Items to Avoid

• Do not use spray foam directly in contact with electrical fixtures or uninsulated wires.

Items to Incorporate

• Use a flexible air seal like a polyethylene sheet, rubber gasket, or flexible tape where movement is expected.
• Seal all penetrations with spray foam where no movement is expected. Ensure all surfaces are clean to achieve sealant adhesion.
  
• Use a fire-rated silicone sealant if sealing electrical boxes in the attic space.