HYDROFOAM® maximizes radiant heat insulation for residential projects by ensuring the heat is dispersed evenly throughout the entire floor area, providing home owners with a more comfortable living and working environment.

NUDURA has brought innovation to the market with our line of InsulatedHydroFoam Concrete Forms and that innovation continues with HYDROFOAM®. Installation is fast and easy compared to traditional radiant heat insulation which requires multiple steps to run radiant heat piping. The 4’ x 4’ (1.2 m x 1.2 m) boards are 2 1/2“ (64 mm) thick and easily installed with an overlapping interlock on all four sides, ensuring the boards are locked in place during installation. HYDROFOAM® utilizes a 360° multi-directional friction fit anchor system in to whichHydroFoam pipe placement radiant heat piping is easily stepped into place in any direction required. 

HYDROFOAM® offers installers a lightweight high density expanded polystyrene (EPS) radiant heat insulation product that increases installation speeds, is easily cut to meet any angle or radius while providing R-10 of insulation value.

  HYDROFOAM® Information Sheet
(Includes Installation Instructions)


  • Insulation under the concrete slab
  • Fast and efficient installation
  • 4’ x 4’ molded boards
  • Multi-directional anchoring for 1/2” (13 mm) pipes
  • Ship lapped/interlocking on all 4 sides
  • Superior Performance Values - 2 1/2" (64 mm) board up to R-10
  • 4" (100 mm) board up R-16 available by special order only
  • Lightweight and easy to handle
  • Increased comfort & energy savings
  • Eco-Friendly - no CFCs or HCFCs
  • 100% recyclable
  • Resistant to water and moisture
  • Can contribute to points under  LEED®  NC Programs
  • HydroFoam
  • HydroFoam with pipe
  • HydroFoam interlocking/ship lapped
  • HydroFoam floor placement
  • HydroFoam pipe placement
  • HydroFoam pipe locking in
  • HydroFoam installation complete
  • HydroFoam concrete placement
  • HydroFoam concrete complete

  North America 866-468-6299 International +1 705-726-9499