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kbenne / cbecc

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Spandrel #804

Closed GoogleCodeExporter closed 9 years ago

GoogleCodeExporter commented 9 years ago 
We have a question regarding curtain wall interpretations for the 2008 standard.

We have a high rise building in san Francisco that has approx. 40% WWR and the 
rest is a spandrel system.

Our façade consultant has highlighted excerpts from 2008 standard and based on 
those excerpts has an opinion that the curtain wall baseline system should be a 
curtain wall, not an opaque wall.

I’ve attached a few images from the 2008 std with façade consultants 
interpretations. The fourth image below is from the 2013 standard where the 
curtain wall/storefront performance requirements are indicated separately from 
an opaque wall system.

What baseline system does CBECC use for a spandrel curtain wall system in the 
design?

Original issue reported on code.google.com by f.le...@gmail.com on 7 Oct 2014 at 10:51

GoogleCodeExporter commented 9 years ago 
CBECC-Com, which supports compliance using the performance approach for the 
2013 standards, uses a steel-framed wall baseline for all opaque walls.  This 
applies to spandrel wall sections as well.  I can’t speak to how this was 
handled in the 2008 code.

Original comment by rhedr...@archenergy.com on 7 Oct 2014 at 11:13