Commercial Kitchen Exhaust Duct Insulation

Leading manufacturer of chimney venting and air distribution products for commercial and residential hvac industries for over 80 years.

Commercial kitchen exhaust duct insulation.

All supply and return air ducts and plenums shall be insulated with a minimum of r 5 r 6 insulation when located in unconditioned spaces and a minimum of r 8 insulation when located outside the building. They are heavily insulated for zero clearance to combustibles and a two hour fire rated shaft assembly. We use insulation to mitigate this risk. R 408 30935a 506 2 corrosion protection.

The grease hood duct from the ceiling to where it exits the building should be enclosed in a fire rated enclosure or approved fire barrier type insulation see 3m or be listed double wall grease duct see metalfab except if the roof where the duct exits is right above the room hood. Unifrax fyrewrap elite 1 5 duct insulation wrap is a flexible enclosure for 1 and 2 hour fire rated commercial kitchen grease ducts range hoods and hazardous exhaust ducts including chemical fume ducts. Inventors of the positive pressure chimney system selkirk products meet and exceed the requirements of codes and other manufacturer products. Therefore it is likely that many commercial cooking exhaust systems do not ex perience significant temperature differences even with non insulated ducts.

For more information about kitchen extract contact us or call 353 1 456 8200. Unlike particle deposition in turbulent airflow turbulent vapor deposition is a well understood and documented phe nomena. Commercial kitchen hood ventilation ducts and exhaust equipment shall be in compliance with nfpa 96 2014 which is the standard of the national fire protection association listed in chapter 15 of the code. Insulation is applied to kitchen ducts as they pass through other compartments.

The zc models are all stainless steel and factory insulated grease duct for use in commercial kitchen exhaust systems which meet the requirements set forth by underwriters laboratories for the ul 2221 standard. Fyrewrap elite 1 5 duct insulation offers the following product features. Installed as a two layer system fyrewrap elite 1 5 complies with the international mechanical code imc and uniform mechanical code umc. A fire in another compartment unrelated to the kitchen could potentially ignite the grease and cause a fire to cascade throughout a building.

Fyrewrap elite 1 5 duct insulation is tested per astm e2336 and is acceptable as an alternate to a traditional fire rated shaft. Insulation on the duct in the kitchen offers no protection.