Read on to explore our guide covering how these two insulation options compare, the strengths of spray foam insulation, and which one is best suited for your project.
What Is Spray Foam Insulation?
Spray foam insulation is an extremely versatile, spray-applied material used to create a durable barrier between two surfaces. It’s commonly used in many environments — like attics, basements, within walls, and in crawl spaces — to fill cracks and seal out air and moisture.
There are two main types of spray foam insulation, open-cell and closed-cell. Open-cell spray foam insulation works best in interior projects because it is less dense and requires less material. Closed-cell is more dense, requiring more material to cover the same area and can be a good choice for both interior and exterior applications.
What Is Rigid Foam Insulation?
Rigid foam typically comes in panels and acts as a barrier against moisture, air, and heat, making it a common choice for insulating walls, roofs, and foundations in construction projects.
For this insulation option, you will be required to cut and measure the panels to fit the surface you’re insulating, so it’s best used for projects that have large, flat surfaces with minimal openings.
Why Spray Foam Insulation Stands Out as the Leading Choice
When you compare spray foam to rigid foam insulation, spray foam is the best choice in almost every way:
| Factor | Spray Foam | Rigid Foam |
|---|---|---|
| Air sealing | ✅ Expands to block drafts and leaks | ❌ Often leaves small gaps between the boards |
| Coverage | ✅ Fills every nook and cranny | ❌ Works best only on wide or flat surfaces |
| Moisture control | ✅ Acts as a barrier to keep out moisture | ❌ Often needs extra layers for moisture control |
| Energy savings | ✅ Keeps cooled or heated air contained within a structure | ❌ Can lose effectiveness and let air out over time |
| Installation speed | ✅ Applied quickly and seals virtually immediately | ❌ Takes more time and effort — must be cut and fit into place |
Why SprayWorks Equipment Is Your Source for Spray Foam
With our decades of industry experience, SprayWorks Equipment stands out as a trusted leader in providing spray foam equipment, rig machines, foam materials, professional training, and more.
We offer spray foam insulation from the most trusted brands and suppliers, including:
- Grizzly Gold
- Gaco Western
- Green Insulation Technologies
- Universal Polymers Corporation (UPC)
- Enverge
You can also shop for our all of our products in our online store, designed to make it easy to browse and order materials at your convenience.
Contact SprayWorks Equipment Today
Needing additional assistance? We’re here to help you every step of the way. Please contact our team of spray foam insulation experts today!

