In my models (both proposed models and baseline models) the surfaces of the zones are from the inside edge of the external walls to the center of the internal partitions. Therefore the internal partitions are part of the building surface area. Is it correct? Shall I do some pre-processing in excel to calculate the surface for the lighting power of the baseline model or for the ventilation rates of the baseline model or for something else (actually now I have little time to change the geometry of the model...)? I use the Space-by-Space method and section 9.6.1 states: "b. For each space enclosed by partitions 80% greater than ceiling height, determine the gross interior floor area by measuring to the center of the partition wall." The partitions of my model are all from the floor to the ceiling.
Moreover section 9.6.1 states: "Include the floor are of balconies or other projections." Does it mean that if a hotel room is provided with a balcony I can assign a lighting power density equal to 12 W/m^2 also for the balcony?
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Marcus Sheffer
LEED Fellow7group / Energy Opportunities
LEEDuser Expert
5909 thumbs up
October 24, 2013 - 10:04 am
Yes the partition walls are part of the gross interior floor area. Doesn't make a bunch of sense to me but that is what it says. So using the center line of the interior partition is the correct way to do the models.
You would only include the balconies or other projections if they are enclosed, interior spaces. Otherwise they are exterior spaces.