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Performance Characteristics of ThermalStar® Structural Insulating Sheathing

Issue Date: 
Tuesday, July 11, 2023
Updated Date: 
Tuesday, July 11, 2023

ThermalStar® Structural Wall Insulation R3 and ThermalStar® Structural Wall Insulation R5 are approved for:

  1. Use as a Class II vapor retarder.
  2. Use as a water resistive barrier (WRB).
  3. Use as insulated sheathing.
  4. Use to resist transverse loads on wall assemblies used in light-frame wood construction.
  5. Use to resist wind loading.
  6. Use as an alternative to the WSP and CS-WSP wall bracing provisions of the IRC.
  7. Use as an air barrier material.
No. Report Size
CL 2304-06 1.86 MB