HESP Weatherization

Basement Insulation

  • Basement upgraded by insulating:
    1. Foundation walls from 2 feet below grade to ceiling with minimum 2” rigid or spray foam
    2. Basement or crawlspace ceiling with either dense-pack insulation or minimum 2” of foam
  • Batt insulation not eligible for rebates
  • Upgrade must be followed by a Building Performance Institute (BPI) energy assessment
  • Code-approved fire protection was added to foam insulation when applicable
  • Cost of insulating the basement must be at least $1000 more than the rebate amount