Performance Option 

The compliance forms are not required by LEED Online, but it is a good practice to complete them during design development to use as a checklist for the project team and keep them until the project receives LEED certification. 

All ASHRAE compliance forms should be completed during the design phase to track status and compliance whenever changes are made. 

Continue to verify that the prescriptive requirements of ASHRAE 90.1-2007, Sections 5–10, are being met throughout changes in the design development phase.  

Prescriptive Option

Constant communication among project team members throughout the design process is important for minimizing construction and operational costs and meeting the project’s goals. For example, changing a specification, such as the solar heat gain coefficient of glazing, affects mechanical system sizing. These opportunities should be discussed with the team and incorporated into the design.

ASHRAE 90.1-2007 – Prescriptive Option or Performance Option

Continue to verify that the mandatory and minimum requirements of ASHRAE 90.1–2007, Sections 5–10, are being met throughout changes in the design development phase.  

ASHRAE 90.1-2007 – Mandatory Requirements 

The mechanical team should meet with the base building’s engineer or manager early in the process to get detailed information on the potential to add controls, outside air intakes, and to make efficiency modifications to base building systems.