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<div class=Section1>
<p class=MsoNormal><font size=2 color=green face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:green'>Way I look at it is…. what kind of
world do we want to live in? ….relying on high tech mechanical
ventilation such that we have ACTIVE BUILDINGS AND PASSIVE PEOPLE …or can
we get up and open a window or door etc when it gets too stuffy….SO WE
CAN HAVE A PASSIVE HOUSE WITH ACTIVE PEOPLE….but then up until now I have
had the luxury of working in a far less of a colder environment that those of
you in Canada, UK etc. <o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=green face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:green'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=green face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:green'><o:p> </o:p></span></font></p>
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<p class=MsoAutoSig><font size=2 color=green face=Arial><span lang=EN-US
style='font-size:10.0pt;font-family:Arial;color:green'>cheers<o:p></o:p></span></font></p>
<p class=MsoAutoSig><font size=2 color=green face=Arial><span lang=EN-US
style='font-size:10.0pt;font-family:Arial;color:green'>Andy<o:p></o:p></span></font></p>
<p class=MsoAutoSig><font size=2 color=green face=Arial><span lang=EN-US
style='font-size:11.0pt;font-family:Arial;color:green'><o:p> </o:p></span></font></p>
<p class=MsoAutoSig><font size=2 color=green face=Arial><span lang=EN-US
style='font-size:11.0pt;font-family:Arial;color:green'><o:p> </o:p></span></font></p>
<p class=MsoAutoSig><font size=2 color=green face=Arial><span lang=EN-US
style='font-size:11.0pt;font-family:Arial;color:green'><img width=576
height=119 id="_x0000_i1026" src="cid:image001.gif@01CC9064.09383670"></span></font><font
color=green><span lang=EN-US style='color:green'><o:p></o:p></span></font></p>
</div>
<p class=MsoNormal><font size=2 color=green face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:green'><o:p> </o:p></span></font></p>
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<p class=MsoNormal><b><font size=2 face=Tahoma><span lang=EN-US
style='font-size:10.0pt;font-family:Tahoma;font-weight:bold'>From:</span></font></b><font
size=2 face=Tahoma><span lang=EN-US style='font-size:10.0pt;font-family:Tahoma'>
GSBN-bounces@sustainablesources.com [mailto:GSBN-bounces@sustainablesources.com]
<b><span style='font-weight:bold'>On Behalf Of </span></b>Derek Roff<br>
<b><span style='font-weight:bold'>Sent:</span></b> 20 October 2011 10:29 PM<br>
<b><span style='font-weight:bold'>To:</span></b> Global Straw Building Network<br>
<b><span style='font-weight:bold'>Subject:</span></b> Re: [GSBN]
Embodied/embedded energy figures</span></font><span lang=EN-US><o:p></o:p></span></p>
</div>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'>I think picketing Passiv Haus in <st1:City w:st="on"><st1:place w:st="on">Darmstadt</st1:place></st1:City>
is a great idea. Maybe we could link it to the Occupy [Strawbale] Wall
Street protests that are going on in the <st1:country-region w:st="on"><st1:place
w:st="on">US</st1:place></st1:country-region>. <o:p></o:p></span></font></p>
<div>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'><o:p> </o:p></span></font></p>
</div>
<div>
<blockquote style='margin-top:5.0pt;margin-bottom:5.0pt' type=cite><span
style='orphans: 2;text-align:-webkit-auto;widows: 2;-webkit-border-horizontal-spacing: 0px;
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<div>
<p class=MsoNormal><font size=4 face=Helvetica><span style='font-size:13.5pt;
font-family:Helvetica'>I think it is very hard to justify a dependence on
mechanical ventilation to get fresh air into buildings.<o:p></o:p></span></font></p>
</div>
</blockquote>
</span>
<div>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'><o:p> </o:p></span></font></p>
</div>
<div>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'>I'd like to suggest that it is very difficult to justify every system,
choice, and alternative for getting fresh air into buildings. Or, to put
it another way, proper ventilation is a critical issue in buildings, and there
are no easy answers. I'm not in love with mechanical ventilation systems,
but I also see a serious problems with most systems in most modern buildings of
every size and scale. Tight buildings usually have some level of problems
with indoor air quality, and frequently with moisture. Part of that comes
from materials choices, and a lot comes from ineffective ventilation.
Passive ventilation systems that effectively bring the needed amount of
fresh air to all the rooms in a house are challenging to design and implement.
Ignoring the seriousness and challenge of potential ventilation problems
usually causes serious problems to manifest in the house sooner <i><span
style='font-style:italic'>and</span></i> later. Creating a ventilation
system that supports indoor air quality, conserves energy, and prevents
moisture problems in the walls is a critical part of design and construction,
and one that is seldom successfully met in either conventional construction or
natural building. <o:p></o:p></span></font></p>
</div>
<div>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'><o:p> </o:p></span></font></p>
</div>
<div>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'>Derelict<o:p></o:p></span></font></p>
</div>
<div>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'><o:p> </o:p></span></font></p>
<div>
<div>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'>On Oct 18, 2011, at 11:58 PM, Tom Woolley wrote:<o:p></o:p></span></font></p>
</div>
<p class=MsoNormal style='margin-bottom:12.0pt'><font size=3
face="Times New Roman"><span style='font-size:12.0pt'><o:p> </o:p></span></font></p>
<p class=MsoNormal><span class=apple-style-span><span style='orphans: 2;
text-align:-webkit-auto;widows: 2;-webkit-border-horizontal-spacing: 0px;
-webkit-border-vertical-spacing: 0px;-webkit-text-decorations-in-effect: none;
-webkit-text-size-adjust: auto;-webkit-text-stroke-width: 0px;word-spacing:
0px'><font size=4 face=Helvetica><span style='font-size:13.5pt;font-family:
Helvetica'>Dear Derek and everyone<o:p></o:p></span></font></span></p>
</span>
<div>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'><o:p> </o:p></span></font></p>
</div>
<div>
<p class=MsoNormal><font size=4 face=Helvetica><span style='font-size:13.5pt;
font-family:Helvetica'>As I see it Passiv Haus presents one of the biggest
challenges to the <st1:place w:st="on"><st1:PlaceName w:st="on">Natural</st1:PlaceName>
<st1:PlaceType w:st="on">Building</st1:PlaceType></st1:place> movement for
many years <o:p></o:p></span></font></p>
</div>
<div>
<p class=MsoNormal><font size=4 face=Helvetica><span style='font-size:13.5pt;
font-family:Helvetica'>In the <st1:country-region w:st="on"><st1:place w:st="on">Uk</st1:place></st1:country-region>
, the AECB (<a href="http://www.aecb.net/">http://www.aecb.net</a>) used
to be a good advocate for low impact building but now it has sold its soul to
Passiv Haus and seems to have reverted to the "Only energy in use argument"<o:p></o:p></span></font></p>
</div>
<div>
<p class=MsoNormal><font size=4 face=Helvetica><span style='font-size:13.5pt;
font-family:Helvetica'>There are of course a number of passiv haus projects
that have used low embodied energy materials ( particularly in <st1:country-region
w:st="on"><st1:place w:st="on">Austria</st1:place></st1:country-region>) but
most do not <o:p></o:p></span></font></p>
</div>
<div>
<p class=MsoNormal><font size=4 face=Helvetica><span style='font-size:13.5pt;
font-family:Helvetica'>I have challenged the leading figures of the Passiv Haus
movement face to face to justify why they exclude considerations of embodied
energy but their answer is to say that you can meet their standards with
natural materials. So why not advocate the use of natural materials then?<o:p></o:p></span></font></p>
</div>
<div>
<p class=MsoNormal><font size=4 face=Helvetica><span style='font-size:13.5pt;
font-family:Helvetica'>Many of the Passiv haus approved windows are made from
uPVC<o:p></o:p></span></font></p>
</div>
<div>
<p class=MsoNormal><font size=4 face=Helvetica><span style='font-size:13.5pt;
font-family:Helvetica'><o:p> </o:p></span></font></p>
</div>
<div>
<p class=MsoNormal><font size=4 face=Helvetica><span style='font-size:13.5pt;
font-family:Helvetica'>I think it is very hard to justify a dependence on
mechanical ventilation to get fresh air into buildings.<o:p></o:p></span></font></p>
</div>
<div>
<p class=MsoNormal><font size=4 face=Helvetica><span style='font-size:13.5pt;
font-family:Helvetica'>The achilles heel of MVHR systems is changing the
filters<o:p></o:p></span></font></p>
</div>
<div>
<p class=MsoNormal><font size=4 face=Helvetica><span style='font-size:13.5pt;
font-family:Helvetica'><o:p> </o:p></span></font></p>
</div>
<div>
<p class=MsoNormal><font size=4 face=Helvetica><span style='font-size:13.5pt;
font-family:Helvetica'>Fundamentally passiv haus presents a philosophy that
buildings can only be low energy if they use expensive high tech equipment<o:p></o:p></span></font></p>
</div>
<div>
<p class=MsoNormal><font size=4 face=Helvetica><span style='font-size:13.5pt;
font-family:Helvetica'>In the <st1:country-region w:st="on">UK</st1:country-region>
and <st1:country-region w:st="on"><st1:place w:st="on">Ireland</st1:place></st1:country-region>
a passiv haus costs between 50 and 100% more than a conventional low energy
house<o:p></o:p></span></font></p>
</div>
<div>
<p class=MsoNormal><font size=4 face=Helvetica><span style='font-size:13.5pt;
font-family:Helvetica'><o:p> </o:p></span></font></p>
</div>
<div>
<p class=MsoNormal><font size=4 face=Helvetica><span style='font-size:13.5pt;
font-family:Helvetica'>Personally I prefer the Walter Segal philosophy of
putting on another jumper rather than sealing myself up with a lot of plastic
and toxic materials.<o:p></o:p></span></font></p>
</div>
<div>
<p class=MsoNormal><font size=4 face=Helvetica><span style='font-size:13.5pt;
font-family:Helvetica'><o:p> </o:p></span></font></p>
</div>
<div>
<p class=MsoNormal><font size=4 face=Helvetica><span style='font-size:13.5pt;
font-family:Helvetica'>I will be in <st1:City w:st="on"><st1:place w:st="on">Darmstadt</st1:place></st1:City>
in November and am considering mounting a picket of the Passiv Haus HQ
for an hour or two<o:p></o:p></span></font></p>
</div>
<div>
<p class=MsoNormal><font size=4 face=Helvetica><span style='font-size:13.5pt;
font-family:Helvetica'>Anyone want to join me??<o:p></o:p></span></font></p>
</div>
<div>
<p class=MsoNormal><font size=4 face=Helvetica><span style='font-size:13.5pt;
font-family:Helvetica'><o:p> </o:p></span></font></p>
</div>
<div>
<p class=MsoNormal><font size=4 face=Helvetica><span style='font-size:13.5pt;
font-family:Helvetica'>Tom<o:p></o:p></span></font></p>
</div>
</div>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'><o:p> </o:p></span></font></p>
<div><span style='orphans: 2;text-align:-webkit-auto;widows: 2;-webkit-border-horizontal-spacing: 0px;
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-webkit-text-size-adjust: auto;-webkit-text-stroke-width: 0px;word-spacing:
0px'><span style='orphans: 2;widows: 2;-webkit-border-horizontal-spacing: 0px;
-webkit-border-vertical-spacing: 0px;-webkit-text-decorations-in-effect: none;
-webkit-text-size-adjust: auto;-webkit-text-stroke-width: 0px;word-spacing:
0px'>
<div style='word-wrap: break-word;-webkit-nbsp-mode: space;-webkit-line-break: after-white-space'>
<div>
<p class=MsoNormal><font size=4 color=black face=Helvetica><span
style='font-size:13.5pt;font-family:Helvetica;color:black'><br>
Derek Roff<o:p></o:p></span></font></p>
</div>
<div>
<p class=MsoNormal><font size=4 color=black face=Helvetica><span
style='font-size:13.5pt;font-family:Helvetica;color:black'><a
href="mailto:derek@unm.edu">derek@unm.edu</a><o:p></o:p></span></font></p>
</div>
<div>
<p class=MsoNormal><font size=4 color=black face=Helvetica><span
style='font-size:13.5pt;font-family:Helvetica;color:black'><o:p> </o:p></span></font></p>
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face=Helvetica><span style='font-size:13.5pt;font-family:Helvetica;color:black'><br>
<br>
</span></font><o:p></o:p></p>
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<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'></span><o:p> </o:p></span></font></p>
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