Rating System

LEED BD+C: New Construction

Rating System Version

v2 - LEED 2.0

Inquiry

We believe that following portion of the proposed LEED 2.1 revision from the IEQ TAG is applicable to multi-family residential and should be used for projects seeking certification under LEED 2.0: . . provide operable windows within 20 feet and effective air distribution [this needs to be defined by the IEQ TAG] for 90% of all occupied spaces . . . OR We propose that effective ventilation can be induced by a timed cycle, low sone, ducted, ventilation fan in the bathroom and/or kitchen, or the furthest room from the perimeter of the building where the windows are located. Window crackage and/or slot ventilation openings in the window frames or wall can be used as the fresh air source with an acknowledgment in the design of how the moisture issues from differential pressurization will be addressed. OR Provide fan assisted ventilation in conjunction with operable window area exceeding 5% of the floor area. [BOCA requires the following: 1208.2 Ventilation area required: The minimum openable area to the outdoors shall be 4 percent of the floor area being ventilated]. OR Provide ducted, filtered, outside, ventilated air for all dwelling units.