When deciding which range hood is best for your kitchen or if you lot fifty-fifty demand 1, it is of import to review your land’second residential building codes. These codes outline specific criteria that must live met by your range hood depending on the state yous reside inward.
Continue reading to familiarize yourself with the IRC guidelines pertaining to range hoods inward the state of North Carolina.
Range hoods are required by code inwards North Carolina if you install an open-superlative broiler unit. Ranges with integral exhaust systems do not need a range hood. If y'all install a range hood, you lot accept to follow the pattern, installation, ducting, and venting guidelines inwards the code.
IRC: Range Hoods Controlled only Not Required
While the IRC specifies sure criteria that must be met by range hoods, it only explicitly states that reach hoods are required inwards the kitchen if you take a domestic open-meridian broiler (Section M1503.two.one).
Whether yous take to or non, if you lot make take a reach hood, so Section M1503 of the IRC dictates aspects of installation, venting, etc.
For instance, it states that range hoods are required to expel discharge outdoors past the use of a duct. Ducts are required to live made of copper, stainless steel, or galvanized steel. The interior of the duct must have a polish texture, live airtight, take a backdraft damper, and part independently from any other exhaust organisation in the dwelling.
Here are five reasons why it’sec important to have a range hood, even though it’sec not required past code.
Section M1505.four.four of the IRC also outlines specific local exhaust rates required to live met past the reach hood, only these align with the local codes, and so nosotros volition hash out them inwards the sections regarding local codes.
NC Codes Require Metal Exhaust Hoods
Section M1505.1 of the North Carolina Residential Code requires that open-tiptop ranges must take hoods in addition to that these hoods must be made of metallic.
This department besides specifies that broiler units labeled for purpose without a reach hood in addition to that also own an integral exhaust organisation are non required to have an exhaust hood.
An integral exhaust system refers to a specific type of exhaust arrangement that is directly built into the broiler unit.
Because these appliances are equipped amongst their own integral exhaust organization, they do non involve an additional exhaust organization inward home to operate safely. This is the only exception to the rules pertaining to exhaust systems in the kitchen according to the code.
| Minimum Thickness of Metal | 0.0157 inches |
| Minimum Clearance Between Hood together with Underside of Cabinets | ¼ inch |
| Minimum Clearance Between Hood and Cooking Surface | 24 inches |
| Width of Range Hood | Cannot be less than the width of the broiler unit together with must extend over the entire broiler unit |
For data on insulating the ducting, yous tin visit Should Range Hood Duct Be Insulated.
Kitchen Range Hood Minimum Exhaust Rate
In North Carolina, your kitchen range hood is required to run across a minimum exhaust rate in lodge to abide by the code regulations stated inward Section M1507.iv. For i together with ii-family unit dwellings, the minimum exhaust charge per unit for a kitchen reach hood is 100 CFM intermittent or 25 CFM continuous.
“CFM” is terminology that refers to how many cubic feet of air an exhaust fan can move per infinitesimal. An intermittent exhaust organisation entirely operates when it is turned on, too a continuous exhaust organization operates throughout the solar day without having to be turned on or off.
Related article: Reasons Why A Range Hood Is Not Effective
Make-upward Air Requirements for Range Hoods
North Carolina provides make-up air requirements pertaining to range hoods inward the kitchen that are listed. These are found inwards Section M1503.4. Make-upward air refers to air that is utilized to supersede the air that has been removed by the range hood.
Any range hood capable of producing more than 400 CFM is required to have make-upwardly air supplied to the surface area at a rate equal to that of the exhaust fan. Make-up air systems are required to be enclosed and postulate to live controlled automatically to work at the same time every bit the exhaust organization.
If all of the appliances inwards your habitation are unvented, electrical, direct vent, or power-vent, a brand-upwards air organization is solely required if your exhaust fan pushes more than 600 cubic feet of air per infinitesimal.
Related article: Is a Range Hood Required past Code In California
Sources
https://www.aldes-na.com/residential-ventilation/homebuilders/builder-faq/
https://www.cambridgeair.com/brand-upwards-
air#: :text=Make%2Dup%20air%20is%20designed,air%20that%20cannot%20be%20recirculated.