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Baseline Shading System

asked 2017-07-31 07:30:30 -0500

manfred's avatar

updated 2017-08-01 03:39:24 -0500

I'm modeling a Leed Baseline model.

The original building has a wide unconditioned roof. Should I consider it as a shading surface? Should I delete the unconditioned roof in the baseline model?

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answered 2017-08-01 03:42:53 -0500

updated 2017-08-01 03:43:50 -0500

Get a copy of the ASHRAE 90.1 vintage you are using in your LEED certification. Consider also getting the User's Manual that goes in pair with it.

ASHRAE 90.1-2010 (but same in 2007 and 2013 as far as I remember), Table G3.1, Section 5. Building Envelope, Baseline Building column:

f. Existing Buildings.

For existing building envelopes, the baseline building design shall reflect existing conditions prior to any revisions that are part of the scope of work being evaluated.

I would model it as per the baseline building, so included an unconditioned zone that will serve as your roof cavity, or whatever is actually the case.

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I was looking for an explanation of this "existing conditions prior to any revisions that are part of the scope of work being evaluated.".

It's very clear, thank you very much.

manfred's avatar manfred  ( 2017-08-01 04:17:15 -0500 )edit

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Asked: 2017-07-31 07:30:30 -0500

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Last updated: Aug 01 '17