What is Spray Foam? Benefits, Types & Installation Tips

When it comes to insulation, homeowners today have more choices than ever—but one option continues to stand out for its superior performance and energy-saving capabilities: spray foam insulation. But what exactly is spray foam, how does it work, and is it right for your home? In this blog, the experts at Koala Insulation of Georgetown break it all down so you can make a smart, informed decision.

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What is Spray Foam Insulation?

Spray foam insulation is a high-performance material that expands upon application, creating an air-tight seal wherever it is installed. It is made by mixing two chemical components—polyol resin and isocyanate—that react to form a foam. This foam expands to fill gaps, cracks, and crevices, then hardens to form a rigid insulating barrier.

Spray foam is commonly used in:

• Attics
• Walls
• Crawl spaces
• Rim joists
• Basements
• New construction and retrofit projects

At Koala Insulation of Georgetown, we specialize in spray foam installation that delivers maximum energy efficiency and long-term performance for homeowners across Central Texas.

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The Two Types of Spray Foam

There are two primary types of spray foam insulation, and each serves a different purpose depending on your home’s needs:

1. Open-Cell Spray Foam

• Structure: Light and airy with a sponge-like texture
• Expansion: Expands up to 100 times its original size, ideal for filling large cavities
• R-Value: Around R-3.5 to R-3.8 per inch
• Benefits:
  • Excellent soundproofing
  • More affordable than closed-cell foam
  • Ideal for interior walls and ceilings

2. Closed-Cell Spray Foam

• Structure: Dense and rigid, providing both insulation and structural support
• Expansion: Expands less than open-cell but forms a tighter seal
• R-Value: Around R-6 to R-7 per inch, making it one of the highest available
• Benefits:
  • Superior thermal resistance
  • Water-resistant and air-impermeable
  • Adds structural strength to walls and roofs

Both types are effective, and Koala Insulation of Georgetown will help you choose the right one based on your goals, budget, and application.

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Key Benefits of Spray Foam Insulation

Spray foam isn’t just another insulation option—it offers a wide range of advantages that can significantly improve your home’s comfort and efficiency:

✅ Superior Air Sealing

Spray foam creates a tight seal that blocks air leaks better than any other insulation type, reducing drafts and keeping indoor temperatures consistent.

✅ Energy Efficiency

By minimizing heat loss and air infiltration, spray foam helps lower your energy bills. Many homeowners report savings of up to 30% on heating and cooling costs.

✅ Moisture Barrier

Closed-cell spray foam acts as a moisture barrier, reducing the risk of mold growth, water damage, and indoor humidity problems—especially important in humid areas like Georgetown, TX.

✅ Long-Lasting Performance

Unlike other insulation materials that can sag or degrade over time, spray foam retains its shape and insulating power for decades.

✅ Pest Deterrence

Spray foam seals cracks and gaps that pests like rodents and insects use to enter your home. While not a pesticide, it helps prevent infestations.

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Is Spray Foam Safe?

Spray foam is safe once it is fully cured. Professional installers like Koala Insulation of Georgetown ensure proper ventilation and curing time during installation. Once hardened, spray foam is inert and poses no health risks. We follow all safety guidelines and industry standards to protect your family and your home.

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Where Can Spray Foam Be Installed?

Spray foam is extremely versatile. Here are the most common areas where Koala Insulation of Georgetown installs spray foam:

• Attics: Prevents heat from escaping in winter and entering in summer.
• Walls: Increases thermal performance and blocks outdoor noise.
• Rim Joists: Seals a common source of air leakage in basements.
• Crawl Spaces: Keeps moisture and cold air out while improving comfort above.
• Roofs: Enhances durability and energy efficiency in homes with exposed ceilings.

Whether you’re building a new home or improving an older one, spray foam offers flexible solutions for nearly every part of your house.

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Cost of Spray Foam Installation

Spray foam insulation typically has a higher upfront cost than traditional materials like fiberglass or cellulose. However, its long-term energy savings, durability, and performance often make it the most cost-effective option in the long run.

Installation costs depend on:

• Size of the space
• Type of spray foam (open-cell vs. closed-cell)
• Accessibility of the area
• Thickness and R-value required

At Koala Insulation of Georgetown, we provide free estimates and personalized recommendations so you can get the most value for your investment.

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Professional Installation Matters

Spray foam requires skilled application with specialized equipment. Poorly installed foam can lead to off-ratio mixtures, improper curing, or gaps in coverage—all of which reduce performance and may even damage your home.

Koala Insulation of Georgetown is a trusted local provider with trained, certified technicians. We use top-of-the-line equipment and materials to ensure your insulation is installed safely and effectively the first time.

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Is Spray Foam Right for You?

Spray foam insulation is ideal for:

• Homeowners seeking maximum energy savings
• Houses with air leakage issues
• Humid climates where moisture control is essential
• Projects requiring superior insulation in tight or irregular spaces

It may not be the best choice for every budget or application, which is why we offer a variety of insulation options. During your free consultation, we’ll walk you through the pros and cons to determine if spray foam is right for your home.

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Call Koala Insulation of Georgetown for a Free Estimate

Whether you’re building a new home, renovating, or just tired of high utility bills, spray foam insulation could be the upgrade you’ve been looking for. It delivers exceptional comfort, energy efficiency, and peace of mind—especially when installed by a professional team.Call Koala Insulation of Georgetown today at (737) 400-5955 or visit https://koalainsulation.com/georgetown to schedule your free insulation estimate. Let us help you create a more energy-efficient, comfortable, and healthy home with expertly installed spray foam insulation.