.

Joists are the structural elements of a floor frame. Beneath the floor platform, there is a framework of perpendicular supports, or joists, that run the length and span the width of the entire floor.

At each end, the joist is butted up against two other perpendicular supports called rim joists. These rim joists help form the band or perimeter of the floor’s framework.

How Do I Know If My Rim Joists Need RetroFoam?

Do You Feel A Draft Near
the Rim Joists?

If you put your hand near the rim joists and feel air come through, you are getting air loss or air infiltration through the joist area.

Do You Have Condensation Build-up Around the Rim Joists?

Look closely at your rim joists to see if there is a build-up of condensation or increased mold or mildew growth. If you see any of these, your insulation is costing you money.

You Have No Insulation Anywhere on the Rim Joists

Joists without insulation are much more common than you would think. Take a look at the rim joists for condensation, mold, or mildew. Do you feel any drafts? If you do, you need foam insulation.

Foam Insulation For Rim Joists FAQ's

Foam insulation does the job better, meaning that it creates that thermal barrier you need to establish the air seal. Also, it does not retain moisture, thereby eliminating moisture build-up, mold, and mildew growth.

RetroFoam of the Carolinas foam is designed to be one-and-done. This means that you won’t have to add to it or replace it. Each of our installation projects comes with a transferable lifetime warranty.

The existing insulation will need to be removed before the installation of the foam. However, RetroFoam of the Carolinas will take care of this for you.

Let's Talk Foam

Fill out this form and we’ll reach out to you within one business day.

The conversation should last as no more than 10-minutes. We’ll ask you some questions that will help us understand your insulation needs and to put together an estimate.

fill out this form and Start on your path to a more comfortable home and lower energy bills.