100002041
Replace first bullet with "Determine the required amount of continuous ventilation using the following ASHRAE 62.2 equation:"
Homes-v4 EQc1: Enhanced ventilation
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Credit language
© Copyright U.S. Green Building Council, Inc. All rights reserved.
Requirements
Option 1. Enhanced Local Exhaust (1 point)
Use one of the following strategies in every bathroom with a shower, bathtub, or spa (i.e., half-baths are exempt) to control the use of the local exhaust fan:- an occupancy sensor;
- an automatic humidistat controller;
- a continuously operating exhaust fan; or
- a delay timer that operates the fan for at least 20 minutes.
AND/OR
Option 2. Enhanced Whole-House Ventilation (2 points)
Install a balanced whole-house ventilation system (not just exhaust only or supply only) that meets the minimum ventilation requirements of ASHRAE Standard 62.2–2010, Sections 4 and 7, or local equivalent whichever is more stringent. Program the system such that it does not exceed the standard’s requirements by more than 10%. For multifamily buildings, meet the above requirements for all in-unit residential spaces in both options 1 and 2. See all forum discussions about this credit »What does it cost?
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Addenda
04/01/2016– Updated: 05/01/2016
Reference Guide Correction
Description of change:
Inquiry:
Ruling:
Campus Applicable
No
Internationally Applicable:
No
Credit language
© Copyright U.S. Green Building Council, Inc. All rights reserved.
Requirements
Option 1. Enhanced Local Exhaust (1 point)
Use one of the following strategies in every bathroom with a shower, bathtub, or spa (i.e., half-baths are exempt) to control the use of the local exhaust fan:- an occupancy sensor;
- an automatic humidistat controller;
- a continuously operating exhaust fan; or
- a delay timer that operates the fan for at least 20 minutes.
AND/OR
Option 2. Enhanced Whole-House Ventilation (2 points)
Install a balanced whole-house ventilation system (not just exhaust only or supply only) that meets the minimum ventilation requirements of ASHRAE Standard 62.2–2010, Sections 4 and 7, or local equivalent whichever is more stringent. Program the system such that it does not exceed the standard’s requirements by more than 10%. For multifamily buildings, meet the above requirements for all in-unit residential spaces in both options 1 and 2. See all forum discussions about this credit »Addenda
04/01/2016– Updated: 05/01/2016
Reference Guide Correction
Description of change:
100002041
Replace first bullet with "Determine the required amount of continuous ventilation using the following ASHRAE 62.2 equation:"
Inquiry:
Ruling:
Campus Applicable
No
Internationally Applicable:
No