Spiracoustic Plus™
The Spiracoustic Plus™ System from Johns Manville is a comprehensive group of duct lining products specifically engineered to provide very high acoustical and thermal performance in round air ducts of virtually any size.
Based on high-density fiber glass board technology, Spiracoustic Plus has factory-made, evenly-spaced kerfs to allow the material to conform to the inside diameter of round air ducts. The airstream surface and transverse edges are coated with Johns Manville's proprietary black Permacote® acrylic polymer. The coating is treated with an immobilized protective agent, specifically registered with the EPA for HVAC duct applications, to protect the coating against potential microbial growth.
Spiracoustic Plus eliminates the need for costly double-wall insulation practice in round air ducts, and provides consistent thermal and acoustical performance throughout.
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