Rating System

LEED BD+C: New Construction

Rating System Version

v2 - LEED 2.1

Inquiry

Our project involves the renovation of 5 existing historic, residence halls. We were somewhat surprised to find out that student rooms with large existing windows (4\'x6\')with 8\'6" head height, were coming up short of the 2% daylight level using the LEED calculator. So, we composed a daylighting computer model to study the rooms. In the model, there are small areas of each room that do not meet the 2% requirement. In most cases, this area is the doorway entry area adjacent to a closet. Our question is: In modeling this, does 100% of each student room need to meet the 2% factor? (Realizing that the doorway will not be used for critical tasks such as reading or studying.) In other words, can a small percentage of each room fall below the 2% factor as long as the total 2% daylight area totals more than 75% of the total occupied spaces?