For plant selection in PW-2.1: Exterior Water Use reduction, what is the maximum average irrigation demand to receive minimum credit points?

For the PW-2.1 credit under the Pearl Building Rating System (PBRS), plant selection is critical to reducing exterior water use. The minimum credit points are awarded to projects that manage to keep their average irrigation demand at or below a specified limit. In this case, the maximum average irrigation demand allowed to receive minimum credit points is 4 liters per square meter per day.

This threshold encourages the use of drought-resistant and native plant species which require less water for maintenance, promoting sustainable landscape practices. By adhering to this benchmark, projects contribute to the overall reduction of water consumption and support the objectives of environmental sustainability as outlined in the PBRS. The emphasis on maintaining this specific irrigation demand aligns with the broader goals of resource conservation and efficient water use in building design and landscaping.