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Commonly Asked Questions About Retrofoam
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Commonly Asked Questions About Retrofoam

According to the U.S. Department of Energy, high-performance insulation is one of the best investments you can make in your home. Quality insulation can help to reduce your home’s heating and cooling usage and costs throughout the year.

What most homeowners don’t realize is that even if your attic is well-insulated, when other areas like your exterior walls have inadequate insulation, your energy costs can still soar.

At Budget Exteriors in Minnesota, we help homeowners insulate their exterior walls with Retrofoam injection foam insulation. In this post, we’re breaking down everything you need to know about Retrofoam and answering some of the most common Retrofoam questions. To schedule your insulation upgrades, give us a call today.

 1. How is Retrofoam different from other types of insulation?

Retrofoam is a non-toxic, odor-free tripolymer-based resin foam insulation that creates an air seal inside your home’s exterior walls when it’s injected into them. The resin gets mixed with water and a foaming, resulting in a finished Retrofoam product that looks a lot like shaving cream.

Although Retrofoam is similar to spray foam, they are not the same. While spray foam gets sprayed into open cavities and exposed walls, Retrofoam can actually be installed into existing walls from the outside of a home. The shaving cream consistency of the product easily spreads around pipes and wires to completely fill the wall cavity for an airtight insulation fill.

 2. What happens during installation?

RetroFoam is installed without the need for drywall removal or repairs. If there is a lot of loose cellulose in your walls, this will be removed during the installation process before injection.

Typically, a single piece of siding will need to be removed and then a hole will be drilled into the cavity. We’ll inject RetroFoam into the cavity, plug the hole, and replace the siding.

If your home has a brick exterior, we’ll drill through the mortar joints between studs and then re-mortar once the project is completed.

 3. Is RetroFoam safe for fires?

When it comes to home building materials like roofs, siding, and insulation, fire safety is measured in terms of fire rating. While RetroFoam isn’t fireproof, it won’t behave as a catalyst for spreading fire as a Class 1 fire-rated product.

Fire rating looks at how smoke develops as well as how fast a fire spreads using a universal standard. A Class 1 rating is the best possible rating a product can be given.

One of the key differences with RetroFoam insulation when compared to other types of insulation is that RetroFoam doesn’t require additives to achieve its high level of flame resistance. Fiberglass, cellulose, and other types of insulation frequently do require additives to meet fire safety standards.

And with RetroFoam, once the flame is removed from the wall, the product will extinguish itself.

 4. Does RetroFoam help to dampen sound?

When you can hear every little sound from outside through your thin walls, getting a good night’s sleep can feel like an Olympic event. One of the key benefits of updating a home’s insulation is a quieter home.

In many homes, the building materials that make up the walls and structure of the building can help to transfer sound. Whether it’s the sound of a train, noisy neighbors, TV from the next room over, or groaning pipes, a poorly insulated home can be anything but peaceful.

While RetroFoam isn’t completely soundproof, it can help dramatically improve the sound levels inside your home.

 5. What is the R-value of RetroFoam?

When you’re looking at insulation, one of the most important factors is R-value. A product’s R-value refers to its ability to resist the transfer of heat through conduction, also known as thermal resistance.

For example, closed-cell spray foam has an R-value of R-6 to R-7, foam board has an R-value of 4.5 to 5, and loose fill fiberglass batts have an R-value of R-2.2 to R-2.9. RetroFoam injection foam boasts an R-value of between R-4.6 and R-5.

However, although R-value refers to conduction, spray foam also prevents heat transfer through convection and radiation, so looking at R-value is only part of the equation.

 6. How does RetroFoam work?

While traditional insulation can sag, settle, shift, and lose its shape over time, RetroFoam maintains its shape through the years thanks to its unique composition. This high-performance insulation impacts both the convection and conduction of heat through your walls.

This added heat flow resistance helps your home maintain a constant temperature so your HVAC unit won’t have to work as hard.

Schedule Your Retrofoam Installation

Are you ready for an insulation upgrade? Whether your home is just too loud or you’re tired of drafty walls and outsized energy bills each month, our insulation pros at Budget Exteriors can help.

Call to connect with our Budget Exteriors insulation installers at 952.887.1613 or contact us online and get your free quote today.

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