Multifamily

7. Healthy Living Environment

7.5a Exhaust Fan: Bathroom, New Construction

Mandatory

To ensure effective removal of moisture, install ENERGY STAR®-labeled bathroom fans that exhaust to the outdoors and are equipped with a humidistat sensor or timer, or operate continuously.

Green Communities Recommended Resources

Purchase ASHRAE 62.2 online.

ENERGY STAR Products

• View all products.
• View ENERGY STAR fans.

Minnesota Overlay

The national Green Communities Criteria is modified as follows:

Install low-sone ENERGY STAR-labeled bathroom fans that exhaust to the outdoors and are equipped with a humidistat sensor or timer, or operate while light is turned on, or operate continuously.

Important Considerations

Codes and Regulations

International Building Code 1203.1 General (as amended in 2007 Minnesota Building Code)
Buildings shall be provided with natural ventilation in accordance with Section 1203.4 or mechanical ventilation in accordance with Minnesota Rules, chapter 1346.

International Building Code 1203.4.2.1 (pertaining to naturally ventilated spaces)
Rooms containing bathtubs, showers, spas and similar bathing facilities shall be mechanically ventilated in accordance with the International Mechanical Code.

Specifications

23 34 00 (15830)	Fans
	Specify fans or hoods that are ENERGY STAR labeled. If substitutions are allowed, only allow substitutions that are ENERGY STAR labeled.

The information above refers to the Construction Specification Institute's (CSI) MasterFormat. The numbers listed above refer to some of the most relevant but not all of the possible MasterFormat sections related to this strategy. The 6-digit numbers refer to the newer 2004 MasterFormat edition. Numbers in parenthesis refer to the older 1995 edition.

Other Resources

Publications and Links

See full list of recommended resources and links in our library.

Related Strategies

Q1c:	Ventilate and exhaust for pollution control

Related Scales

Component