[Equest-users] Spandrel Glass

John Aulbach jra_sac at yahoo.com
Wed Dec 5 18:26:07 PST 2018

 Just checked. Spandrel Glass is the next to last listed material in the materials Library. How to look up its properties are for you young pups. If it is a material, I believe it will have only opaque properties.Again, it is shown as 1/4", so add another layer with an airspace between and whatever insulation is behind it.
Vulcans never lie..
    On Wednesday, December 5, 2018, 4:38:51 PM GMT-8, Paul Diglio <paul.diglio at sbcglobal.net> wrote:  
I am not sure how to get to the spandrel glass selection.  I do not see it in the library.  If I try to make another exterior construction, I have the option for a metal curtainwall but I do not see spandrels.

Anyway, these spandrel panels are uncoated glass on the exterior, air gap, painted glass on the interior with 6" of foam insulation between inner layer of glass and conditioned space.
David, I don't quite understand what you are suggesting, but the exterior walls will have a different u-factor than the spandrel panels, which is why I had to draw them separately.  I inserted the vision panels of the curtainwall on the exterior walls and inserted the spandrels separate from the vision panels of the curtainwall.  I was hoping there was some way I could edit the input file to change the spandrel panels to a new construction so they wouldn't show up on the LV-D report as glass.

Thanks for the responses, Paul Diglio
87 Fairmont Avenue 
New Haven, CT 06513 

      From: John Aulbach <jra_sac at yahoo.com>
 To: "DEldridge at grummanbutkus.com" <DEldridge at grummanbutkus.com>; Paul Diglio <paul.diglio at sbcglobal.net>; "equest-users at onebuilding.org" <equest-users at onebuilding.org> 
 Sent: Wednesday, December 5, 2018 7:11 PM
 Subject: RE: [Equest-users] Spandrel Glass
Hi Dave
I am not in front of my eQuest computer. But I think the spandrel has the u value of glazing without a shading coefficient, so would it not then be opaque. Makes no sense to me for glazing to be in a wall parametric library. I also think it is 1/4 inch, so I would add another spandrel wall and board insulation behind it.
We need another Engineering Manual written !!

Sent from Yahoo Mail on Android 
  On Wed, Dec 5, 2018 at 3:59 PM, David Eldridge<DEldridge at grummanbutkus.com> wrote:   #yiv4026147165 -- filtered {font-family:Helvetica;panose-1:2 11 6 4 2 2 2 2 2 4;}#yiv4026147165 filtered {panose-1:2 4 5 3 5 4 6 3 2 4;}#yiv4026147165 filtered {font-family:Calibri;panose-1:2 15 5 2 2 2 4 3 2 4;}#yiv4026147165 filtered {font-family:Roboto;}#yiv4026147165 p.yiv4026147165MsoNormal, #yiv4026147165 li.yiv4026147165MsoNormal, #yiv4026147165  div.yiv4026147165MsoNormal {margin:0in;margin-bottom:.0001pt;font-size:12.0pt;font-family:New serif;}#yiv4026147165 a:link, #yiv4026147165 span.yiv4026147165MsoHyperlink {color:blue;text-decoration:underline;}#yiv4026147165 a:visited, #yiv4026147165 span.yiv4026147165MsoHyperlinkFollowed {color:purple;text-decoration:underline;}#yiv4026147165 span.yiv4026147165EmailStyle17 {font-family:sans-serif;color:#1F497D;}#yiv4026147165 .yiv4026147165MsoChpDefault {font-family:sans-serif;}#yiv4026147165 filtered {margin:1.0in 1.0in 1.0in 1.0in;}#yiv4026147165 div.yiv4026147165WordSection1 {}#yiv4026147165 Paul – to answer your question: painfully? It may not be that bad actually – what’s your base wall type? For a curtain wall that is half spandrel and half vision glass, make the exterior opaque surface equivalent to the spandrel sections as a defined opaque wall construction, and then add the vision glass to that – if you change the surface constructions in spreadsheet view it may not be that painful after all. The painful part will be deleting all of the current spandrel sections that are now defined as the base wall.    JRA – I’m not sure of the purpose of the spandrel glass type in the library, I don’t know if that window object model has the capability to perform as if it were an opaque surface although this spandrel glass definition may be available to be selected…I’m not sure it would be an accurate choice. I wonder if it is a research entry that isn’t meant for the modeling public. Anyone used it?    David       David S. Eldridge, Jr., P.E., LEED AP BD+C, BEMP, BEAP, HBDP Associate   Direct: (847) 316-9224 | Mobile: (773)490-5038   Grumman/Butkus Associates| 820 Davis Street, Suite 300 | Evanston, IL 60201 Energy Efficiency Consultants and Sustainable Design Engineers    grummanbutkus.com |Blog |Facebook |Twitter    From: Equest-users [mailto:equest-users-bounces at lists.onebuilding.org]On Behalf Of John Aulbach via Equest-users
Sent: Wednesday, December 05, 2018 5:39 PM
To: Paul Diglio <paul.diglio at sbcglobal.net>; Paul Diglio via Equest-users <equest-users at lists.onebuilding.org>; equest-users at onebuilding.org
Subject: Re: [Equest-users] Spandrel Glass    Paul,    As I recall there IS a wall component called spandex glass in the Library. See if that solves your need.    John Sent from Yahoo Mail on Android    
On Wed, Dec 5, 2018 at 3:33 PM, Paul Diglio via Equest-users <equest-users at lists.onebuilding.org> wrote: I have a building with a very large amount of spandrel glass panels, which I modeled as glass since this seemed to be the only way to insert the panels into the exterior walls.    I would somehow like to re-assign the spandrel panels as another exterior component so they will be counted as part of the exterior walls in the LV-D report instead of glass.    Any idea on how this can be done?    Thank you,   Paul Diglio
87 Fairmont Avenue 
New Haven, CT 06513 

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