Grease Exhaust Height Above Roof

Roof deck to top of curb 18 min.

Grease exhaust height above roof.

Provide specifications and installation detail for the grease duct wrap. A listed grease duct in accordance with section 507 4 7 or ductwork in accordance with section 507 4 8. Provide a light test for grease duct prior to enclosing or concealing. How the exhaust fan termination to be a s minimum 40 above the roof.

From all exhaust fans. Make sure the hood is level. Show the exhaust fan termination to be a minimum 40 inches above the roof. Install light bulbs supplied by others light globes and grease filters in the hood.

For applications where the 10 horizontal distance cannot be met separation between exhaust and supply must be at least 3 feet. This creates a deadly fire hazard and liability for your business. Ductwork installation by others 9. Exhaust vents must be protected against rain and equipped with back flow prevention features e g flap dampers.

Ducts conveying explosive or flammable vapors fumes or dusts shall terminate not less than 30 feet 9144 mm from a property line 10 feet 3048 mm from openings into the building 6 feet 1829 mm from exterior walls or roofs 30 feet 9144 mm from combustible walls or openings into the building that are in the direction of the exhaust discharge and 10 feet 3048 mm above adjoining grade. A grease collection device that is applied to exhaust systems that does not inhibit the performance of a fan. Standard z9 5 recommends a minimum stack height of 10 ft above the adjacent roof line an exhaust velocity v e of 3000 fpm and a stack height extending one stack diameter above any architectural screen. One side is hinged with a flexible electrical connector for inspection and cleaning.

Also since your business can be held responsible for polluted storm water systems and grease runoff rooftop grease containment is something you need to control. Location direction or nature of the exhaust. Exhaust collar and the roof curb cap must be welded to the exhaust duct. Rovide a light test for grease duct prior p to enclosing or concealing.

Exhaust vents must not be located where they might be obstructed by drifting snow consult local experience as to the height of snow drifts against buildings. Fats oils and grease are discharged from your upblast hood exhaust fan and collects on your roof. Show how one side is hinged with a flexible electrical connector for inspection and cleaning. Roof deck to top of exhaust fan windband 40 min.

Threaded rods should be 1 2 closer to the back wall at the top hanger so as to pull the hood against the wall. A listed grease collection system that is in accordance with section 510 9 1 4 and section 510 9 1 5.