Features:

·   No shop fabrication, user friendly - no cut hands.

·   No 'oil canning' or duct noise.

·   Air space provides positive R-value.

·   Stapling as directed results in plenum air seal tighteR.

·   Enviro-friendly.

·   Made from recycled products.

·   Moisture treated against dampness.

·   Pre-formed headers (regular joists and I-joists).

·   Will not sustain combustion.