Description
For constructing return air duct between joist and stud cavities. Corrugated insulation faced with aluminum.
- A high quality sheet metal alternative
- Reduces duct noise
- Air space provides positive R-value.
- Stapling as directed results in a tight plenum air seal.
- Enviro-friendly
- Made from recycled products.
- Moisture treated against dampness.
- All popular joist size.
- Will not sustain combustion.