St. Bartholomew School Activities Center
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2015 AJS Consulting Engineers, P.C.

St. Bartholomew School Activities Center - Bethesda, MD

Project was an addition of a new Multi-Purpose room to serve as a gymnasium and theater.


Mechanical system consisting of a large self contained premium quality rooftop unit with heat recovery wheels, demand control ventilation, gas heat, integrated cooling with hot gas reheat. The delivered unit was constructed by Aaon.


New system addresses wide variation in load for the number of occupants, the activity level of the occupants and the variability of the outside air requirements. The rooftop configuration was chosen to save the cost of constructing a large mechanical room.


The lighting system uses high efficiency T-5 Fluorescent lighting in a high bay fixture. Some lamps are on dimmer ballasts allowing one high efficiency lighting system to provide the intensity required for basketball and can be dimmed to the lower lighting levels appropriate for the seating area of a theater. The theater level lighting is also dimmable to allowing the lighting system to operate similar to the house lights of a theater.