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<DIV dir=ltr align=left><FONT color=#0000ff size=2 face=Arial><SPAN
class=515483117-16042012>Mr. Abrams,</SPAN></FONT></DIV>
<DIV dir=ltr align=left><FONT color=#0000ff size=2 face=Arial><SPAN
class=515483117-16042012></SPAN></FONT> </DIV>
<DIV dir=ltr align=left><FONT color=#0000ff size=2 face=Arial><SPAN
class=515483117-16042012>Mr. Straube is correct in the percent of difference
between U and R values in the US vs.. EU.</SPAN></FONT></DIV>
<DIV dir=ltr align=left><FONT color=#0000ff size=2 face=Arial><SPAN
class=515483117-16042012>But as I see it these differences are
based upon climate and energy conditions that are different in EU than
in the US and therefore promote the different data and
are only minimal in range.</SPAN></FONT></DIV>
<DIV dir=ltr align=left><FONT color=#0000ff size=2 face=Arial><SPAN
class=515483117-16042012>The main issue is that the glazing products are built
different with different tolerances and configurations. i.e..e. thermal break
distance, glazing thickness, thick of metal and type of coatings coating,
etc.</SPAN></FONT></DIV>
<DIV dir=ltr align=left><FONT color=#0000ff size=2 face=Arial><SPAN
class=515483117-16042012>The amount of wood used to enclose the glazing in
the EU is often less than what is used in this
country. </SPAN></FONT></DIV>
<DIV dir=ltr align=left><FONT color=#0000ff size=2 face=Arial><SPAN
class=515483117-16042012>This affects overall size of
windows.</SPAN></FONT></DIV>
<DIV dir=ltr align=left><FONT color=#0000ff size=2 face=Arial><SPAN
class=515483117-16042012>Getting the correct window size form the EU
window to fit a bedroom by code for example wood be very
costly.</SPAN></FONT></DIV>
<DIV dir=ltr align=left><FONT color=#0000ff size=2 face=Arial><SPAN
class=515483117-16042012>I could see 25% to 50% difference in cost to cover such
a condition. </SPAN></FONT></DIV>
<DIV dir=ltr align=left><FONT color=#0000ff size=2 face=Arial><SPAN
class=515483117-16042012></SPAN></FONT> </DIV>
<DIV dir=ltr align=left><FONT color=#0000ff size=2 face=Arial><SPAN
class=515483117-16042012>Mr. Straube contention is also correct that
approvals by agencies with performance and
quality oversight of imported materials would have a
considerable impact on their availability and pricing
also. </SPAN></FONT></DIV>
<DIV dir=ltr align=left><FONT color=#0000ff size=2 face=Arial><SPAN
class=515483117-16042012></SPAN></FONT><FONT color=#0000ff size=2
face=Arial><SPAN class=515483117-16042012> </SPAN></FONT></DIV>
<DIV align=left><FONT face=Arial><FONT size=2><SPAN
class=515483117-16042012>Cheers</SPAN>,</FONT></FONT></DIV>
<DIV align=left><FONT size=2 face=Arial>Doug Lamb</FONT></DIV>
<DIV align=left><FONT size=2 face=Arial><A
href="mailto:douglaslamb@columbus.rr.com">douglaslamb@columbus.rr.com</A></FONT></DIV>
<DIV align=left><FONT size=2 face=Arial></FONT> </DIV>
<DIV> </DIV><BR>
<DIV dir=ltr lang=en-us class=OutlookMessageHeader align=left>
<HR tabIndex=-1>
<FONT size=2 face=Tahoma><B>From:</B>
greenbuilding-bounces@lists.bioenergylists.org
[mailto:greenbuilding-bounces@lists.bioenergylists.org] <B>On Behalf Of
</B>Douglas E Lamb<BR><B>Sent:</B> Monday, April 16, 2012 1:28 PM<BR><B>To:</B>
'Green Building'<BR><B>Subject:</B> Re: [Greenbuilding] apples, oranges, and u
values<BR></FONT><BR></DIV>
<DIV></DIV>
<DIV dir=ltr align=left><SPAN class=265312515-16042012><FONT color=#0000ff
size=2 face=Arial>Mr. Abrams,</FONT></SPAN></DIV>
<DIV dir=ltr align=left><SPAN class=265312515-16042012><FONT color=#0000ff
size=2 face=Arial></FONT></SPAN> </DIV>
<DIV dir=ltr align=left><SPAN class=265312515-16042012><FONT color=#0000ff
size=2 face=Arial>We simply use different mathematics, and physics symbols to
represent the same thing. (metrics vs. imperial); yards vs. meters, inches vs.
millimeters, etc</FONT></SPAN></DIV>
<DIV dir=ltr align=left><SPAN class=265312515-16042012><FONT color=#0000ff
size=2 face=Arial>This is due to the difference in material thickness 25mm=
1in approx.</FONT></SPAN></DIV>
<DIV dir=ltr align=left><SPAN class=265312515-16042012><FONT color=#0000ff
size=2 face=Arial>Some Eu countries use Joules others use Kilocalories to
identify energy consumption BTU/hr or otherwise energy use in or out,
etc.</FONT></SPAN></DIV>
<DIV dir=ltr align=left><SPAN class=265312515-16042012><FONT color=#0000ff
size=2 face=Arial>Whether in the US or EU, though, R=R and
U=U.</FONT></SPAN></DIV>
<DIV dir=ltr align=left><SPAN class=265312515-16042012><FONT color=#0000ff
size=2 face=Arial>Some day we will get it correct and every one will be in the
same page.</FONT></SPAN></DIV>
<DIV dir=ltr align=left><SPAN class=265312515-16042012><FONT color=#0000ff
size=2 face=Arial>For now however, you can calculate heat loss and heat
gain per thickness of glazing and direction of glare based upon ASHREA
formulas regardless of where you are on the
planet.</FONT></SPAN></DIV>
<DIV dir=ltr align=left><SPAN class=265312515-16042012><FONT color=#0000ff
size=2 face=Arial>And I recommend if you own a Pilkington sun (angle
calculator) it would be helpful orienting solar glare direction that
best suites Low-E rating of the glazing for your particular region of
the country.</FONT> </SPAN></DIV>
<DIV> </DIV>
<DIV align=left><FONT face=Arial><FONT size=2><SPAN
class=265312515-16042012>Cheers</SPAN>,</FONT></FONT></DIV>
<DIV align=left><FONT size=2 face=Arial>Doug Lamb</FONT></DIV>
<DIV align=left><FONT size=2 face=Arial><A
href="mailto:douglaslamb@columbus.rr.com">douglaslamb@columbus.rr.com</A></FONT></DIV>
<DIV align=left><FONT size=2 face=Arial></FONT> </DIV>
<DIV> </DIV><BR>
<DIV dir=ltr lang=en-us class=OutlookMessageHeader align=left>
<HR tabIndex=-1>
<FONT size=2 face=Tahoma><B>From:</B>
greenbuilding-bounces@lists.bioenergylists.org
[mailto:greenbuilding-bounces@lists.bioenergylists.org] <B>On Behalf Of </B>Alan
Abrams<BR><B>Sent:</B> Monday, April 16, 2012 11:07 AM<BR><B>To:</B> Green
Building<BR><B>Cc:</B> Greenbuilding@bioenergylists.org<BR><B>Subject:</B> Re:
[Greenbuilding] apples, oranges, and u values<BR></FONT><BR></DIV>
<DIV></DIV>I appreciate all the perspectives, but the question remains, do the
Europeans measure window performance differently, U for U, or R for R, than we
do here in the colonies? (or are energy stimulated molecules less
excitable here in the new world, than they are, in say, Gay
Paree?)<BR><BR>-a<BR><BR clear=all><B style="COLOR: rgb(0,102,0)">Alan
Abrams</B><B style="COLOR: rgb(0,102,0)"><BR>Abrams Design Build LLC</B><BR
style="COLOR: rgb(0,102,0)"><I style="COLOR: rgb(0,102,0)">A sustainable
approach to beautiful space</I><BR style="COLOR: rgb(0,102,0)"><FONT
style="COLOR: rgb(0,102,0)" size=1><FONT size=+0><BR>6411 Orchard Avenue Suite
102<BR>Takoma Park, MD 20912<BR>office </FONT></FONT><FONT
style="COLOR: rgb(0,102,0)" size=1><FONT size=+0>301-270-NET- ZERO
(301-270-6380) <BR></FONT></FONT><FONT style="COLOR: rgb(0,102,0)"
size=1><FONT size=+0>fax </FONT></FONT><FONT
style="COLOR: rgb(0,102,0)" size=1><FONT
size=+0>301-270-1466 <BR></FONT></FONT><FONT
style="COLOR: rgb(0,102,0)" size=1><FONT size=+0>cell
</FONT></FONT><FONT style="COLOR: rgb(0,102,0)" size=1><FONT
size=+0>202-437-8583</FONT></FONT><FONT style="COLOR: rgb(0,102,0)" size=1><FONT
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href="mailto:alan@abramsdesignbuild.com"
target=_blank>alan@abramsdesignbuild.com</A><BR style="COLOR: rgb(51,51,255)"><A
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