If you’re also experiencing high monthly energy bills, drafts coming through outlets, cold walls, and the dishes in the exterior wall cabinets are cold, then you need new or updated insulation in your walls.
RetroFoam of Michigan has more than 15 years of experience insulating thousands of existing external walls across Michigan’s lower peninsula, so we have seen it all and know how to fix it all.
In our ongoing efforts to educate homeowners, we have broken down the advantages and disadvantages of each material, the installation process, and how much each one costs.
Blown-In Cellulose Existing Wall Insulation
When it comes to adding insulation to existing walls, blown-in cellulose is one of the two main options. It is primarily made from recycled newsprint that conforms to most spaces without disturbing the structure or finish.
Pros and Cons of Blown-In Cellulose Existing Wall Insulation
Blown-in cellulose in existing walls can add a thermal insulation while providing some level of soundproofing, according to the Energy Audit Blog.
On the downside, the cellulose insulation can spill into the home through any openings in the wall cavities, like electrical sockets and furnace duct systems. Blown-in cellulose also allows for air leakage that contributes to a critical source of a home’s energy loss, as well as drafts, cold floors, and cold walls.
The size of the area to be insulated is also another major factor when determining cost.
Injection Foam Existing Wall Insulation
Injection foam is an insulation and air barrier that will seal the existing external wall cavities against air movement. Injection foam is made up of a three-part resin designed to insulate enclosed cavities and has the consistency of shaving cream.
Pros and Cons of Injection Foam Existing Wall Insulation
Injection foam insulation tends to be a more expensive option compared to traditional insulation materials, but it does a better job making a home feel more comfortable and lowers monthly energy bills. It also is a cleaner material that doesn’t produce more dust around the home and will improve indoor air quality as it keeps allergens and pollutants from entering the home.
There can be issues with injection foam if the homeowner hires a contractor who doesn’t specialize in the material. If the installers aren’t trained in how to install the injection foam area in the walls can be missed and there could even be damage to the walls.
Amanda previously has worked as a breaking news and crime reporter, TV news producer, and editor in Flint and Detroit. Throughout her career as a journalist, she has won several awards from the Detroit Chapter of Society of Professional Journalists and the Michigan Press Association.
As part of the RetroFoam of Michigan family, Amanda uses her experience as a journalist to write content that will help educate homeowners on the benefits of foam insulation.
When Amanda isn’t writing, she’s spending time with her husband and rescued huskies. She also loves knitting, making art, cooking, and hosting dinner and a movie night for friends and family.