As a structural subfloor, Warmboard is stiff, strong and especially tough. It can be sawn with a Skilsaw and nailed or screwed directly to your floor joists just like any conventional subfloor. The same labor that would ordinarily install just a subfloor, installs a high performance radiant panel system, saving you time and labor from the very beginning. Other radiant heat systems are more labor intensive because they’re added either above or below the subfloor. Warmboard is the subfloor.

As Warmboard is installed, the four modular panel types create an infinite variety of radiant tubing layouts to suit the needs of any home. A roll of half-inch PEX tubing (the radiant industry standard for toughness, reliability, and performance) is then easily installed into the channel to complete the hydronic circuit.

There is a reason pans are not made out of concrete…

Warmboard has the two most important properties for excellent thermodynamic performance and radiant heat output:

• High conductivity
• Low thermal mass.

The importance of conductivity
The primary purpose of any radiant heat panel is to conduct heat to the living spaces of your home. Warmboard has been optimized for maximum conductivity, which means maximum radiant heat delivered from each drop of heated water.