Does Rockwool Or Spray Foam Have A Better R-Value? I Foam Bear Orlando

Blog

Does Rockwool Or Spray Foam Have A Better R-Value?

R-value is the primary way to measure thermal and heat transfer resistance between insulation materials. So, then, which type of insulation has the better R-value between rockwool and spray foam for optimal performance? Your search is over, because we have the answer for you right here! After learning more about which is the better choice for you, reach out to Foam Bear Orlando today to ask for a free estimate on quality spray foam insulation near you.

What Is Rockwool? (Not the Insulation You Were Hoping For)

There is a good handful of homeowners in Orlando who have their eyes on rockwool insulation as a potential choice for their property. What is it about rockwool that has them interested? Also known as stone wool insulation, rockwool is made up of a composition of rocks like basalt and slag.

Many people believe these naturally occurring rocks to be an environmentally-friendly way to insulate their homes, but the R-value of rockwool insulation is practically half of what spray foam insulation offers.

Did You Know? Rockwool Insulation Can Cause:

Respiratory problems

Skin and eye irritation

Polluted air in the home

Possible carcinogen

Learn more > What Is Spray Foam Insulation Made Of & Is It Safe?

R-Value Showdown – Rockwool vs. Closed-Cell Spray Foam

We already revealed that the R-value of rockwool insulation doesn’t quite match that of spray foam insulation, but let’s take a closer look at the numbers so you have a better idea of the vast difference in thermal resistance between these materials:

Closed-cell spray foam has an R-value of R-6 to R-7 per square inch.

Open-cell spray foam has an R-value of R-3.5 to R-4 per square inch.

Rockwool insulation has an R-value of R-3.1 to R-4 per square inch.

You can see that rockwool and open-cell foam are fairly similar in R-value, but don’t forget, spray foam comes with additional traits like air-sealing and moisture resistance that competing materials don’t have. And for the highest R-value, nothing beats the more dense closed-cell spray foam variety, which makes it a popular choice for Orlando homes.

Bonus Round: Comparing Additional Qualities

Spray foam insulation can do more than your typical insulation materials, mostly thanks to its ability to grow and expand upon application. You won’t find these extra benefits in rockwool insulation!

Here’s what else spray foam insulation can do for your Orlando home:

  • Create an effective air barrier with an air-tight seal that prevents air leaks.
  • Completely repel moisture to prevent mold and mildew inside the home.
  • Provide a longer lifespan for a long-term investment and cost savings.
  • Save you time with a simple and stress-free installation.
Rockwool can become easily damaged in Orlando, which is why it’s not considered as cost-effective as spray foam. Learn more about how spray foam insulation is a smart long-term investment in our in-depth guide!

Don’t Leave Room For Regrets. Call Foam Bear Orlando Today For Spray Foam Insulation With High R-Value Near You!

Ready to make the smart choice? Upgrade your home to spray foam insulation with the highest R-value that you can get your hands on! Call Foam Bear Orlando today at (407) 334-9327 to ask for a free estimate on top-notch spray foam products and services.