How long does installation take, and when is it safe to re-enter?

Most jobs like attic or rim-joist insulation are completed in a day. Larger or more complex projects may take more time. We’ll tell you beforehand how long the curing period and ventilation requirements are so you know when it’s safe to re-enter and resume normal use.

Will spray foam trap moisture?

Spray foam helps block unwanted air and moisture infiltration. However, a tight building requires good ventilation and moisture management. For basements or crawlspaces, closed-cell foam helps. Attics must have proper design and airflow. We plan accordingly to avoid moisture issues.

Who are reputable insulation contractors in Des Moines / Central Iowa?

Precision Insulation & Coatings is locally based in Elkhart, IA (serving Des Moines area), and we provide free estimates, full documentation, product data, and references. We’re happy to share past work and ensure you feel confident about choosing us.

Do you provide attic insulation services in Des Moines / Central Iowa?

Yes. Precision Insulation & Coatings specializes in attic spray foam insulation across Des Moines, Elkhart, and Central Iowa. We handle everything from inspection to installation and clean-up, ensuring your attic is properly insulated and sealed.

Are there rebates or incentives in Iowa / Des Moines?

Yes. MidAmerican Energy and other local utilities often offer rebates and incentives for energy efficiency improvements, including spray foam insulation. Ask us to check the latest incentive programs to see what savings you may qualify for.

Will spray foam make it difficult to sell my home?

No — homes with documented, professional spray foam installation are sold frequently in Iowa. The key is good documentation (invoices, product info, photos) and proper installation. Misconceptions usually stem from bad installs or lack of inspection paperwork.

Should I use open-cell or closed-cell foam for my home?

Open-cell foam is less expensive, good for sound control, and works well in interior walls or attics. Closed-cell foam has a higher R-value and adds moisture barrier strength — ideal for exterior walls, basements, and other areas exposed to humidity.

Will spray foam help with drafts and ice dams in Des Moines winters?

Absolutely. Spray foam seals air leaks and reduces heat escape into attic or roof spaces, which helps prevent ice dams and keeps your home warmer and more draft-free in winter.

How much does spray foam insulation normally cost?

The cost of spray foam insulation in Iowa typically ranges between $1.25 and $1.75 per board foot, depending on whether it’s open-cell or closed-cell foam. The final price depends on the size of your home, the area being insulated (attic, basement, or walls), and the type of foam used. At Precision Insulation & Coatings, we offer free, no-obligation estimates so you know exactly what to expect before the project begins.

How much should I expect to pay for spray foam insulation in Des Moines?

For most Des Moines homes, spray foam insulation costs $2,500 to $7,000 on average, depending on the square footage and application area. While it may be a bigger upfront investment compared to fiberglass or cellulose, spray foam delivers superior energy savings, comfort, and durability that pay off in the long run.

Is there a downside to spray foam insulation?

Spray foam insulation offers many benefits — energy efficiency, air sealing, and durability. However, potential downsides include a higher initial cost compared to traditional insulation and the need for professional installation to ensure safety and performance. At Precision Insulation & Coatings, we use certified installers and proven methods to eliminate risks and maximize benefits for your home.

Why are people removing spray foam insulation?

In rare cases, spray foam insulation may be removed if it was improperly installed (for example, applied too thickly or without proper ventilation). Another reason might be during major home renovations where access to structural components is required. When installed correctly by professionals, spray foam insulation rarely needs to be removed and will last the life of your home.

Why can’t you sell a house with spray foam insulation?

There is a misconception that homes with spray foam insulation cannot be sold. In reality, you can absolutely sell a home with spray foam — and many buyers appreciate the energy efficiency and comfort it provides. Issues usually arise only when spray foam was improperly installed or when appraisers/lenders are unfamiliar with it. With proper documentation and installation by trusted professionals like Precision Insulation & Coatings, spray foam should not affect your home’s resale value.

How much does spray foam insulation cost in Iowa?

Spray foam insulation in Iowa generally costs between $1.25 and $2.50 per board foot, depending on the project scope. Attic and wall applications may vary slightly. Our team in Elkhart, Iowa serves the greater Des Moines area and provides custom pricing based on your home’s needs.

What is the best spray foam insulation option for Iowa homes?

Both open-cell and closed-cell spray foam work well in Iowa’s climate. Open-cell is more affordable and excellent for soundproofing interior walls, while closed-cell provides a higher R-value and acts as a moisture barrier — ideal for basements and exterior walls. Our experts will recommend the best solution for your home and budget.

Who offers affordable spray foam insulation in Des Moines?

At Precision Insulation & Coatings, we pride ourselves on offering competitive pricing without sacrificing quality. We serve homeowners throughout Des Moines and Central Iowa with tailored insulation solutions that maximize comfort and efficiency while keeping costs manageable.

Do you provide attic insulation services in Des Moines?

Yes! We specialize in attic insulation, one of the most effective ways to reduce energy costs. Our spray foam insulation seals air leaks, prevents heat loss in winter, and keeps your home cooler in summer. If you live in the Des Moines area, call us today for a free attic inspection and estimate.

What is Spray foam insulation?

May 13, 2025
5:59 am

Precision Insulation and Coatings

If you’ve ever wondered what is spray foam, it’s a type of insulation created by combining two liquid components: polyol resin and isocyanate, that expand into a foam when sprayed. The foam quickly fills gaps, cracks, and cavities, creating a continuous barrier against air leakage and heat transfer.

When people ask what is in spray foam insulation, the answer depends on whether you’re looking at open-cell or closed-cell formulations. Both types use the same basic ingredients but expand differently and provide distinct performance benefits.

Closed Cell Spray Foam

Closed cell is the most effective foam insulation. Foam has different density in various applications. Home insulation would be 2lb density, agriculture foam for chicken houses use 10lb foam. Closed cells of the foam, trap gasses as a barrier to insulate. Closed cell foam offers a class II vapor barrier at 1.5″-2″ depending on the manufacture brand. Manufacture data sheets do not consider foam waterproof. However, the foam does resist moisture. Acting as an insulator, air barrier, vapor barrier (at 1.5-2″), the foam also assists with some light pest control.

Open Cell foam

Open cell foams generally tout a .5lb density, meaning .5lbs per cubic foot. Homes may use half pound foam as an insulation and an air barrier. It does not offer a vapor barrier attribute. If open cell gets wet, moisture may be absorbed. Vapor also drives into the foam in colder climates, referred to as vapor drive. Vapor drive occurs when humidity drives into the foam. Extreme temperatures outside and warm conditions inside, create the perfect scenario for vapor drive. This foam is a good product in the correct applications and in the right climate zones.

Benefits of Spray Foam Insulation

When homeowners ask what spray foam is and why it is used, the benefits quickly become clear. Spray foam insulation is designed to do more than just keep your home warm in winter and cool in summer, it provides lasting protection and efficiency.

Energy Efficiency

One of the biggest advantages of spray foam is its ability to create an airtight seal. For anyone wondering what is in spray foam insulation that makes it so effective, the answer lies in its expanding properties. By filling every crack and gap, it helps lower energy bills and reduces the strain on your HVAC system.

Comfort

With fewer air leaks, your home maintains even temperatures throughout. You avoid cold spots in the winter and hot zones in the summer, keeping every room comfortable.

Noise Reduction

Open-cell spray foam absorbs sound, reducing outside noise and making your indoor spaces quieter. It also minimizes sound transfer between walls and floors.

Moisture Control

Closed-cell foam works as both insulation and a vapor barrier at certain thicknesses, reducing the risk of mold growth and protecting your home from moisture damage.

Durability

Spray foam holds its shape and doesn’t sag or settle over time, unlike fiberglass or cellulose. This ensures lasting performance for years to come.

Added Strength

Closed-cell foam adds rigidity to walls and roofs, providing extra support and extending the life of your structure.

Where Spray Foam Works Best

If you’re still asking what is spray foam used for, the answer is just about everywhere in your home or building. Its ability to expand makes it especially effective in hard-to-reach areas where traditional insulation often fails.

Attics and Roof Decks: Helps prevent energy loss and protects your roof from moisture.
Crawlspaces and Basements: Seals out drafts and controls humidity in hard-to-insulate areas.
Exterior Walls: Expands into cavities for complete coverage around framing and outlets.
Garages and Ceilings: Keeps rooms above garages more comfortable year-round.
Agricultural and Commercial Buildings: Regulates temperature, protects equipment, and improves efficiency in larger structures.

Its ability to expand and fill gaps makes spray foam particularly effective in tight or irregular spaces.

Things to Consider Before Installing Spray Foam

Knowing what is in spray foam insulation is important before installation, since it affects cost, application, and performance. While spray foam offers long-lasting benefits, there are some key points to keep in mind:

Upfront Cost: Spray foam costs more than fiberglass or cellulose initially, but it delivers long-term savings through lower energy bills and reduced maintenance.
Installation Quality: Professional installation is essential. A qualified contractor ensures proper application and curing for the best results.
Ventilation: Open-cell foam does not act as a vapor barrier, so in certain climates, extra moisture control may be needed.
Building Codes: Local codes may require inspections, fire-resistant coatings, or other safety measures.
Curing Time: Spray foam emits VOCs while curing, so proper ventilation is necessary until it’s fully set.

Environmental & Health Factors

Lower Carbon Footprint: Improved energy efficiency reduces energy consumption and emissions.
Material Improvements: Many foams now use eco-friendly blowing agents.
Indoor Air Quality: Once cured, spray foam is inert and safe.
Fire Safety: Many foams include flame retardants and must meet code standards.

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Scott Todd

I'm Scott Todd, owner of Precision Insulation & Coatings based in Elkhart, Iowa. With over 15 years of experience, I specialize in spray foam insulation, concrete leveling, and protective coatings for residential, commercial, and agricultural buildings across Iowa. My team is known for precise workmanship, energy-saving results, and solutions tailored to Iowa’s climate. We complete over 200 projects annually, using advanced methods in open-cell and closed-cell insulation and polyurea coatings. Recognized by the National Association of Insulation Contractors, I stay active in the industry to ensure our clients always receive the most effective, up-to-date solutions.