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The Owens Corning OCLR82X47X50 QuietR Rotary Duct Liner is a fiberglass duct liner designed for use inside sheet metal HVAC ducts. It measures 2 inches thick, 47 inches wide, and comes in a 50-foot roll, providing approximately 195.83 square feet of coverage per roll. This liner carries an R-8 thermal rating, making it well suited for commercial and residential HVAC systems where controlling heat loss or heat gain through duct walls is a priority. HVAC technicians and sheet metal contractors use rotary duct liner to line the interior of rectangular and round duct systems before final assembly. The liner is applied to the inside surface of the duct, where it performs two critical jobs: thermal insulation and sound attenuation. With a Noise Reduction Coefficient of 0.95, this liner absorbs a high percentage of sound energy passing through it. That means less fan noise, less air turbulence noise, and fewer popping or cracking sounds that sheet metal ducts can produce during heating and cooling cycles. The airstream-facing surface is treated with an EPA-registered biocide that resists bacterial and fungal growth, helping protect indoor air quality over the life of the system. This is a key requirement in commercial HVAC applications where IAQ standards must be maintained. The fiberglass construction delivers consistent, long-term thermal and acoustical performance without compressing or deteriorating under normal duct operating conditions. At 2 inches of thickness and an R-8 value, this liner meets common energy code requirements for duct insulation in many climate zones. HVAC contractors, mechanical insulation installers, and sheet metal shops will find this roll-format liner easy to cut, fit, and adhere to standard duct dimensions. The roll weighs approximately 27 pounds, making it manageable for job site handling.
The Owens Corning OCLR82X47X50 delivers high-performance thermal insulation and sound control in a single rotary duct liner product. Its R-8 rating and 0.95 NRC make it a reliable choice for HVAC professionals who need to meet both energy and acoustical performance requirements.
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