[Equest-users] Thermal Mass Wall and R-Value

[Rob Hudson]

That is the answer i was expecting to here.  thanks for your input

On Thu, Apr 22, 2010 at 12:27 PM, Bruce Easterbrook <bruce5 at bellnet.ca>wrote:

>  That doesn't sound right.  Poured concrete has an R-value around
> 0.08/inch.  When "effective" is used commercially it normally is a hocus
> pocus addition for the mass effect but shouldn't be much more than 10%.
> eQuest would calculate it as a lag effect based on the mass, so a steady
> state value would be most appropriate.
> Bruce Easterbrook
>
>
> On 22/04/2010 10:38 AM, Rob Hudson wrote:
>
> When creating a model, i noticed that the R-value of the concrete i am
> using is the "effective" R-value, rated at 22.  Should i use this or should
> i ask the concrete manufacturer for a steady-state R-value which will be
> much more accurate based on the materials?
>
> --
> Rob Hudson
>
>
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-- 
Rob Hudson
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