A company is developing a new 71,000 square foot, one-story commercial/industrial facility. The company has established policies prohibiting smoking inside all of their facilities. For this particular project, they have designed a covered outdoor break area to be located within a long shallow alcove on the south face of the building to provide employees with a comfortable outdoor space where they can eat their lunches or convene during their scheduled breaks. The design team recognized the likelihood the space would also be used by smokers. To control the potential of tobacco smoke from disturbing non-smokers while in this area and to eliminate the possibility of tobacco smoke from entering the building, an outdoor smoke enclosure was designed. The break area alcove is enclosed on three sides by exterior building walls that extend up to the roof deck. The fourth side is open to the outdoors and a twelve-foot high soffit and the building roof above cover the alcove. The proposed smoking enclosure will be located at one end of the alcove with the exterior building walls enclosing two sides and the remaining two sides formed by an \'L-shape\' glass partition sealed to the slab, the underside of the soffit and to the building walls. This enclosure will be the only area adjacent to the building where smoking is permitted. The enclosure is accessed through a seven-foot high open doorway on the south face of the glass partition. An exhaust fan designed to remove smoke from the enclosure will be installed in the soffit and ducted to the roof more than 80 feet from the closest outside air intake. The doorway to the enclosure is located ~50 feet from closest operable window, ~33 feet from the doors through which employees will access the break area and ~23 feet from an access door to the building\'s electrical room (not a building entry). The smoking enclosure is not located near an area of high pedestrian traffic and the doorway is ~20 feet from the seating in the non-smoking break area. As noted above, the smoking enclosure is more than 25 feet from building entries, operable windows and air intakes. We have found no specific requirements for separation of outdoor smoking and non-smoking areas in the LEED Reference Guide and CIRs. The glass enclosure and exhaust fan are designed to prevent EST exposure of employees in the non-smoking break area. We feel that the proposed design meets the specific requirements and intent of the prerequisite. Do you agree?
The above design seems to be a reasonable approach to protecting non-smokers from second hand smoke, and therefore meets the intent of the prerequisite. Be sure to include supporting documentation including drawings to demonstrate the distance between the smoking area and operable windows, doors and air uptakes in the building. Applicable Internationally.