Use commissioning to confirm that installed systems are providing the outside air rates specified in the design.

Coordinate the installation of mechanical systems with the project’s commissioning process.

Use this checklist prior to construction for mechanical systems and credit compliance:

If natural ventilation strategies are integrated into the design, ensure that key elements of the natural ventilation system, such as operable windows, window actuators, controls, operable atrium elements, and solar chimneys, are not compromised during value engineering. Educate decision-makers about the natural ventilation design and the importance of maintaining all the key components. If these elements are altered in a way  that compromises natural ventilation rates, the mechanical system may no longer be sized appropriately.

Fill out the LEED credit form and upload all supporting documents to LEED Online

For naturally ventilated spaces, confirm compliance with the requirements of the CIBSE Applications Manual 10-2005, Natural Ventilation in Non-Domestic Buildings.

For mechanically ventilated spaces, run final ventilation calculations to verify that the design exceeds ASHRAE 62.1-2007 by 30%.

In naturally ventilated multifamily buildings, air infiltration from a pressurized hallway or corridor can contribute to the Ventilation Rate Procedure calculation for areas that do not meet the requirements of ASHRAE 62.1, as long as the corridor is pressurized with outdoor air.

The surface area of window openings must be equal to or greater than 4% of the total floor area that the design considers naturally ventilated. Multiple windows can provide the operable area needed to meet the requirements.

The calculation for operable openings will only apply to the floor area adjacent to the window: 25 feet to either side and in front of the opening.