Division 22 23 Ebook Page 151 QuietR® Duct Board Product Data Sheet

Product Data Sheet QuietR Duct Board must withstand UL 181/ULC S110 tests such as errosion, pressure loss, impact, collapse, puncture, static load and fire retardancy (30 minute flame penetration test). Also, to qualify as a Class 1 Air Duct System, the following UL 723/ULC S102 fire testing requirements must be met: Flame spread, 25; Smoke developed, 50. Limitations Fiber glass ducts should not be used in the following applications: A. Kitchen or fume exhaust ducts, or to convey solids or corrosive gases; B. In concrete or buried below grade; C. Outdoors; D. As casings and/or housings of built-up equipment; E. Immediately adjacent to high temperature electric heating coils without radiation protection; F. For vertical risers in air duct systems serving more than two stories in height; G. With coal or wood fueled equipment, or with equipment of any type which does not include automatic maximum temperature controls; H. In variable air volume systems on the high pressure side unless reinforced to withstand the full fan pressure; I. As penetrations in construction where fire dampers are required, unless the fire damper is installed in a sheet metal sleeve extending through the fire wall; or J. When the duct system is located in non-conditioned space and is used for cooling only (when heating is from another source), unless all registers which would allow moist air into the duct system are vapor sealed during the heating season to prevent condensation from forming inside the duct. Technical Information Fabrication and installation of fiber glass Duct Systems shall be in accordance with the UL listing and shall conform to Owens Corning's published methods and/or latest editions of NAIMA (North American Insulation Manufacturers Association) Fibrous Glass Duct Construction Standards or SMACNA (Sheet Metal and Air Conditioning Contractors National Association) Fibrous Glass Duct Construction Standards. One of the following closure methods must be employed to meet the requirements of UL 181/ULC S110. USE OF A NON-LISTED CLOSURE SYSTEM VOIDS THE UL CLASS 1 AIR DUCT RATING. 1. Pressure-Sensitive Tape Any tape listed and labeled under UL 181A, Part I (P). a. All longitudinal and Thermal Performance 1" (25mm) 1 " (38mm) 2" (51mm) R-value, hrft 2 F/Btu (RSI, m 2 C/W) 4.30 (0.76) 6.50 (1.15) 8.70 (1.53) k-value, Btuin/hrft 2 F (W/mC) 0.23 (0.033) C-value, Btu/hrft 2 F (W/m 2 C) 0.23 (1.32) 0.16 (0.87) 0.12 (0.65) Mean temperature is the average of two temperatures: that of the air inside the duct and that of the ambient air outside it. Note: Specified design thickness should be adequate to prevent exterior surface condensation. Acoustical Performance Sound absorption coefficients at octave band center frequencies, Hz. Type 125 250 500 1000 2000 4000 NRC Type 475, 1" (25mm) 0.08 0.19 0.69 0.94 0.99 0.98 0.70 Type 800, 1 " (38mm) 0.12 0.33 0.92 1.04 1.03 1.02 0.85 Type 1400, 2" (51mm) 0.14 0.72 1.15 1.12 1.06 1.07 1.00 These data were collected using a limited sample size and are not absolute values. Therefore, reasonable tolerances must be applied. Tests were conducted in accordance with ASTM C423, Mounting A (material placed against a solid backing). Product Availability QuietR Fiber Glass Duct Board is available in the following forms: Type Thickness Density, pcf (kg/m 3 ) Type 475 1" (25mm) 4.4 (70) Type 800 1 " (38mm) 3.8 (61) Type 1400 2" (51mm) 3.8 (61) Type designates board stiffness defined by flexural rigidity. Type selection depends on duct size, pressure and reinforcement schedule. The 1 " (38mm) and 2" (51mm) thickness provides superior thermal value.

Previous Page
Next Page