INTENT
The intent of this Imperative is to demonstrate ongoing high-quality indoor air and a healthy indoor environment.
REQUIREMENTS
To promote good indoor air quality performance, all projects must:
- Provide the results from an Indoor Air Quality test one to six months after occupancy, or provide readings from an ILFI-approved continuously monitored indoor air quality system.
- Comply with the CDPH Standard Method v1.1-2010 (or international equivalent) for 90% of interior building products that have the potential to emit volatile organic compounds (VOCs).
- Implement a cleaning protocol that uses cleaning products that comply with the EPA Safer Choice label (or international equivalent, such as Globally Harmonized System [GHS]).
All projects must provide access to views and daylight from 95% of regularly occupied spaces and opportunities for those occupants in the remaining five percent of regularly occupied spaces to move to compliant spaces for a portion of their day.
In addition, all projects must provide at least two of the following:
- Sufficient operable windows to provide natural ventilation for at least six months of the year.
- Ability for the occupants to influence their local airflow and temperature through direct input or controls.
- Flexible options for working and learning such as sit/stand options and/or varied sensory experiences for living, working or learning.
Residential projects must provide operable windows for 100% of the project occupants.
CHANGES IN FROM LBC 3.1 TO 4.0
The requirements from LBC 3.1 Imperative 07, Civilized Environment and Imperative 08, Healthy Interior Environment have been combined and adjusted in LBC 4.0 and distributed across Imperative 09, Healthy Interior Environment (C5) and this Imperative, Imperative 10, Healthy Interior Performance. Specifically, the LBC 3.1, I07 requirements for operable windows have been altered and moved to LBC 4.0, I10, and the LBC 3.1, I07 requirements for access to daylight have been included in both LBC 4.0, I09 and I10 with varying levels of performance. The LBC 3.1, I08 requirements related to IAQ testing, EPA Safer Choice-labeled cleaning products, and CDPH have been altered and incorporated into LBC 4.0, I10. Additionally, in LBC 4.0, IAQ testing requirements have been reduced to one test, and operable windows, occupant controls, and flexible seating options are included as possible compliance options for occupant control.
