[Bldg-sim] U-Value Software

[B. Fountain]

The assembly construction editor is one of the best pieces of the EE4
software which is available free from Natural Resources Canada at...

http://canmetenergy-canmetenergie.nrcan-rncan.gc.ca/eng/software_tools/ee4.html

It is very similar to Energy10 in format and allows dynamic switching
between SI & IP units.  There is a selection of common building materials
and the construction editor calculates equivalent 1-D heat transfer
U-value for 1 layer of framing elements.

Good luck.

> Robby
>
> Here are a few options that you could use:
>
> A simple excel sheet (offered as web form)
> http://vesma.com/tutorial/uvalue01/uvalue01.htm
>
>
>
> If you don't mind SI units, there are some more advanced versions with
> good graphics
>
> from the UK http://www.builddeskonline.com/
>
> or also a nice Austrian tool by ArchiPhysik
> http://www.archiphysik.at/webphysik/index.php that gives you also a
> hygrothermal performance graph, which is required in some European codes
> for hygrothermal performance.
>
> Both are free for simplified online usage. If you are looking for a
> conversion tool for these SI units go to: http://www.unitconversion.org/
> or in your case to
> http://www.unitconversion.org/unit_converter/thermal-conductivity.html
> or directly use the conversion factor: 1 BTU/h.sf.F equals 5.68 W/m2.K
> or the other way round 1 W/m2.K equals 0.176 BTU/h.sf.F
>
>
>
> Hope that helps,
>
> Georg
>
>
>
>
>
> Myers-Lawson School
> of Construction
> Department of Building Construction
> Virginia Polytechnic Institute
> and State University
> 430B Bishop-Favrao Hall (0156)
> Blacksburg, VA 24061
>
>
>   Dr. Georg Reichard
>   Assistant Professor
>   (540) 818-4603
>   e-mail: reichard at vt.edu
>   www.mlsoc.vt.edu
>
>
>
>
>
>
>
>
>
> From: bldg-sim-bounces at lists.onebuilding.org
> [mailto:bldg-sim-bounces at lists.onebuilding.org] On Behalf Of Robby
> Oylear
> Sent: Wednesday, May 27, 2009 6:21 PM
> To: bldg-sim at lists.onebuilding.org
> Subject: [Bldg-sim] U-Value Software
>
>
>
> Is anyone aware of a software that calculates U-values of typical
> construction assemblies?  I'm not looking for something as complicated
> as THERM, but more along the lines of a program with a database of
> common materials and typical framing factors that will allow me to
> calculate U-values quickly without thumbing through my ASHRAE
> fundamentals handbook or my local energy code.
>
>
>
> Also, the units would need to be in IP.
>
>
>
> Thanks for your help,
>
>
>
> Robby Oylear, LEED(r) AP
>
> Mechanical Engineer
>
> direct: 206.788.4571
>
> cell: 206.354.2721
>
> www.rushingco.com <http://www.rushingco.com>
>
>
>
>
>
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