Is Spray Foam Insulation Right for You?

Choosing the right insulation can make a huge difference in your home's comfort and energy costs. The wrong choice could lead to drafts, high bills, or even moisture problems. That’s why many homeowners and business owners look into spray foam insulation—a powerful option known for its airtight seal and long lifespan.

So, is it worth it? Yes, spray foam insulation is a great choice if you want superior energy efficiency, moisture resistance, and long-term durability. But it’s not for everyone. The higher upfront cost and professional installation requirements might make other options more appealing, depending on your budget and needs.

In this guide, we’ll break down the real pros and cons of spray foam insulation—without the fluff. By the end, you’ll know if it’s the right investment for your home or business.

The Pros of Spray Foam Insulation

Spray foam insulation is one of the best options for sealing your home against air leaks and moisture. It expands to fill gaps, creating a strong barrier that keeps your home energy-efficient and comfortable year-round. Let’s look at the biggest benefits of using spray foam.

1. Moisture Resistance & Mold Prevention

One of the biggest reasons people choose spray foam is its ability to block moisture. It doesn’t absorb water like fiberglass or cellulose, which means it won’t trap moisture inside your walls. This helps prevent mold, mildew, and long-term water damage.

This is especially important in humid areas or places prone to heavy rain. If moisture seeps into your insulation, it can lead to expensive repairs. Spray foam helps keep your home dry and protected, reducing the risk of rot and structural damage. (Related: The Ultimate Guide to Insulation Services in West Fargo, ND)

2. Energy Efficiency & Lower Utility Bills

Spray foam has a high R-value, which measures how well it resists heat flow. The higher the R-value, the better the insulation. Closed-cell spray foam has one of the highest R-values of any insulation type, meaning it keeps your home warmer in winter and cooler in summer.

Because spray foam seals air leaks so well, your heating and cooling system won’t have to work as hard. Many homeowners see a significant drop in their energy bills after switching to spray foam insulation. Over time, these savings can help offset the higher upfront cost.

3. Air Sealing & Comfort Benefits

If you’ve ever felt a draft near windows or doors, you know how frustrating air leaks can be. Spray foam fills every gap and crack, creating an airtight seal that keeps outside air from creeping in. This helps maintain a consistent temperature throughout your home.

It also improves indoor air quality by blocking dust, pollen, and other allergens from entering through small openings. If you suffer from allergies or asthma, this can make a big difference in your overall comfort.

4. Longevity & Structural Strength

Unlike traditional insulation, which can sag or deteriorate over time, spray foam stays in place for decades. Once it hardens, it maintains its shape and effectiveness without the need for frequent replacements.

Closed-cell spray foam also adds extra strength to walls and roofs. It bonds tightly to surfaces, helping reinforce your home’s structure. This can be especially useful in areas prone to strong winds or heavy snowfall.

The Cons of Spray Foam Insulation

Spray foam has a lot of benefits, but it’s not perfect. Before making a decision, it’s important to understand the downsides. Here are the biggest drawbacks of spray foam insulation.

1. Higher Upfront Cost

Spray foam is more expensive than fiberglass or cellulose insulation. The cost depends on the type of foam (open-cell or closed-cell) and how much area needs to be covered.

While the long-term energy savings can help offset the price, the initial investment is higher. If you're on a tight budget, other insulation options may be more affordable in the short term.

2. Professional Installation Required

Unlike fiberglass batts that you can install yourself, spray foam must be applied by a trained professional. The chemicals used in the process expand quickly, and if not applied correctly, they can leave gaps or even damage surfaces.

Hiring a professional ensures the job is done right, but it adds to the overall cost. It’s also important to choose a contractor with experience, as poor installation can reduce the insulation’s effectiveness.

3. Potential Off-Gassing & Curing Time

When spray foam is first applied, it releases chemicals called volatile organic compounds (VOCs). These fumes can cause headaches, eye irritation, or breathing problems if not properly ventilated.

The good news is that the off-gassing period is short. Most spray foam insulation fully cures within 24 to 48 hours. Once cured, it’s safe and won’t continue to emit harmful chemicals. However, if you have chemical sensitivities, you may want to stay out of the home during installation.

4. Not Ideal for Every Property

While spray foam is great for new builds and renovations, it’s not always the best choice for older homes. In some cases, the expansion of the foam can put pressure on aging walls or wiring, leading to potential issues.

Additionally, if you ever need to replace plumbing or electrical wiring inside insulated walls, spray foam can be difficult to remove. Unlike traditional insulation, which can be pulled out easily, spray foam hardens and adheres tightly to surfaces.

How Spray Foam Insulation Works

Understanding how spray foam insulation works can help you decide if it’s the right fit for your home or business. Unlike traditional insulation materials like fiberglass or cellulose, spray foam is applied as a liquid and expands to fill gaps, creating an airtight seal.

1. Open-Cell vs. Closed-Cell: What’s the Difference?

There are two main types of spray foam insulation, and they serve different purposes:

• Open-cell spray foam is softer and more flexible. It expands more, making it great for filling hard-to-reach areas. It’s also more affordable but has a lower R-value, meaning it doesn’t insulate as well as closed-cell foam.

• Closed-cell spray foam is denser and stronger. It creates a rigid barrier that provides higher insulation value (R-value) and adds structural support to walls and roofs. It also resists moisture better than open-cell foam.

Choosing the right type depends on your needs. If you’re looking for top-tier insulation and durability, closed-cell foam is the better option. If you need soundproofing and affordability, open-cell foam is a solid choice.

2. Step-by-Step Installation Process

Spray foam insulation must be installed by professionals to ensure proper coverage and safety. Here’s how it works:

1. Preparation – The area is cleared of dust, moisture, and obstructions.

2. Application – The foam is sprayed as a liquid, expanding rapidly to fill gaps and cracks.

3. Curing – The foam hardens within minutes but requires 24–48 hours for full curing.

4. Final Inspection – The contractor checks for any missed spots and ensures proper sealing.

Once cured, the foam stays in place permanently, preventing air leaks and improving energy efficiency.

3. Lifespan & Maintenance

One of the biggest advantages of spray foam insulation is its longevity. It doesn’t sag, shift, or degrade over time like fiberglass or cellulose. When properly installed, it can last 50 years or more without needing replacement.

Maintenance is minimal, but it’s important to check for damage after storms, renovations, or pest infestations. While spray foam is resistant to mold and pests, any structural damage to your home could expose the insulation, requiring repairs.

Is Spray Foam the Best Choice for Your Home or Business?

Spray foam insulation is a top choice for homeowners and businesses in West Fargo, ND, looking for long-term energy savings, moisture protection, and durability. It seals air leaks, reduces utility costs, and strengthens your building’s structure. However, if you're looking for a more budget-friendly option, fiberglass insulation remains a solid choice, offering reliable thermal performance and ease of installation. The best insulation depends on your specific needs, budget, and property type.

For expert advice and professional installation, Draft Busters Insulation provides high-quality spray foam and fiberglass insulation services in West Fargo, ND. Their team helps homeowners and businesses choose the best insulation solutions for maximum comfort and efficiency. Whether you need the airtight performance of spray foam or the affordability of fiberglass, Draft Busters Insulation has you covered. Contact them today for a free consultation and quote.