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We ship across Canada and USA. Call us at 1-877-383-2671
We ship to Canada + USA. Call us at 1-877-383-2671

4 inch x 2' x 4' Rockwool Comfortboard 80 (16 square feet per bag)

4 inch x 2' x 4' Rockwool Comfortboard 80 (16 square feet per bag)

by Convoy
Original price $119.99 Original price $119.99
Original price
$119.99 $119.99
Current price $119.99

PLEASE NOTE THE CURRENT LEAD TIME FOR ROCKWOOL COMFORTBOARD IS UP TO MAY-JUNE 2024. Call us at 1-877-383-2671 for more information.

Need Other Sizes? CLICK HERE

ROCKWOOL Comfortboard® 80 Thermal Insulated Sheathing

ROCKWOOL Comfortboard® 80 is a rigid stone wool board designed for continuous insulation applications. A non-structural sheathing product, Comfortboard 80 provides increased thermal performance to the building envelope.

Comfortboard 80 does not produce smoke or propagate flames, providing a critical line of defense that keeps occupants safe and reduces property damage in the event of a fire.

Please note that pricing shown is for the BC market only. We may have different pricing for Rockwool Comfortboard 80 in other provinces. Please call us at  1-877-383-2671  to confirm.


  • Can be easily cut with a bread knife
  • Non-combustible with a melting point of approximately 1177°C  (2150°F)
  • Excellent sound absorbency
  • Vapor permeable
  • Does not rot or promote the growth of fungi or mildew 
  • Low moisture sorption
  • Chemically inert; non-corrosive
  • Water-repellent
  • CFC- and HCFC-free product and process
  • Made from natural & recycled materials
  • ROCKWOOL® can contribute to earning LEED® points


  • Non-structural thermal insulation
  • Basement continuous insulation
  • Exterior perimeter insulation around foundation
  • Under flat concrete slab
  • Residential wood-framed cathedral ceilings