Items to Avoid

• Do not proceed if the crawlspace is damp or water is present on the floor.
• Do not use exposed foam where fire protection of combustibles is needed. Cover foam with gypsum board where required or consider using noncombustible rigid mineral wool insulation with an airtight facer.

Items to Incorporate

• Seal around all penetrations in the crawlspace walls.
• Use spray foam and rigid foam board at the joists to achieve higher insulation levels and a proper air seal.
• Ensure there is adequate air circulation from within the living space down into the crawlspace, to allow the space to be conditioned as interior space. This may include mechanical ducting or simply a pass-through grill.