Papio Bldg Dept
Platinum Member
this is how I see it...just because it is an open parking garage, does not mean you dismiss Chapter 12 carte blanche. The IECC does not trump the IBC in my opinion.Dr. J said:Now that we got iodinej's question out of the way, I hope you really are not requiring parking garage lighting levels 10 times higher than the IESNA levels. IBC 1205 requires 10 fc, whereas IESNA is 1 fc. IECC, which is based on IESNA lighting values, has a LPD of 0.3 w/sf for parking garage lighting. How do you meet that with lighting levels 10 times as high as the energy code is expecting?
2009 IECC Intent. This code is not intended to abridge safety, health or environmental requirements contained in other applicable codes or ordinances.
2006 IBC, Section 1205 is typically only applicable for 1205.4 & 1205.5 (which references 1006.1). I do not require the 10 f/c as noted in 1205.3 for open parking garage areas. I do, however, see it as a building, but as mtlogcabin stated, by definition, the open areas, are not a room, and thereby those areas of the building are not an occupiable space (albeit occupied by cars ) or interior environment. As a building, it has an occupant load (which is part of the gray area i guess), and it shall meet the requirements for means of egress as established in Chapter 10, as well as Chapter 12 for any interior areas environments, rooms or occupiable spaces (i.e., ticket booths, enclosed stairwells, toilet rooms (per Table 2902.1), etc.).