northwest systems
Main  |  Thermal Floors  |  Gypsum Underlayments  |  Portland  |  Sloped Roof Decks

Thermal Floors

Our THERMAL MASS enhances the LUXURY & EFFICIENCY of under floor heating, as it provides a FAST RESPONSE to the heating system, provides excellent acoustics resulting in a much QUIETER HOME, as it's ULC listed for fire resistance it provides a SAFER HOME. The THERMAL MASS makes for smooth transitions between floor coverings as it's height can be adjusted, and when it bonds to the substrate, it stiffens the structure making it a SOLID FLOOR with compressive strengths to 2,500 p.s.i. for a strong hard surface.

The THERMAL MASS Encases all of the tubing in a crack resistant non combustible material. Some radiant systems install under plywood subfloors, but plywood is nearly 4 times more insulative than our THERMAL MASS, resulting in reduced heat transfer. The THERMAL MASS does its work above the subfloor more efficiently. This flowable floor underlayment is specifically designed to meet the needs of radiant floor heating. At a depth of 1-1/2", its the thinnest thermal mass available, so when the thermostat calls for heat expect a fast response time.

  • RESISTS HEAT DETERIORATION - it is specifically formulated for radiant floor heating.
  • It Enhances the heating SYSTEM RESPONSIVENESS due to its efficient thermal mass.
  • Provides a SMOOTH tough surface, and is FIREPROOF giving you a safer home.
  • Stiffens the floor & reduces the bounce (like a laminated beam ) and won't shrink or crack
  • Seals perimeter walls, keeping out baseboard & floor drafts, as well as insects.
  • Eliminates squeaks and nail pops common to wood underlayments.
  • Provides an EXCELLENT SOUND BARRIER between floors.
  • Our Thermal Mass maintains a direct bond with the substrate and with the tubing giving you a very EFFICIENT HEAT TRANSFER.
  • It has agents to stop the PH acids that are found in concrete ensuring that acid doesn't damage any tubing.
  • Our Thermal mass is approximately 40% LIGHTER than concrete requiring less structural support.


Phone: 1.800.361.8343

Web site:
Northwest Systems

"Quality systems you can count on."

Toronto New York Ontario Ohio Pennsylvania Michigan Ottawa Windsor Gypsum Concrete Northwest Systems, Northwest Floor underlayments, gypcrete, heated floors, underlayments, Floor underlayments, self leveling floors, firm fill, maxxon, radiant floors, engineered cements, Crete Gyp, Heated floors, Thermal Mass, Thermal Floors, Floor leveling, Underlayments Portland