3 common myths about injection foam insulation
Last updated February 13, 2026
Last updated February 13, 2026

Injection foam insulation is one of the newer insulation methods that has hit the market. Due to homeowner’s unfamiliarity to the product, misconceptions and false doubts are often spread about the product. Many of these rumors are false. Learn the truth about injection foam insulation and discover what it fits your homeowner insulation needs.
Myth: RetroFoam insulation is too expensive
The upfront costs of injection foam insulation are somewhat expensive, but it’s a necessary expense for homeowners. In the long run, insulation will help homeowners alleviate expenses such as the cost of their energy bill. Homeowners save a significant amount on their energy bills by using effective insulation methods. In addition, it is not always necessary to remove the existing insulation in enclosed spaces before applying injection foam insulation. The professionals at RetroGreen can educate homeowners what is necessary in order to properly insulate their home.
Myth: You can apply injection foam insulation yourself
Injection foam insulation should always be applied by an insulation professional. An insulation professional will assess the state of your existing walls and your home’s exterior. The professionals at RetroGreen will let you know exactly the condition of your current insulation and how the insulation installation process will happen. Injection foam insulation is often used in exterior walls where insultation is outdated. Professionals are able to apply injection foam insulation to enclosed spaces without having to remove the existing insulation or tear down any drywall.
Myth: RetroFoam insulation is less effective
Injection foam insulation is thinner than other forms of insulation, which causes people to assume that is less effective at regulating a home’s temperature. Injection foam insulation is also a great way for homeowners with older homes to fill in gaps in their existing walls. Due to injection foam insulation’s natural structure it does not settle over time ensuring its integrity for long periods of time. Furthermore, RetroFoam insulation can be injected into a wide variety of exterior materials including brick, wood lap, steel, vinyl, aluminum, stucco and more.
Injection foam insulation is an innovative insulation product that can help numerous homeowners lower their energy bills and find an ease of mind this winter. To discover whether injection foam insulation is right for you and your home, call the RetroGreen professionals today.
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Chris didn't start RetroGreen Energy because he wanted to be in the insulation business. He started it because he wanted to fix homes the right way.
After earning his BPI Building Analyst certification and Minnesota Building Contractor license, Chris spent years studying how homes perform as systems. He saw firsthand that most comfort and energy problems weren't caused by old windows or outdated furnaces — they were caused by air leakage and inadequate insulation that nobody was diagnosing properly.
In 2009, he launched RetroGreen Energy with a commitment to doing things differently. Every project would start with proper diagnostics. Every recommendation would be based on data, not sales targets. And every homeowner would get the honest truth about what their home actually needed.
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