Bathroom Exhaust Fan Requirements
Bathroom venting codes vent fan codes bathroom ventilation requirements summary.
Bathroom exhaust fan requirements. Proper bathroom vent exhaust fan placement becomes critical if you have any sources of hot moist air in the bathroom area tub shower steam room etc and the best strategic vent location would be directly above or as close as possible to that source but still high up. The exhaust fan removes moisture and humidity from your bathroom. Ventilation fans in the bathroom quickly clear steamy mirrors and create a comfortable environment for starting and ending the day. A bathroom fan is an essential piece of hardware in any indoor bathroom without a window.
This keeps the moisture from the shower bath or sink from encouraging mold growth. The model building codes adopted by most jurisdictions typically require bathroom ventilation to be provided either by an operable window 3 sq. The formula to calculate bathroom exhaust fan size reads as follows. Bathroom extractor fans are mandatory in any bathroom without a window and still highly recommended in bathroom with windows.
How to install a bathroom vent fan. Surprisingly bathroom fans are not required by some building codes. Bath exhaust vent fan sizing noise rating choices. Why you need to have the proper size extractor fan.
The nutone white 50 cfm exhaust bath fan the nutone white 50 cfm exhaust bath fan with light combines efficient air circulation and up to 100 watts of illumination in one easy installation. Exhaust air from bathrooms and toilet rooms shall not be recirculated within a residence or to another dwelling unit and shall be exhausted directly to the outdoors just remember the goal of a bathroom fan is to exhaust obnoxious gasses moisture resulting in a healthier safer living environment. This article series explains why bathroom vent fans are needed and describes good. And for proper bathroom ventilation your exhaust fan needs to vent outside not into the attic or another area of the house.
All municipalities have different requirements but some do not draw a hard line on requiring exhaust fans. Or greater or by mechanical means a bathroom vent fan 20 continuous or 50 cfm intermittent vented to the. Bathroom code does address the issue of moving odor and moisture laden air from the bathroom to the outside. The fan and light operate separately or together and are housed in a classic white design that complements any decor.
Bathroom vent fan size noise level choices specifications. Here we explain how to determine the necessary capacity in cfm for a bathroom exhaust fan. Cubic volume 7 5 cfm necessary. Per m1507 2 recirculation of air.
Without properly installed ventilation rooms with high humidity can experience paint or wallpaper peeling or costly damage to drywall and wood structures.