RR4.2 RIP STOP FLEXIBLE FOIL SILVER BOXED AIR DUCT - 25 FT

Johns Manville Formaldehyde-free™ fiber glass insulation GREENGUARD® certified insulated products:
Galvanized or bronze metal core reinforcing
Oversized core to fit on collars and register boxes
Weather-resistant packaging
Easy-to-carry package: Up to 10" bags are strapped to form a pair
HUD /FHA standards 515.2.1, paragraph B
NFPA standards 90A and 90B
Meets most BOCA, City of Chicago, federal, state and local codes and standards
UL listed/approved to UL 181
Fiberglass
R6.0 and R8.0 certified by UL and the Air Diffusion Council using ASTM C-518 at installed thickness of insulation
Made of formaldehyde free materials
Surface Burning Characteristics

Flame spread: Less than 25
Smoke developed: Less than 50

Vapor Barrier
The Quietflex Rip Stop Silver Jacket has a metalized polyester-vapor barrier with a special “rip stop” scrim reinforcement
Vapor Transmission: at or below 0.05 perms
Operating Temperature Range
-20˚F to 180˚F - Continuous
-20˚F to 200˚F - Intermittent
Core

Two layers of polyester film encapsulate a galvanized or bronze coated wire helix
Rated positive pressure is 10" W.C. and negative pressure is 1/2" W.C. per the UL 181 standard
Rated maximum air velocity is 6000 FPM