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Myths about SPF insulation - R&A Contracting

The 5 biggest myths about SPF exposes some of the worst assumptions and misunderstandings about SPF insulation. These are some of the most frequent, even laughable fallacies our R&A Contracting team hears on a regular basis. You can learn more about SPF insulation by connecting with a member of our team here.

5 biggest myths about SPF insulation – #1: SPF is fragile.

At first glance, SPF insulation can look a bit flimsy, like a featherweight living in a Ali-type of world. Don’t be fooled though, SPF insulation easily holds its own weight. There are two types of SPF insulation: open-cell and closed-cell.

Open-cell insulation, often referred to as low-density or half-pound SPF, captures air in the foam insulation, effectively creating little air pockets that can compress and aren’t as strong closed-cell. This doesn’t mean open-cell insulation is weak; that’s not at all the case. Open-cell insulation weighs between 0.4 and 0.6 lb./cu. ft. (Source) Open-cell insulation breathes, absorbs, and releases moisture more easily than closed-cell, which makes it more like wood, while closed-cell is more like steel.

Closed-cell insulation gets its name from the closed cells inside the insulation. While open-cell insulation captures air in its bubbles, closed-cell insulation captures gas, which actually pressurizes the air pockets throughout the insulation. Pressurized pockets of gas equal added strength. The closed cells repel water and moisture, which can deflect moisture and water into surrounding wood.

Added building strength from SPF insulation

SPF insulation adheres to any surface, substrate, or material upon contact. As the insulation hardens within a few short minutes, it bonds with the existing structure and can significantly increase a building structure’s strength. A recent study of SPF insulation produced fantastic results,

“Testing conducted by the National Association of Home Builders (NAHB) Research Center and the Canadian Construction Materials Centre shows spray-applied polyurethane foam insulation between wood- and steel-stud wall panels increased rack and shear strength two to three times compared with standard stick-built components with glass fiber insulation when sprayed onto gypsum wallboard and vinyl siding, and increased racking strength when sprayed onto oriented strandboard (OSB).” (Source)

If your commercial roof needs added strength, the unique flexibility and durability of SPF insulation is second to none. Call R&A Contracting to learn more about SPF insulation. We’re St. Louis’ leader in commercial roofing and we’re ready to serve you!

I’d be an idiot if I did not take this opportunity to communicate to you how much we appreciate the way in which you conduct business and take care of our facility. In my experience you, and your team, are at the top of the list of all the roofing companies I’ve dealt with over the years. Thank you!

Jim Lowry - Bissinger's Handcrafted Chocolatier

Eric and crew were really nice to have around. They were courteous, careful and caused little if any disruption. Their work looks good too! To be honest… a good experience with a product that I initially had misgivings about. I’m a convert because of Bubba, Sam and Eric. Thank you.

Jim Lowry - Bissinger's Handcrafted Chocolatier

“I want to thank the crew at R&A for a job well done on our very leaky roof at the shop. It is certainly nice to have the drips and rivers gone from the shop when it is raining. I also wanted you to know how much we appreciated that the guys were able to stay out of our way and allowed us to do business as usual without any problems or interruptions. The roof looks great and the clean-up after the job made it so we couldn’t even tell you’d been here. Thanks for doing what you do so well!”

Jay Moore, President of Safe Way Tire and Auto Center

“My wife and I were on vacation when water pipes burst in our house. We got a hold of Craig and the R&A crew was able to start evacuating the water immediately. The best part was that they were able to start work before we even returned home. It was a very fast turnaround considering the extensive amount of water damage.”

Will from Dardenne Prairie, MO

“Craig and Mike came out in a timely fashion when we needed the work done. They did a reliable and quality job.”

Jerry from SLR Properties

“Craig helped us out tremendously with the insurance process. Timely and very professional.”

Lindell from Greater Missouri Builders (GMB)

“We purchased a house and there was some damage to the roof. Very impressed with the thoroughness of Mike’s inspection. Very comfortable with their explanation of what needed to be fixed. Most impressive was the way they protected our landscaping. Really liked the way they treated me as a valued customer, even though it was only a small project.”

Ross from Troy, MO

“I use R&A Contracting when my commercial roofs receive storm damage. They work on our behalf through every step of the insurance claim process. They perform all of the work and complete the insurance process, making our roofs better than they were before the storm.”

Director of Facilities for a large Property Management Company

“The team at R & A Contracting responded immediately when notified of our water disaster. They removed water-damaged materials and property quickly and restored our home even before the final settlement from our insurance company. They minimized how long our family had to live in a hotel and got us back to normal as fast as possible.”

Will from O'Fallon, MO