When it comes to reliable, long-lasting insulation solutions, few materials can match the performance of closed cell insulation spray foam. Whether you’re insulating a home, business, barn, or warehouse, this high-performance option offers superior protection, energy savings, and structural support.
At Nespor Contracting Inc., we’ve helped hundreds of clients upgrade their buildings using the best insulation materials on the market. One product that continues to exceed expectations is high density closed cell foam—a modern solution that checks all the boxes for thermal resistance, moisture control, and durability.
If you’re planning a renovation or new construction, here’s what you need to know about cell spray foam and why it’s a smart investment for any property.
What Is Closed Cell Insulation Spray Foam?
Closed cell spray foam is a polyurethane-based insulation material applied directly to walls, ceilings, crawlspaces, and more. When sprayed, it expands to fill every crevice, then hardens into a dense, durable layer. Unlike open cell foam, which is softer and less compact, closed cell insulation spray foam forms an air-tight, moisture-resistant barrier.
Each cell in the foam is fully enclosed, which gives the material its name. This structure not only blocks air and moisture infiltration but also strengthens the surfaces it adheres to.
Benefits of High Density Closed Cell Foam
There’s a reason why Nespor Contracting Inc. recommends closed cell foam for both residential and commercial projects. Here are just a few advantages:
1. Exceptional R-Value
One of the most important factors in insulation is its R-value, or thermal resistance. Closed cell spray foam has one of the highest R-values per inch of any insulation material—typically around R-6.5 to R-7. That means it keeps heat out in the summer and traps warmth inside during winter, leading to consistent comfort and lower utility bills.
2. Acts as an Air & Vapor Barrier
In addition to insulating, cell spray foam prevents the movement of air and water vapor through walls and ceilings. This dual protection helps prevent mold, mildew, and moisture damage—especially important in basements, attics, and areas with high humidity.
3. Structural Reinforcement
Because it hardens into a rigid material, high density closed cell foam adds strength to the surfaces it covers. It can help support walls and roofs, which is particularly useful in pole barns, metal buildings, and hurricane-prone areas.
4. Long-Term Durability
Unlike fiberglass or cellulose insulation, closed cell spray foam doesn’t sag, shift, or break down over time. It holds its shape for decades, offering a one-time solution that continues to perform without maintenance or replacement.
5. Space-Efficient Insulation
Thanks to its density and effectiveness, less material is required to reach high R-values. This makes it perfect for tight spaces like between wall studs or under floors where thickness is limited.
Best Applications for Cell Spray Foam
At Nespor Contracting Inc., we’ve used closed cell spray foam in a wide range of projects. Some of the most common uses include:
- Residential attics and crawlspaces
- Commercial warehouses
- Agricultural barns and cold storage
- Basement walls
- Pole barns and metal structures
- Exterior walls and foundations
It’s especially valuable in climates that experience extreme temperature swings, heavy rainfall, or high humidity.
Why Choose Nespor Contracting Inc.?
If you’re looking for a professional team that knows the ins and outs of insulation, Nespor Contracting Inc. is here to help. We specialize in closed cell insulation spray foam installation and use only the highest quality materials in every job.
Our licensed installers take the time to properly assess your building and apply foam insulation with precision. We don’t cut corners—we build energy-efficient, sealed environments that last for decades. We’re proud to serve both residential and commercial clients, offering top-tier insulation across multiple property types.
To learn more or schedule an estimate, visit our Closed Cell Insulation page today.
Final Thoughts
If you want to save energy, protect your structure, and enjoy year-round comfort, closed cell insulation spray foam is a smart investment. And when you want the job done right, turn to the experts at Nespor Contracting Inc.
Whether you’re building new, remodeling, or simply upgrading outdated insulation, our team is ready to deliver durable, high-performance results using high density closed cell foam. Let us show you how much better your property can perform with professional-grade cell spray foam insulation.
Get in touch today to start your insulation upgrade with Nespor Contracting Inc.
