
When it comes to boosting your home’s comfort and energy efficiency, attic insulation is one of the smartest investments you can make. Not only does it help regulate indoor temperatures year-round, but the right insulation can also lower utility bills and increase your home’s resale value. The big question is: which type of insulation gives you the best return on investment (ROI)?
Let’s compare the three most common options—blown-in, batt, and spray foam—to help you make the right decision for your home.
💨 Blown-In Insulation

What It Is: Small fibers of cellulose or fiberglass are blown into your attic using special equipment, filling gaps and hard-to-reach areas.
Pros:
- Excellent at covering irregular spaces and nooks.
- Cost-effective upfront compared to spray foam.
- Great for adding insulation over existing layers.
Cons:
- May settle over time, reducing effectiveness.
- Requires professional equipment to install correctly.
ROI Factor: Blown-in insulation is relatively inexpensive and provides strong energy savings, making it a high-ROI choice for many homeowners.
🧱 Batt Insulation

What It Is: Pre-cut fiberglass or mineral wool sheets rolled into place between joists.
Pros:
- Widely available and affordable.
- Easier DIY option compared to blown-in or spray foam.
- Quick installation.
Cons:
- Doesn’t fit irregular spaces as well as blown-in.
- Gaps and compression can reduce efficiency.
- Susceptible to moisture damage if not installed properly.
ROI Factor: Batt insulation offers decent ROI, especially in standard attics with easy access, but improper installation can limit its long-term payoff.
🛠 Spray Foam Insulation

What It Is: Expanding liquid foam applied directly to attic surfaces that hardens into a dense, airtight layer.
Pros:
- Creates a superior air seal, reducing drafts.
- Adds structural strength to the home.
- Excellent for long-term energy savings.
Cons:
- Higher upfront cost.
- Professional installation required.
- May be overkill in mild climates with lower heating/cooling demands.
ROI Factor: While the initial price is steep, spray foam can deliver the highest lifetime ROI in climates with extreme temperatures, thanks to major energy savings and durability.
📊 Which Insulation Has the Best ROI?
- Blown-in insulation offers one of the fastest paybacks due to its affordability and energy-saving performance.
- Batt insulation works well in simple attics, but ROI drops if air gaps are left behind.
- Spray foam insulation has the highest upfront investment but can save the most money in the long run, especially for homes in very hot or very cold regions.
✅ Final Thoughts

Investing in attic insulation is a decision that pays off both in comfort and financial savings. Whether you choose blown-in, batt, or spray foam, the right insulation reduces energy bills, improves indoor comfort, and increases your home’s value.
👉 At Wynnow, we help homeowners choose and install the insulation type that makes the most sense for their budget and long-term ROI goals. Reach out to us today to get started with your insulation project! Also be sure to check us out on Facebook, Instagram, and X for other information and advice!