atmosphere.knaufinsulation.usAtmosphere Air Duct Board | Knauf Insulation

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Learn more Duct Board Insulation / Atmosphere Air Duct Board Atmosphere™ Air Duct Board Excellent acoustic and thermal characteristics make for quiet, efficient air delivery. Unwanted “booms” and “cracks” caused by sheet metal ducts, minimized. This formaldehyde-free board with a lightweight non-woven brown mat on the airstream surface is made with ECOSE ® Technology. Applications HVAC Certifications Data Sheet (0.45MB PDF) Safety Data Sheet (1.67MB PDF) View All Downloads BIM (REVIT) Product Features Proven Performance Engineered for high thermal and acoustical performance. Helps maintain temperatures and reduce noise generated by air turbulence and mechanical equipment. ECOSE® Technology Our patented, bio-based binder is a smarter alternative to using phenol formaldehyde. It’s been foundational in our commitment to sustainability. For the world we live in. Versatile Fabrication Simple, streamlined fabrication — done in shop or on the job site. Multiple sizes, minimal capital requirements and only one trade is required to fabricate and install. Product Details Technical Data Technical Data Property (Unit) Test Performance Corrosiveness ASTM C665 Does not accelerate corrosion of steel (Insulation) Corrosion ASTM C1617 Pass (Insulation) Maximum Service Temperature ASTM C411 250° F (121° C) (Insulation) Wator Vapor Permeance ASTM E96, Procedure A 0.02 perms or less Water Vapor Sorption (by weight) ASTM C1104 Less than 5% Flexural Rigidity NAIMA AHS-100-74 Available in 2 stiffness values: El-475 and El-800; Flexural rigidity (El) is the product of Young's modulus of elasticity (E) and moment of inertia (I) Air Velocity UL 181 Max. 5,000 ft./min. (1,524 m/min.) Tested to 12,500 ft./min. (3,810 m/min.) Internal Static Pressure UL 181 Maximum ±2" water (498 pascals [Pa]) Microbial Growth ASTM C1338, ASTM G21, UL 181 Pass, does not support the growth of fungi or bacteria Surface Burning Characteristics (flame spread/smoke developed) ASTM E84, UL 723 FHC 25/50; UL Listed Forms Available Forms Available Type Size* Edge Pieces/Carton** EI-475 1" (25 mm) 48" x 96" (1219 mm x 2438 mm) Shiplap 8 EI-800 48" x 120" (1219 mm x 3048 mm) Butt, Shiplap 6 EI-800 1.5" (38 mm) 48" x 120" (1219 mm x 3048 mm) Shiplap 4 2" (51 mm) 48" x 120" (1219 mm x 3048 mm) Butt, Shiplap 3 *Other lengths available on custom order basis. **Palletized packaging available on request. Thermal Resistance R & Thermal Conductivity K Thermal Resistance R | ASTM C518 Mean Temperature 75° F (24° C) Thickness R-Value (R.S.I) 1" (25 mm) 4.3 (0.76) 1.5" (38 mm) 6.5 (1.14) 2" (51 mm) 8.7 (1.53) “R” Units ft2 ∙ hr ∙ ˚F BTU m2 ∙ ˚C W) Thermal Conductivity K | ASTM C177 Mean Temperature 75° F (24° C) K-Value EI-475 and EI-800 0.23 (.033) “k” Units BTU ∙ in ft2 ∙ hr ∙ ˚F W m2 ∙ ˚C) Sound Absorption Coefficients Sound Absorption Coefficients | ASTM C423, Type A Mounting Octave Band Center Frequency (Cycles/Sec.) Thickness 125 250 500 1000 2000 4000 NRC 1" (25 mm) 0.03 0.25 0.62 0.92 1.03 0.97 0.70 1.5" (38 mm) 0.02 0.44 0.96 1.17 1.16 1.12 0.95 2" (51 mm) 0.19 0.64 1.08 1.13 1.06 1.06 1.00 Friction Loss & Recommended Maximum Duct Dimensions Without Reinforcement Friction Loss Ft./min. Hydraulic Diameter Velocity 10" 16" 24" 32" 40" 72" 100" 500 0.056 0.031 0.018 0.012 0.009 0.005 0.003 600 0.077 0.042 0.025 0.018 0.013 0.007 0.004 700 1.04 0.57 0.034 0.24 0.018 0.009 0.006 800 0.134 0.074 0.044 0.031 0.023 0.011 0.008 900 0.169 0.093 0.056 0.039 0.029 0.014 0.010 1000 0.207 0.114 0.068 0.048 0.036 0.018 0.012 2000 0.806 0.443 0.266 0.186 0.141 0.069 0.046 3000 1.797 0.988 0.594 0.415 0.315 0.153 0.103 4000 3.179 1.748 1.050 0.734 0.557 0.271 0.181 5000 4.952 2.724 1.636 1.143 0.867 0.422 0.283 Recommended Maximum Duct Dimensions Without Reinforcement* Internal Pressure Inches of Water EI-475-1" EI-800-1", 1 ½ ", 2" 13⁄16" 0.5 (125) † 1.0 (249) † 2.0 (498) † 0.5 (125) † 1.0 (249) † 2.0 (498) † 0.5 (125) † 1.0 (249) † Positive 36" (914 mm) 24" (610 mm) 15" (381 mm) 36" (914 mm) 24" (610 mm) 18" (457 mm) – 22" (558 mm) Negative 34" (864 mm) 24" (610 mm) 14" (356 mm) 36" (914 mm) 24" (610 mm) 18" (457 mm) 22" (558 mm) – *This table summarizes span/pressure limitations for unreinforced duct. For larger ducts, refer to NAIMA’s “Fibrous Glass Duct Construction Standard,” or Knauf Insulation's Air Duct Fabrication Manual. † (Pressure—Pascals [Pa]) All Product Resources January 2020 (PDF / 0.45MB) Data Sheet - Atmosphere Air Duct Board July 2011 (PDF / 0.15MB) UL Environmental Claim Validation - Formaldehyde Free - Atmosphere Air Duct Board November 2009 (PDF / 0.29MB) GREENGUARD Gold -Atmosphere Air Duct Board November 2009 (PDF / 0.28MB) GREENGUARD - Atmosphere Air Duct Board December 2019 (PDF / 1.67MB) Safety Data Sheet - Atmosphere Air Duct Board August 2012 (PDF / 0.16MB) UL Environmental Claim Validation - Recycled Content - Atmosphere Air Duct Board November 2015 (PDF / 0.16MB) UL Environmental Claim Validation - Mold Resistance - Atmosphere Air Duct Board September 2018 (PDF / 0.21MB) Submittal Sheet - Atmosphere Air Duct Board September 2017 (PDF / 0.15MB) Sell Sheet (Contractor) - Atmosphere Air Duct Board Need More Product Support? Reach out to our technical support team for product specs, installation guidance and more. Contact Tech Support Helpful Videos Glass Master Thickness Setup for Air Duct Boards Glass Master Spacing Setup for Air Duct Boards What is Glass Mineral Wool or Fiberglass Insulation Related Products Eclipse® Air Duct Board Used to fabricated air duct systems, this board provides excellent acoustic characteristics to help minimize noise. Applications HVAC Thickness 1"; 1.5"; 2" R-Value 4.3; 6.5; 8.7 Stiffness EI-475; EI-800 View Product Atmosphere™ Duct Liner Designed to offer excellent sound absorption, temperature control ...