Installing Foam Walls: Your Options and Successes

Foam is an excellent material to insulate and seal your walls. Rigid foam boards are workable because of a very high R-value, resistance to water, and air sealing. Spray foam can also be used in a wide variety of ways. Both are good choices for walls as they provide excellent insulation properties that make them worth the investment. This article discusses foam wall installation, including rigid foam wall installation and spray foam wall installation, so you can decide the option that’s best for you!

What Is Foam Wall Installation?

Foam wall installation is installing foam boards on walls.

Foam is a versatile material and can be used in many ways. Spray foam insulation, for example, has been effective at sealing leaks and reducing the need for air conditioning during hot summer months. This same foam also makes an excellent choice when installing foam walls! 

Types Of Foam Wall Installations

There are three foam installations that include rigid foam wall installation, spray foam wall installation, and a combination of the two. 

Rigid foam board can be installed using adhesives like polyurethane or silicone to create a smooth finish on drywall panels. Another option is installing rigid foam boards over wire mesh as insulation in lieu of drywall. 

A third option is spraying foam insulation over a foundation wall or walls to create the desired thickness of the foam. The foam can be sprayed on drywall panels as well and will expand while drying to form an airtight layer that seals out moisture vapors from below-grade surfaces in concrete slabs or block foundations. This foam insulation can also be sprayed into wall cavities, or against the exterior of foam, sheets to reinforce a vapor barrier.

Rigid Foam Wall Insulation

Rigid foam board installation involves using rigid foam to cover all sides of a room’s exterior and interior surfaces.

Rigid foam walls also have excellent soundproofing properties because they are dense and form an airtight layer that seals out moisture vapors from below-grade surfaces in concrete slabs or block foundations. Rigid foam is more affordable than spray foam insulation but less durable because it can be damaged by flame, water, impact on a foam board, or damage to the foam’s surface.

Rigid foam board wall installation is a good option for retrofitting an old building or adding insulation to new buildings. Spray foam walls are also a versatile choice and can be used in many different ways, such as insulating the garage, K-12 classrooms, residential basements, and more! 

Spray Foam Wall Insulation

Spray foam installations involve spraying foam in tight spaces such as gaps where the foundation meets the ground, around pipes and wires, or at the top edge of an attic (called “crown foam”).

Spray foam wall installation occurs by spraying polyurethane foam insulation foam into an enclosed area. The foam expands and creates a permanent insulating wall that is resistant to water, air leaks, mold growth, and pests! Spray foam can also be applied in layers for increased soundproofing, fire resistance ratings (class A or B), and other benefits.

Spray foam insulation is denser than rigid foam and has excellent soundproofing properties in addition to R-value and water resistance. The foam used for spray foam walls should have an R-value that matches the requirement for your climate zone.

Rigid Foam vs. Spray foam: Which Wall Insulation Should You Choose?

– Rigid foam is an excellent choice for wall insulation. It has a high R-value, it’s water-resistant, and air sealant can be used with it to make the installation process easier.

– Spray foam is also an excellent option because of its versatility. There are two types: open-cell foam and closed-cell foam. Open-cell foam is better for filling in gaps. Closed-cell foam has a higher R-value and can be used as rigid foam would be if installed correctly.

Either option is great, but which one you choose all depends on a few factors, including a budget, weather conditions, and how long you’ll be living in the house.

Ready To Insulate Your Walls, Get A More Comfortable Home, And Save Money On Heating Bills?

We’re here to help you accomplish all planned home comfort and energy efficiency goals.

At A1 Home Insulation, we install all types of foam walls. We offer free estimates. Our experts will help you choose the option that’s best for your home.


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