RSI, R Value Calculator

Enter the R value to find the RSI value:


Enter the RSI value to find the R value:


Rainscreen. Insulation. Easy!

Meet the New Energy Code with the Fastest, Easiest, Best-Performing, High-Energy Efficiency Rainscreen Wall!

Three building code-exceeding products

Depending on your local building code, different insulation value requirements may apply. Use the Vertibreak® products below, to meet these zones as described in the National Building Code of Canada, the Vancouver Building Bylaw, and others.

View Effective Insulation Value of System Document for more information on the Vertibreak® products applicable in each zone.
View What Zone am I? (Canadian Zones)

NOTE: Other thicknesses and grades available


  • Fibre cement
  • Wood siding
  • Wood composite siding
  • Fibre cement shingles
  • Wood shingles
  • Vinyl
  • Stucco
  • Thin veneer stone
  • ...and more!

Get a customized quote for your stock needs 1-877-337-2802 or Email Us