Exterior lighting systems includes any and all lighting on the project site, including parking lot lighting, illuminated walkways, architectural lighting, signage, and flagpole lighting.
Interior lighting that does not have a direct line of sight to the building envelope is exempt from the credit. Three sets of exemption guidelines are detailed in the LEED Reference Guide which explain how to measure the distance and angle of lighting fixtures from windows to determine if any of your fixtures may be excluded.
If your building automation system does not continuously measure outdoor airflow, you should still be able to measure airflow accurately by performing a duct traverse with a pitot tube. If the system’s configuration does not allow for a duct traverse (such as with curved ductwork or limited access), anemometer measures can be taken at each air handling unit.
Use native, drought-resistant species in place of turf grass. Convert portions of the site to natural areas that do not require landscaping or additional irrigation. Replace annuals with native or adaptive perennials that require less water. Introduce native understory plants rather than grass turf under trees to reduce the need for additional irrigation.
