Heat-Sheet Special Order
*Special order item - Non-returnable, non-refundable.
The Heat-Sheet® Heavy is a rigid foam insulation board that has nodules to hold your in-floor heating PEX pipes. So you literally step the PEX pipes into place.
This replaces the standard pink foam insulation board that you typically would staple PEX pipes to. It also replaces the staples, sealing tape, and vapor barrier. You may still want a staple or something at the curves in your PEX pipes.
Heat-Sheet® Heavy tubing channel system provides proper, multidirectional placement of 1/2", 5/8" or 3/4" I.D. tubing with 4" on-center points.
APPLICATIONS
Heat-Sheet® Heavy Radiant Floor Panels can be used in all under-concrete radiant floor applications, including:
+ Slab-On-Grade Applications
+ Sandwich Slab Applications
+ Snow-Melt Applications
+ Retrofit & Overlay Applications
For more information, see the Heat-Sheet® Heavy Spec Sheet/Brochure
Installation Guide
Made in the USA/Canada. Most likely will drop-ship from the factory. Because each factory has slightly different prices, the price may vary depending on location. Please call for an accurate price. 218-587-5001
Automatic shipping costs are very high, as they ship by freight in full bundles. Please ask for a quote.
Special Order Options by Region: Prices vary by size and region. Please call for current prices and availability
Southern (none)
Western
- R4 (for retrofits and other places when thickness matters) This Heat-Sheet® has a nominal panel thickness of 0.5" and a total thickness of 1-3/8", with an R-value of 4. Bundles have 16 sheets.
- R10 with PSI 60 For heavy machine sheds. This Heat-Sheet® Heavy has a nominal panel thickness of 2" and a total thickness of 3-1/4", with an R-value of 10.
Eastern Region
- R4 (for retrofits & remodels) This Heat-Sheet® has a nominal panel thickness of 0.5" and a total thickness of 1-3/8", with an R-value of 4. Bundles have 16 sheets.
- R10 with 60 PSI (for heavy machine sheds.) This Heat-Sheet® Heavy has a nominal panel thickness of 2" and a total thickness of 3-1/4", with an R-value of 10.
- R14 This Heat-Sheet® Heavy has a nominal panel thickness of 3" and a total thickness of 4-1/4", with an R-value of 14.
North Central Region
- R4 This Heat-Sheet® has a nominal panel thickness of 0.5" and a total thickness of 1-3/8", with an R-value of 4. Bundles have 16 sheets.
- R6 This Heat-Sheet® has a nominal panel thickness of 1" and a total thickness of 1-7/8", with an R-value of 6.
- R8 This Heat-Sheet® has a nominal panel thickness of 1.5" and a total thickness of 2-3/8", with an R-value of 8.
- R14 This Heat-Sheet® has a nominal panel thickness of 3" and a total thickness of 3-7/8", with an R-value of 14.
- R16 This Heat-Sheet® Heavy has a nominal panel thickness of 3 1/4" and a total thickness of 4-1/2", with an R-value of 16.
- R20 This Heat-Sheet® Heavy has a nominal panel thickness of 4 1/4" and a total thickness of 5-1/2", with an R-value of 20.

What's Happening in Cottonwood?
Extreme Panel's demonstration house brings building techniques into the real world. As a sponsor, HUG Hydronics is providing Heat-Sheet, PEX, and the in-floor heating distribution system for the project.
Fellow EP Summit sponsor BUILD Show Network is documenting the process with cameras, interviews, and a closer look at each step of the process, leading up to the January 2027 Summit.
See the build come together.
Take a closer look at the project, then explore what radiant in-floor heating could look like in your own home, shop, or garage.
Start the HUG Product Wizard
What HUG Hydronics Brings to the Project.
- Start below the slab
- Heat-Sheet insulation provides the foundation for the project's radiant floor.
- Put warmth underfoot
- PEX loops carry heated fluid through the floor, turning the slab into part of the heating system.
- Bring it together with HUG Hydronics
- The HUG Hydronics system brings pumps and controls into a compact system simplifying the mechanical setup that serves the floor.
No. The Wizard is designed to walk you through the basics in plain language. Homeowners and building professionals can use it to explore what their project may need.
HUG Hydronics is sponsoring Extreme Panel's project by providing its in-floor heating materials and system. BUILD Show Network is a fellow EP Summit sponsor documenting the demonstration house. The summit is planned for January 2027.
Yes. Call HUG Hydronics at 218-587-5001 or email sales@hugllc.com. Additionally, completing the HUG Wizard is a useful first step toward discussing your program.
Nope, and we love Extreme Panel's way of building, however this project showcases only one type of application of HUG's system. HUG Hydronics can also be used in other homes, shops, garages, and ag buildings where radiant floor heating is appropriate.
Have your floor plan or approximate dimensions handy, along with basic details about your insulation, ceiling heights, and windows. Think about which spaces you'd like to control with separate thermostats. The Wizard will guide you through the planning process, and HUG's team can help review your project's needs.
