Warmboard
Warmboard combines a structural subfloor and a thermodynamically sophisticated radiant panel into one simple
component of your radiant heating system.
Warmboard begins with a stiff, strong, 1-1/8" thick, 4' X 8' sheet of tongue and groove, weather-resistant plywood. A
modular pattern of channels is cut into the top surface. A thick sheet of aluminum is stamped to match the channel pattern
and is permanently bonded to each panel.

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 whether 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.

Warmboard has the two most important properties for excellent thermodynamic performance and radiant heat output:
High conductivity
Low thermal mass

Because Warmboard is so conductive, we are known for using the lowest water temperatures in the radiant heat industry. Most Warmboard systems operate with water between 90 degrees F and 110 degrees F.
If high resistance floor coverings such as wool carpets are desired, there is lots of room to raise water temperatures
while still operating in the conservative temperature range that maintains the highest system reliability.
Lower water temperature mean lower energy bills for the life of your Warmboard home!

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