Commercial Kitchen Exhaust Duct Material

506 4 1 ducts ducts and plenums serving type ii hoods shall be constructed of rigid metallic materials.
Commercial kitchen exhaust duct material. Inventors of the positive pressure chimney system selkirk products meet and exceed the requirements of codes and other manufacturer products. For a variety of reasons code ordinance nuisance there may be a desire to filter this exhaust before it is allowed to contaminate the outdoor air. The dishwasher fan should be an alu minum unit. Let s see 1500 cfm 1500 cfm yup that s a need to at least an additional 4 tons of ac.
Comercial kitchen exhaust duct material selection hi this is my first post. Commercial kitchen exhaust systems serving type ii hoods shall comply with sections 506 4 1 and 506 4 2. 2009 international building and mechanical code. Single wall kitchen exhaust vent metal fab grease duct products are manufactured in a strictly controlled environment that enhances product precision reliability and safety.
The exhaust duct should be liquid tight and pitch back toward the dishwasher. Leading manufacturer of chimney venting and air distribution products for commercial and residential hvac industries for over 80 years. He is using plane carbon steel duct work to extract steam from a. This is a design review checklist for code.
Our innovative product offerings are designed to meet the changing needs of the industry. Commercial kitchen hoods types 1 2 design guidance. We hired a hood sub contractor that i am having great difficulty with. But you should upsize your heating and cooling systems to accommodate the make up air.
Grease ducts serving type i hoods shall be constructed of steel having a minimum thickness of 0 0575 inch 1 463 mm. Duct construction installation bracing and supports shall comply with chapter 6. Commercial food service equipment. A hood over the kitchen appliances a run of grease duct and an exhaust fan blower.
Commercial kitchen hood ventilation ducts and exhaust equipment shall be in compliance with nfpa 96 2014 which is the standard of the national fire. The design incorporates an innovative flanged design for easy assembly and sealed with a high temperature silicone sealant. Metal fab commercial venting products division offers the most complete line of chimneys vents special vent for condensing appliances fume exhausts engine exhausts and factory built kitchen ventilation systems available. Requirements for commercial kitchen hoods including grease ducts and their connections to hood and roof exhaust fans exhaust fan details make up air details and suppression.
The exhaust ductwork should be stainless steel below the kitchen ceiling and either stainless steel or aluminum above the ceil ing. So the mechanical engineer on the job should be spec ing out the materials. All models are tested and listed to ul 1978. I am the job super for a new restaurant.
Restaurants and other commercial kitchens exhaust the grease smoke and other harmful contaminants that they produce through a source capture system that in most instances consists of. 506 3 1 1 grease duct materials.