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Products / Insulation Products
Rigid Insulation Rock Board
  • Fire resistant, non-combustible product
  • Melting point of approximately 2150°F (1177°C)
  • Water and moisture resistant, repels water
  • Does not rot, promote mildew, fungi, or bacteria, or sustain vermin
  • Unique directional fiber structure provides excellent sound control
  • Provides superior compressive strength for job site durability
  • Easy to install, cut, shape, and fabricate
  • Fabrication at different densities maintains fire, water, and thermal properties
  • Offered faced with reinforced foil


The RockBoard® is a premium semi-rigid stone wool insulation board with low thermal conductivity.


This product is a multi-purpose board to be used in walls, ceilings, and floors.

RockBoard® comes in various densities for different applications:


  Actual Density Typical applications
RockBoard™ 35 3.5lb/ft3 Parking garage underdecking
RockBoard™ 40 4 lb/ft3 Mechanical rooms, General purpose 
RockBoard™ 60 6 lb/ft3 Metal roof requiring snow load
RockBoard™ 80 8 lb/ft3 Surfaces requiring wind load such as substrate for stucco walls

For complete technical data, please consult our Technical Library.