JM Micro-Aire® Type 475 Fiberglass Duct Board, Insulation Thickness: 1 in, Material: Fiberglass, Facing Type: FSK, Length: 10 ft, Width: 48 in, R-Value: 4.3, Application: For Fabrication Into Rectangular Ductwork, Heating, Ventilating and Air Conditioning Systems in New Commercial or Residential Construction or for Renovating Older Sheet Metal Systems, Hot Service Applications, Temperature Rating: 250 deg F, Water Vapor Permeability: <0.02 perm-in, Water Vapor Sorption: <5 %, Flame Spread Index: 25, Smoke Developed Index: 50, Thermal Conductivity: 0.23 Btu-in/hr-sq-ft-deg F
Application : For Fabrication Into Rectangular Ductwork, Heating, Ventilating and Air Conditioning Systems in New Commercial or Residential Construction or for Renovating Older Sheet Metal Systems, Hot Service Applications
Facing Type : FSK
Flame Spread Index : 25
Insulation Thickness : 1 in
Item Name : Fiberglass Duct Board
Length : 10 ft
Material : Fiberglass
R-Value : 4.3
Smoke Developed Index : 50
Sub Brand : Micro-Aire
Temperature Rating : 250 deg F
Thermal Conductivity : 0.23 Btu-in/hr-sq-ft-deg F
Type/Style : Type 475
Water Vapor Permeability : <0.02 perm-in
Water Vapor Sorption : <5 %
Width : 48 in
Johns Manville Micro-Aire duct board is used to fabricate ducts for commercial and residential construction and delivers excellent acoustical and thermal performance. It is produced using our dedicated manufacturing process that results in increased product consistency for efficient fabrication. Micro-Aire flexibility and design saves contractors weight and cost. In addition, installed Micro-Aire has less air leakage compared to metal ducts, which provides building occupants with more consistent temperatures, improved comfort and energy efficiency.
- Durable airstream surface
- Low resistance to air flow
- Quiet operation
- Will not support microbial growth
- Cleanability
- Friendlier feel
Standards/Certifications: ASTM E84|CAN/ULC S102|CAN/ULC S110M|CGSB 51.10-92|ICC Compliant|International Mechanical Code|New York City MEA 237-86M|NFPA 90A|NFPA 90B|UBC|UL 181|UL 723
Installation Instructions
