[Bldg-sim] Design Builder : Low E coated surface

Chris Yates chris at zed-uk.com
Fri Aug 28 02:17:53 PDT 2009


Nick's right. I didn't have the software in front of me at the time.  
Window 5 uses the international glazing database that I talked about.  
DB uses the same data. It is easier to review it in Window. I don't  
think Window has a flip feature - is that right Nick?
Cheers
Chris

Sent from my iPhone

On 28 Aug 2009, at 06:48, "Nick Kovess"  
<Nick.Kovess at meinhardtgroup.com> wrote:

> Hi Deepa,
>
> I believe 'flip' means to switch which 'surface' on the individual  
> pane the low-E coating is applied to. The order of the panes in the  
> glazing setup will not change if you tick the flip box. When you are  
> building up a glazing system, design builder clearly shows  
> 'outermost pane' and 'innermost pane', these do not change if you  
> check the flip box.
>
> Basically I believe it is the opposite to what Chris just said.
>
> In terms of finding out on which surface the coating originally is,  
> and thus where it will move to if 'flipped', I have found using the  
> software Window5 easiest for this. In Window5, find the same pane  
> you wish to use in DesignBuilder and when you look at the glazing  
> set up you can see a dashed line which indicates the location of the  
> coating.
>
> Hope that helps
>
>
>
> Nick Kovess
> Engineer | Building Science Group
>
> Meinhardt
> Level 12
> 501 Swanston Street
> Melbourne VIC 3000
> Phone: +61 (0) 3 8676 1200
> Direct:  +61 (0) 3 8676 1366
> Mobile: 0413 586 936
> Fax:     +61 (0) 3 8676 1201
> E-mail: nick.kovess at meinhardtgroup.com
> http://www.meinhardtgroup.com
>
>
>>>> Chris Yates <chris at zed-uk.com> 28/08/2009 3:14 pm >>>
> Hi Deepa
> I think flip means swap the place of inside and outside pane - not
> flipping the individual panes so that the coating moves to the
> opposite surface.
> DB uses the International Glazing Database which you can download from
> lbnl. It's easy to use so worth downloading a copy. Unforunately you
> can't transfer the results to DB at present.
>
> Chris
>
> Sent from my iPhone
>
> On 28 Aug 2009, at 04:38, deepa chandrashekaran <creations.deepa at googlemail.com
>> wrote:
>
>> Jeff,
>>
>> Thank you for responding. I agree that it depends on the climate.
>>
>> Design Builder has the option called 'flip' while making the double
>> pane assembly. Hence I was not clear as to which surface is the
>> coating on and what does flip actually mean?
>>
>>
>> Deepa
>>
>>
>> On Thu, Aug 27, 2009 at 8:26 PM, Jeff Haberl <jhaberl at tamu.edu>  
>> wrote:
>> The "surface" depends on the climate.
>>
>> Cooling dominated climates benefit from the low-E on the inside
>> surface of the outside pane.
>>
>> Heating dominated climates benefit from the low-E on the outside
>> surface of the inside pane.
>>
>> Such characteristics are normally defined by the applicable codes
>> for a given location.
>>
>> Jeff
>> BB 8=! 8=) :=) 8=) ;=) 8=) 8=( 8=) :=') 8=) 8=) 8=? BB
>>
>> Jeff S. Haberl, Ph.D., P.E., FASHRAE...................jhaberl at esl.tamu.edu
>>
>> Professor.
>> .....................................................Office Ph: 979-845-6507
>>
>> Department of Architecture.......................Lab Ph: 979-845-6065
>>
>> Energy Systems Laboratory.......................FAX: 979-862-2457
>>
>> Texas A&M University..............................77843-3581
>>
>> College Station, Texas, USA.......................URL: www-
>> esl.tamu.edu
>>
>> BB 8=/ 8=) :=) 8=) ;=) 8=) 8=() 8=) 8=?  8=) 8=) 8= BB
>>
>> From: bldg-sim-bounces at lists.onebuilding.org <bldg-sim-bounces at lists.onebuilding.org
>>>
>> To: Bldg-Sim <bldg-sim at lists.onebuilding.org>
>> Sent: Thu Aug 27 21:58:12 2009
>> Subject: [Bldg-sim] Design Builder : Low E coated surface
>> Hello all,
>>
>> I am trying to model several types of Low E glazing in Design
>> Builder to understand the effect on the peak heating and cooling  
>> load.
>>
>> While choosing different glazing, I could not understand which
>> surface of the glazing has the Low E coating.
>>
>> I would appreciate any inputs about this aspect.
>>
>>
>> Thanks,
>> Deepa Chandrashekaran, LEED AP
>> Master of Building Science 2010
>> University of Southern California
>>
>>
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