Wall Insulation

• Walls must be insulated to one of the following levels:
  1. Enclosed cavities were filled to capacity with dense-pack insulation
  2. Open cavities were filled to capacity with open-cell spray foam
  3. Closed-cell spray foam was applied to within 1.5” of the surface of cavities that were subsequently enclosed
  4. Walls were covered by a minimum of 2” of rigid foam insulation (applied over the studs)
• Batt insulation not eligible for rebates
• Upgrade must be followed by a Building Performance Institute (BPI) Safety Test
• Code-approved fire protection was added to foam insulation when applicable