Spray Foam Insulation FAQ’s

If you’re considering spray foam insulation for your home or business, you probably have questions. At Camco Insulation, we believe in educating our customers so they can make informed decisions. Below are answers to some of the most common questions we receive about spray foam insulation throughout Long Island.

What is spray foam insulation?

Spray foam insulation is a two-component material that expands after application to create a continuous layer of insulation and air sealing. Unlike traditional insulation, spray foam fills cracks, gaps, and hard-to-reach areas that allow conditioned air to escape.

Spray foam helps improve indoor comfort, reduce energy costs, minimize drafts, and create a healthier indoor environment.

What is the difference between open-cell and closed-cell spray foam?

Open-Cell Spray Foam

• Soft, flexible foam
• Excellent air barrier
• Great sound reduction
• Lower cost per inch
• Ideal for attics, walls, and interior applications

Closed-Cell Spray Foam

• Dense and rigid
• Higher R-value per inch
• Acts as an air barrier and vapor retarder
• Adds structural strength
• Helps resist moisture intrusion
• Excellent for crawl spaces, basements, rim joists, pole barns, garages, and exterior walls

Our team will recommend the best product based on your home’s design, budget, and performance goals.

Is spray foam worth the investment?

For many homeowners, yes.

Although spray foam has a higher upfront cost than fiberglass or cellulose, it often pays for itself through:

• Lower heating and cooling bills
• Increased home comfort
• Reduced air leakage
• Better humidity control
• Longer HVAC equipment life
• Increased home value

Many customers notice improved comfort immediately after installation.

How much can spray foam lower my energy bills?

Every home is different, but reducing uncontrolled air leakage can significantly improve energy efficiency. The amount you save depends on factors such as your home’s age, insulation levels, HVAC system, and how much air leakage currently exists.

Many homeowners report significant reductions in heating and cooling costs while enjoying more consistent indoor temperatures.

Is spray foam safe?

Yes. Once properly installed and fully cured by trained professionals, spray foam insulation is considered safe for occupied buildings.

During installation, occupants and pets should remain out of the work area until the recommended re-entry time has passed.

Camco Insulation follows manufacturer guidelines and industry best practices for every installation.

Does spray foam stop air leaks?

Yes.

One of spray foam’s biggest advantages is its ability to air seal while insulating. It expands to fill cracks, seams, penetrations, and other openings where outside air enters the home.

Reducing air leakage can improve comfort, energy efficiency, and indoor air quality.

Will spray foam help keep my house cooler in the summer?

Absolutely.

Spray foam helps reduce the amount of hot outdoor air entering your home while slowing heat transfer through walls and roof assemblies.

Many homeowners notice:

• More even room temperatures
• Less strain on their air conditioning system
• Improved comfort upstairs
• Better humidity control

Will spray foam make my home warmer in the winter?

Yes.

By reducing heat loss and stopping cold drafts, spray foam helps your heating system maintain comfortable indoor temperatures more efficiently.

Many customers experience fewer cold spots and more consistent temperatures throughout their home.

Can spray foam reduce outside noise?

Yes.

Open-cell spray foam is particularly effective at reducing airborne sound transmission.

While it won’t make your home completely soundproof, it can noticeably reduce noise from neighboring rooms, traffic, and outdoor activity.

Does spray foam prevent mold?

Spray foam itself is not a mold killer, but by reducing air leakage and helping control moisture movement, it can make conditions less favorable for mold growth when installed as part of a properly designed building assembly.

Addressing existing water leaks is still essential.

Can spray foam be installed over existing 

insulation?

Sometimes.

In many projects, old insulation should be removed first to allow proper air sealing and to inspect for moisture issues, rodent activity, or damaged materials.

Our team will evaluate your home and recommend the best approach.

How long does spray foam insulation last?

Spray foam is designed to last for the life of the structure when properly installed. Unlike some traditional insulation products, it does not settle significantly over time and generally requires little to no maintenance.

Where can spray foam be installed?

Spray foam is commonly installed in:

• Attics
• Roof decks
• Exterior walls
• Basements
• Crawl spaces
• Rim joists
• Garages
• Pole barns
• New construction
• Home additions
• Commercial buildings
• Metal buildings

Does spray foam add structural strength?

Closed-cell spray foam can increase the rigidity of certain wall and roof assemblies because of its dense composition. While it should not be considered a replacement for structural framing, it may provide additional reinforcement as part of the building assembly.

Will my HVAC system work better after installing spray foam?

In many cases, yes.

A better-insulated and air-sealed home reduces the workload on your heating and cooling equipment. This can help maintain more consistent temperatures and may contribute to reduced wear on HVAC systems over time.

Is spray foam environmentally friendly?

Spray foam can help reduce a home’s overall energy consumption by improving efficiency and lowering heating and cooling demands. Lower energy use may also reduce a home’s carbon footprint over its lifetime.

Why choose Camco Insulation?

Camco Insulation proudly serves homeowners, builders, and businesses throughout Long Island with professional insulation solutions tailored to each project.

Our team focuses on:

• Expert installation
• Honest recommendations
• High-quality materials
• Energy-efficient solutions
• Clean, professional workmanship
• Reliable customer service

Whether you’re insulating a new home, renovating an older property, or improving your attic or crawl space, we’re here to help you choose the right insulation system for lasting comfort and performance.

Have additional questions? Contact Camco Insulation today to schedule a consultation and receive a customized recommendation for your project.