We are a project team working on a university indoor practice facility for football and track teams. We are submitting this credit interpretation for LEED-NC Version 2.2 IEQ Prerequisite 1 Minimum IAQ Performance. We are seeking approval to use the 2006 International Mechanical Code Gymnasium category or ASHRAE Standard 62.1-2004 Health Club category instead of the ASHRAE 62.1-2004 Sports Arena / Gymnasium category because of the unique nature of the facility and the mechanical systems. As demonstrated below, the systems as designed provide 20 cfm per person in heating and 1,000 cfm per person in cooling which we believe is appropriate for best practice ventilation and mechanical system design. The indoor practice field portion of the building consists of a 60 yard football field with an end-zone on one end only, a four-lane 80 yard running track, and perimeter areas. The indoor practice field will be utilized by the football team for two to three hour daily practice sessions and also by the track team at a different time of day schedule. The university has provided the design team with the expected occupancy of 150 people for football practices accounting for players, coaches and associated staff; track team occupancy is much lower. The function of the practice field does not include spectators because the practice sessions are considered private and the use of the facility is limited to these specific functions. The HVAC system for the indoor practice field has two separate systems for heating and cooling. In cooling, or outside air temperatures of 62
The applicant is requesting reclassification of the project space type to demonstrate compliance with ASHRAE 62.1-2004. The requested classification does not apply and for the purposes of LEED, the applicant must meet the requirements of ASHRAE 62.1-2004 Sports Arena or Gymnasium classification. The designer, along with the owner and the local code authority, must determine the occupancy category for the space, not USGBC. Once the occupancy category is established, the zone outdoor airflow must be determined based on the requirements of either ASHRAE 62.1-2004 or the applicable building code, whichever is most stringent. Applicable internationally.