So your home isn’t a new build, but you want to add spray foam insulation? Not a problem! The MPI Foam team installs spray foam insulation in existing walls to improve energy savings, temperature control, and overall home comfort.

Many homeowners wonder whether spray foam can be added to existing walls because it expands during installation.

These are the steps we follow when adding spray foam insulation to existing walls:

1.    Assess the area to be insulated

First, one of our spray foam experts will assess the area you want insulated to confirm that spray foam is the right choice. We often insulate crawl spaces and attics in residential homes.

2.    Determine if drywall needs to be removed

In most cases, we remove a small portion of the drywall so we can apply the spray foam. We make minimal cuts to keep the installation clean and seamless. This allows us to reach every small gap and cavity without taking down the entire wall. Insulating even the smallest areas improves coverage and boosts energy efficiency.

3.    Spray insulation, control the expansion, trim the excess

When we apply spray foam to existing walls, we use precise measurements to control expansion. If too much foam expands behind drywall, it can cause bubbling or cracks. Even in walls without drywall, we still trim excess foam to ensure a snug, clean fit between building materials.

For our complete spray foam installation process, please click here.

How does the addition of spray foam insulation help your home?

Additionally, spray foam insulation helps improve the following:

• Energy savings: Enjoy energy efficiency and lower bills as spray foam foams air and moisture barriers to protect your home.
• Temperature control: Keep the draftiness and hot Carolina humidity outside for regulated temps inside for a cool and cozy summer.

Whether you’re buying a new to you house that needs more insulation or your home is due for an insulation upgrade, the MPI Foam team is here to assist.

Get a quote for insulating your existing walls today.