{"product_id":"knauf-insulation-522134-rigid-fiberglass-duct-board","title":"Knauf Insulation 522134 Rigid Fiberglass Duct Board","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe KNAUF INSULATION 522134 is a rigid fiberglass duct board with an FSK (foil-scrim-kraft) facing, designed for the fabrication and insulation of rectangular HVAC ductwork. At 1.5 inches thick and measuring 48 inches x 120 inches per board, it provides structural rigidity that allows direct fabrication of supply and return air ducts without a separate sheet-metal liner. The FSK facing acts as an air barrier and vapor retarder on the exterior surface. Licensed HVAC contractors and sheet-metal fabricators are the primary installers of this product.\u003c\/p\u003e\n\u003cp\u003eThis duct board is used in residential and light commercial HVAC installations where fabricated fiberglass duct systems replace or supplement conventional sheet-metal ductwork. It is suited for low-pressure air distribution systems, including supply plenums, trunk lines, and branch ducts. The board's rigidity supports scoring, snapping, and stapling workflows standard in duct fabrication. The ECOSE Technology binder system is a formaldehyde-free bonding agent used in the fiberglass matrix.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e1.5-inch thickness provides structural rigidity for duct fabrication without a metal liner\u003c\/li\u003e\n  \u003cli\u003eFSK facing serves as an integrated vapor retarder and air barrier on duct exteriors\u003c\/li\u003e\n  \u003cli\u003eFiberglass construction with ECOSE Technology formaldehyde-free binder\u003c\/li\u003e\n  \u003cli\u003eLarge board format (48 inches x 120 inches) reduces seam count in fabricated duct runs\u003c\/li\u003e\n  \u003cli\u003eScored and snapped using standard duct board fabrication tools\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an OEM-style replacement and standard supply for low-pressure residential and light commercial fiberglass duct board fabrication applications.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation is performed by licensed HVAC technicians or sheet-metal fabricators following SMACNA Fibrous Glass Duct Construction Standards and applicable local mechanical codes. Shut down and lock out the air handling system before modifying or connecting any duct section. Use a straight edge and duct board knife for scoring; seal all joints with UL 181B-listed pressure-sensitive or heat-activated tape rated for fiberglass duct board. Wear appropriate PPE, including gloves, eye protection, and a dust mask, when cutting fiberglass board.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: Fiberglass\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFacing\u003c\/strong\u003e: FSK (Foil-Scrim-Kraft)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThickness\u003c\/strong\u003e: 1.5 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLength\u003c\/strong\u003e: 120 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWidth\u003c\/strong\u003e: 48 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBinder Technology\u003c\/strong\u003e: ECOSE Technology (formaldehyde-free)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCollection\u003c\/strong\u003e: Performance+\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eStandard Information\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: KNAUF INSULATION\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 522134\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"KNAUF INSULATION","offers":[{"title":"Default Title","offer_id":51344636707122,"sku":"522134","price":203.56,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/310553552.jpg?v=1782038670","url":"https:\/\/voomisupply.com\/products\/knauf-insulation-522134-rigid-fiberglass-duct-board","provider":"Voomi Supply","version":"1.0","type":"link"}