Spray foam (spray can or two-part) and/or polyurethane sealant
Batt insulation
Blown-in or batt attic insulation
Pre-formed insulation baffles
Homeowner Tip
The attic floor should not be used for storage unless a platform is constructed above the insulation. Any compressed insulation should be re-fluffed to the original depth if the attic floor is walked on.