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NC-2009 IEQc8.1:Daylight and Views—Daylight

equipment

if we have manufacturing equipment on the floor and all area is daylit through skylights, providing even lighting level across the space do we need to exclude sq. footage of equipment from complied area? Thank you

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Profile picture for user treed74
TODD REED
Energy Program Specialist
PA DMVA
LEEDuser Expert
626 thumbs up

Mon, 09/30/2013 - 19:23

If you have large pieces of permanently mounted equipment, you may exclude the area it occupies from the total regularly occupied space. However, you must include it in your calculations. So if using simulation, it must be included in the simulation model in some form. This would also be true with the views credit, these pieces of equipment basically are large partitions and need to be included in your sight line drawings.

Mon, 09/30/2013 - 19:54

Exactly how large? If they are large enough that people can work inside of them, or that people lean over them, or that people need to look at them to work, then I would say include them. If they obstruct space from being occupied and there is no need to look at them (monitor gauges or meters, for example), then I think it would be fair to exclude them.

Mon, 09/30/2013 - 21:57

It is manufacturing equipment that 3-8’ high with people working on this equipment all day. the whole area under skylight (diffuse) with even lighting level of 45-50fc across entire space (with manufacturing equipment included in calculation model) If we include the area that covered with equipment to qualified area it will increase our qualified % for 8.1 credit. In some way it similar to office equipment such as desks, partitions, standard file cabinets, etc. but may be slightly larger in scale. I’m really appreciate your advise. Thank you
Profile picture for user eddy.santosa
Eddy Santosa
Director of Sustainability
DBR Engineering Consultants
LEEDuser Basic Member
244 thumbs up

Wed, 11/13/2013 - 21:07

I believe you need to include if the workers work on the horizontal surface of the equipment (3'-8"). You can also use 3'-8" grid high.

Wed, 02/19/2014 - 16:18

I have another question for the same project..Part of the same building is active warehouse with large storage racks going from floor to ceiling. Racks take about 50% of floor space. We have skylights in between the racks providing required lighting levels. In simulation model whether we include or exclude sq. footage of racks, we have required % to meet LEED requirements. The other energy models (credits) do not exclude sq. footage of racks from total sq. footage of regularly occupied spaces which kind of predefines the total regularly occupied area for daylight credit to follow. Will it be correct to include racks area in total calculated area, or these areas need to be excluded? And what would be the best way to handle the situation when we need to exclude the racks? Appreciate your advice.. Thanks
Profile picture for user Marais.Jean
Jean Marais
b.i.g. Bechtold DesignBuilder Expert
LEEDuser Basic Member
581 thumbs up

Wed, 02/19/2014 - 16:56

One of the things reviewers are sticky about is consistancy across credits. This is a picky point for the energy simulations which are modelled in thermal blocks and the regularly occupied space has more to do with when an assigned lighting power density will switch on or off for that block and other such simulation stuff. This means that "regularly occupied space" for the EAp2 credit is bound to deviate. It does not set the president for the LEED submission as a whole! Quite the contrary in fact. Sometimes, you need to do some extra explaining unfortunately. Personally, I (and not only I) think that the regularly occupied space part of the online forms for EAp2 can be scrapped without effecting anything.
Profile picture for user eddy.santosa
Eddy Santosa
Director of Sustainability
DBR Engineering Consultants
LEEDuser Basic Member
244 thumbs up

Wed, 02/19/2014 - 19:21

In my opinion, If the racks have no solid door, you should add them. If there are solid doors, you can exclude them. If you want to exclude, you need to provide a separate narrative.

Wed, 02/19/2014 - 20:30

thank you all!

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