ROXUL MONOBOARD® Tapered products are high-density, stone wool commercial insulation board for low slope roof applications available as uncoated or bitumen coated for tapered roofing packages. They are used to create drainage on a low-slope roof to prevent the ponding of water which can lead to water issues.  Additionally, this non-combustible insulation is highly durable, and environmentally sustainable.

It is available in a variety of sizes to meet your design needs for tapered roof systems. Contact your local roofing sales representative to help design the tapered package for your roof and the correct products will be ordered for your system.



Designed for commercial and industrial roof insulation applications, MONOBOARD® Tapered and MONOBOARD® Plus Tapered products allow roof designers to create full tapered systems to allow for proper drainage and movement of water. MONOBOARD® Plus Tapered products are available with a bitumen coating for torch, hot mopped or cold-applied systems.
Also available are CANT Strips for perimeter edges and flute fillers for acoustic systems


ROXUL provides panels for simple tapered packages, for more complex tapered packages contact one of our ROXUL PROTECTED™ partners, ModulR.


  • Non-combustible
  • Available tapered to zero
  • Dimensionally stable
  • High impact resistance
  • Non-corrosive
  • Stable R-value
  • Fire resistant
  • Excellent acoustical properties
  • Made from natural & recycled materials
  • ROXUL can contribute to earning LEED® points