Thinking About Spray Foam Insulation? Start Here.

Spray foam insulation has become a popular choice for homeowners across Denver looking to boost energy efficiency and comfort year-round. But if you're new to this high-performance material, you probably have questions. At Thermal Home Solutions, we’re here to provide answers.

Here are the most frequently asked questions we get about spray foam insulation—and what you need to know before installing it in your home.

1. What is spray foam insulation?

Spray foam insulation is a two-part liquid material that expands into a thick foam when applied. It seals gaps, cracks, and cavities, providing both insulation and an air barrier in one step. It’s ideal for attics, crawlspaces, walls, and even hard-to-reach areas.

2. What’s the difference between open-cell and closed-cell spray foam?

• Open-cell foam is lighter, softer, and better for soundproofing. It’s often used in interior walls and ceilings.

• Closed-cell foam is denser, more moisture-resistant, and offers a higher R-value per inch—making it a better choice for exterior walls and areas prone to moisture or extreme temperatures.

3. How much does spray foam insulation cost?

Spray foam typically costs more upfront than traditional insulation, but it offers greater long-term energy savings. Costs depend on the type of foam used, the size of the space, and accessibility. At Thermal Home Solutions, we offer free estimates so you know exactly what to expect.

4. Is spray foam worth it in Denver's climate?

Absolutely. With Denver’s cold winters and hot, dry summers, spray foam helps maintain indoor temperature stability year-round. It reduces heating and cooling demands, which means lower energy bills and more comfort—especially in older homes with drafty attics or basements.

5. Is spray foam safe for my home?

When installed correctly by trained professionals, spray foam insulation is completely safe. We use low-VOC, eco-friendly products and follow strict ventilation protocols during installation to protect you and your home.

6. How long does spray foam insulation last?

Spray foam can last up to 80 years or more without sagging or settling, unlike fiberglass or cellulose. It's a long-term investment that adds real value to your home.

7. Can spray foam help with moisture or mold issues?

Yes. Closed-cell spray foam acts as a moisture barrier, helping to prevent condensation and reducing the risk of mold growth. It’s ideal for crawlspaces, basements, and rim joists where moisture can be a concern.

8. Do I need to leave my home during installation?

Depending on the size of the job and ventilation, we may recommend temporarily vacating certain areas for safety. Our team will walk you through the timeline and safety steps before we begin.

Ready to Insulate Smarter?

If you're looking for a high-performance insulation solution that improves comfort, energy efficiency, and home value, spray foam is hard to beat. Contact Thermal Home Solutions today for a free quote and find out if spray foam is right for your Denver home.