Materials/Tools Needed
- Extruded polystyrene and tape and/or closed-cell spray polyurethane foam
- 15 mil polyethylene sheet and sheathing tape or acoustic sealant
- Tape or sealant compatible with polyethylene and concrete
- Insulation attachment system
Homeowner Tips
Protect the polyethylene sheet with carpet or rubber mats if foot traffic is expected in the crawlspace.