Our premium insulated duct has a double ply, metalized polyester vapor barrier with Tri-Directional reinforcements.
UPC #030 Double ply polyester core. R-Value = 4.2
Rated Positive Pressure: 10 w.g. per U.L. 181
Recommended Operating Pressures: 6″ w.g. pos., 4″-12″ dia., 4″ w.g. pos., 14″-20″ dia.; 3/4″ w.g. neg., all dia.
Velocity: 5,000 FPM
Standard Diameters: 4″-20″
Flame Spread/Smoke Developed: Less than 25/ Less than 50
Standard Lengths: 25 feet
*R-Values are classified by Underwriters Laboratories Inc., in accordance with the ADC Flexible Duct Performance and Installation Standards (1991) using ASTM C-518 at installed wall thickness on flat insulation only.
Code Compliance UL 181, NFPA 90A & 90B, SBCC, ICBO, BOCA, HUD 515-2.1(b)