Clerestory to bring natural light into subterranean space: exceptional IEQ Our project is a 250,000SF subterranean sports facility. Due to the site and security constraints, we are unable to incorporate windows in the space. However, the design team feels strongly about the importance of natural light, especially in a sports facility, where users are exercising and relaxing. Therefore, in the design, we introduce 4 clerestories, designed with internal reflectors, along the sports facility to bring in natural light. As a result, the daylight factors of the major interior spaces are as follows: Natatorium: 7% Indoor track: 29% Indoor basketball court: 14% This is remarkable results for an underground facility. the clerestories also serves as fresh air intakes for the mechanical systems, therefore reducing the need of constructing a separate aerial way. We strongly believe that this will be qualified for an Innovation and Design Credit.
The incorporation of daylight is a strategy which is addressed in EQc8 and is a design option in most building types, including underground facilities. It appears that the design strategy outlined will meet the criteria for EQc8.1 for natural light in 75% of regularly occupied spaces and does not warrant a separate credit for innovation. Applicable Internationally.