Apartment Kitchen Ventilation

Cross ventilation in apartments.

Apartment kitchen ventilation.

I m a homeowner that is renovating a kitchen in a 200 yo home in nh. Because ventilation requirements vary from state to state and even from city to city it s important to check with local. Some state building codes do require mechanical ventilation such as an exhaust fan in the kitchen. Or pre conditioned air is ducted to the individual apartments via a roof mounted outdoor.

Moreover code watcher advises that since 2009 the international residential code irc includes a section on air replacement for houses with active kitchen ventilation. Ashrae 62 1 ventilation for iaq mf 4 stories fresh air table 6 1 5cfm person 0 6cfm sf local exhaust table 6 4 k 100cfm int 50 cfm cont. B 50 cfm int 25 cfm cont kitchen exhaust not req d for mf windows count for 25 deep units best for mf common areas regardless of height. The nyc mechanical code allows a combined exhaust system for the kitchen and bathroom the injectors providing the outdoor air supply for each corridor must provide an airflow that balances with the combined exhaust of all individual apartments.

Mechanical ventilation is a more traditional design approach that supplies outdoor air to the individual apartments via a ducted mechanical system. Bathroom extractors deal with the entire ventilation load of each apartment and they must be sized accordingly. I live in a condo that was built in 1970 with no whole house mechanical ventilation but that s another story in high rise buildings wind and stack effect often render mechanical ventilation strategies useless especially for the lower parts of the building. Condominiums and apartments present some serious challenges when it comes to providing ventilation for good indoor air quality.

Outdoor air is supplied directly to the unit s air handling unit via individual inlets at each apartment and conditioned with the rest of the return air.