[Equest-users] R value Calculators

[Peter Hillermann]

I agree with Pasha. That's the way I do it. I have also attached the eQuest
materials library which is a big help. It is the values eQuest sets up in
the wizards. Remember you can always call your architect, they should know
weighted wall R-values. If not then I worry a little because that means they
are constructing a wall that does not meet the engineers need when you tell
them they need a R-19 wall, for example. When our engineer tells us this is
the minimum wall R value per energy code we research walls that we need to
construct.

 

IE:- We use a metal panel with rigid insulation that has an R value of 27.
On the manufacturers site it has their testing for their specific product.
You should consult with an architect because sometimes a wall has specific
characteristics that cannot be altered due to design.

Thanks,

 

PETER HILLERMANN

 

peterh at westallarchitects.com

 

westall

architects

3404 pierce drive

chamblee, georgia 30341

 

o 770.458.4113

f  770.458.5352

c 678.898.2936

 

westallarchitects.com

e-signatureUSGBC-Logo

 

 

 

From: equest-users-bounces at lists.onebuilding.org
[mailto:equest-users-bounces at lists.onebuilding.org] On Behalf Of Pasha
Korber-Gonzalez
Sent: Wednesday, July 28, 2010 11:23 AM
To: Charles Welch
Cc: equest-users at lists.onebuilding.org
Subject: Re: [Equest-users] R value Calculators

 

I do it by hand, the good ole way.   I also "test" my calcs based on
building up the construction by layers in the eQuest wizard to see what it
is spitting out from thier calculator.   For my experiences my calcs and
eQuest calcs have always "lined up" with each other.   No better way to do
it than the old way...& my favorite mechanical pencil & TI-81 of course! 

 

pkg

On Tue, Jul 27, 2010 at 11:11 PM, Charles Welch <cdwinaz at cox.net> wrote:

Whate are you all using to calculate R Values these days?

Any good calculators out there?

 

 


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