ROXUL COMFORTBOARD™ 80 Commercial Mineral Wool Insulation Board

ROXUL COMFORTBOARD™ 80 is a rigid mineral wool insulation sheathing board that is non-combustible, water repellent, fire resistant and sound absorbent. ROXUL COMFORTBOARD™ 80 is an exterior non-structural insulation sheathing that provides a continuous layer of insulation around the residential building envelope.


This product is specifically engineered as exterior non-structural insulation sheathing for high performance residential wall systems. To view all ROXUL COMFORTBOARD™ 80 applications, click here.


  • Can be easily cut with a breadknife
  • Non-combustible with a melting point of approximately 1177°C  (2150°F)
  • Excellent sound absorbency
  • Vapor Permeable
  • Does not rot or promote 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
  • ROXUL can contribute to earning LEED® points
  •  roxul comfortboard 80