[Equest-users] Glass library error - Glass Type 2662

[Alex Krickx]

Hi Nicolas,

That is a really strange result. I checked glass code 2662 and if you look
at the LV-H report in the .sim file, it looks like the COG U-value is 0.233
Btu/(h-ft²-°F). That matches a similar glass I created in Window6,
(dual-pane argon filled w/ surface 2 e~0.04). So while the input value
looks wrong, what's being simulated and reported in your .sim file look
right.

As a comparison - a dual pane w/ argon and no Low-E in Window6 has U-value
around 0.45 Btu/(h-ft²-°F).

Hope that helps.

Cheers,
Alex

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*Alex Krickx, LEED AP*
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On Wed, Oct 17, 2012 at 8:43 AM, Lavalliere, Nicolas <
Nicolas.Lavalliere at bpr.ca> wrote:

>  Is anybody can confirm me that there’s is error in the Equest Library
> concerning the glass corresponding to the “Glass type code 2662”  and the
> entry name “Double Low-E (e2=.04) Clear”. ****
>
> ** **
>
> Once I load the item as a glass type and i check the value of emissivity
> (Glass Type Properties window / Component Details tab), i should find a
> Back Emis. of 0.04 for the first layer, am i right? But the problem is that
> the Back Emis of the first layer still at 0.84.****
>
> ** **
>
> Do you know how can i change it? I try to set a User Default value without
> succes...****
>
> ** **
>
> Thanks ,****
>
>  ****
>
> *Nicolas Lavalliere, B. Ing.*
> Efficacité énergétique
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> BPR
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> Téléc. 450 687-3755
> Nicolas.Lavalliere at bpr.ca <%0d%0aNicolas.Lavalliere at bpr.ca%0d%0a>
> www.bpr.ca <http://www.bpr.ca/index.php?lang=fr>
>
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