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</o:shapelayout></xml><![endif]--></head><body lang=EN-AU link=blue vlink=purple><div class=WordSection1><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:black'>Are there any tests on the R-value of rendered strawbales?<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:black'>In my research (over 12 years as an architect of strawbale houses and other buildings) I’ve never been able to find a true tested value.<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:black'>Would appreciate any help here.<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:black'>Bohdan Dorniak<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:black'>AUSBALE<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:black'><o:p> </o:p></span></p><p class=MsoNormal><b><span lang=EN-US style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span></b><span lang=EN-US style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'> GSBN-bounces@sustainablesources.com [mailto:GSBN-bounces@sustainablesources.com] <b>On Behalf Of </b>Danny Buck<br><b>Sent:</b> Wednesday, 7 December 2011 8:24 AM<br><b>To:</b> Global Straw Building Network<br><b>Subject:</b> Re: [GSBN] Fwd: Decrement factor of SB walls<o:p></o:p></span></p><p class=MsoNormal><o:p> </o:p></p><div><div><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Verdana","sans-serif";color:black'>I side with Dereck in general and in particular on impact of the thermal characteristics with no exterior render. There is the potential for air infiltration through the joints between bales and accompanying convective currents that can be set up with the delta T across the thickness of the bale. I believe a significant component of a bale wall's thermal performance comes from the interstices being closed off from the outside atmosphere on both sides of the wall. <o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Verdana","sans-serif";color:black'> <o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Verdana","sans-serif";color:black'>I do not remember the particulars, but as I recall, there have been tests done on bale walls where the R-value was dramatically lower than in other tests and one of the differences was the lack of render on both sides of the wall.<o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Verdana","sans-serif";color:black'> <o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Verdana","sans-serif";color:black'>Thanks,<o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Verdana","sans-serif";color:black'> <o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Verdana","sans-serif";color:black'>Danny Buck<o:p></o:p></span></p></div><blockquote style='border:none;border-left:solid black 1.5pt;padding:0cm 0cm 0cm 4.0pt;margin-left:3.75pt;margin-top:5.0pt;margin-right:0cm;margin-bottom:5.0pt'><div><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:black'>----- Original Message ----- <o:p></o:p></span></p></div><div><p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:black'>From:</span></b><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:black'> <a href="mailto:vankrieken@gmail.com" title="mailto:vankrieken@gmail.com">Van Krieken</a> <o:p></o:p></span></p></div><div><p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:black'>To:</span></b><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:black'> <a href="mailto:GSBN@sustainablesources.com" title="mailto:GSBN@sustainablesources.com">Global Straw Building Network</a> <o:p></o:p></span></p></div><div><p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:black'>Sent:</span></b><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:black'> Tuesday, December 06, 2011 9:21 AM<o:p></o:p></span></p></div><div><p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:black'>Subject:</span></b><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:black'> Re: [GSBN] Fwd: Decrement factor of SB walls<o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Verdana","sans-serif";color:black'><o:p> </o:p></span></p></div><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Verdana","sans-serif";color:black'>Yes, Dereck, you're right. In this example there is no exterior plaster/render. Instead, there is a 16mm rainscreen panel (could be fiberwood). <o:p></o:p></span></p><div><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Verdana","sans-serif";color:black'>I attach here a picture of the example presented in the book.<o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Verdana","sans-serif";color:black'><o:p> </o:p></span></p></div><div><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Verdana","sans-serif";color:black'>Thanks<o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Verdana","sans-serif";color:black'><o:p> </o:p></span></p></div><div><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Verdana","sans-serif";color:black'>Jorge VK<o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Verdana","sans-serif";color:black'><o:p> </o:p></span></p></div><div><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Verdana","sans-serif";color:black'><o:p> </o:p></span></p></div><div><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Verdana","sans-serif";color:black'><o:p> </o:p></span></p></div><div><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Verdana","sans-serif";color:black'><o:p> </o:p></span></p></div><div><p class=MsoNormal style='margin-bottom:12.0pt'><span style='font-size:10.0pt;font-family:"Verdana","sans-serif";color:black'><o:p> </o:p></span></p><div><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Verdana","sans-serif";color:black'>On Tue, Dec 6, 2011 at 2:34 PM, Derek Roff <<a href="mailto:derek@unm.edu" target="_blank" title="mailto:derek@unm.edu">derek@unm.edu</a>> wrote:<o:p></o:p></span></p><div><div><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Verdana","sans-serif";color:black'>Thank you, Jorge, for greater details on the French research. It appears to me that the construction describes a wall with earthen plaster/render on the inside, and no plaster/render on the outside. Is this correct? If so, the lack of an exterior plaster/render layer would have a significant effect on the thermal characteristics, I would think. As well as fire resistance, structural rigidity, moisture buffering, and perhaps a bit of insect and rodent deterrence. I know that some people build this way, but it seems imprudent to me. Have I misunderstood the nature of the wall that Jean-Pierre Oliva and Samuel Courgey are describing/testing? <o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Verdana","sans-serif";color:black'><o:p> </o:p></span></p></div><div><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Verdana","sans-serif";color:black'>Thank you,<o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Verdana","sans-serif";color:black'>Derelict<o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Verdana","sans-serif";color:black'>Derek Roff<o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Verdana","sans-serif";color:#888888'><a href="mailto:derek@unm.edu" target="_blank" title="mailto:derek@unm.edu">derek@unm.edu</a><o:p></o:p></span></p></div><div><div><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Verdana","sans-serif";color:black'><o:p> </o:p></span></p><div><div><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Verdana","sans-serif";color:black'>On Dec 6, 2011, at 5:52 AM, Van Krieken wrote:<o:p></o:p></span></p></div><div><div><p class=MsoNormal style='margin-bottom:12.0pt'><span style='font-size:10.0pt;font-family:"Verdana","sans-serif";color:black'>John,<o:p></o:p></span></p></div><div><div><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Verdana","sans-serif";color:black'>As I wrote before, the best source of information (I have) about this issue it is the book writen by Jean-Pierre Oliva and Samuel Courgey ( L'Isolation Thermique Ecologique). <o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Verdana","sans-serif";color:black'><o:p> </o:p></span></p></div><div><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:#333333;background:whitesmoke'>Jean-Pierre Oliva is perhaps the best known french bio climatic architect, and since many years a great enthusiast of straw bale building. His books (also La Architecture Bioclimatique) can be found at Amazon.</span><span style='font-size:10.0pt;font-family:"Verdana","sans-serif";color:black'><o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Verdana","sans-serif";color:black'><o:p> </o:p></span></p></div><div><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:#333333;background:whitesmoke'>Unfortunately, this book is only in FRENCH. I am sorry if my translation was not well done, so I include here the original text in french.</span><span style='font-size:10.0pt;font-family:"Verdana","sans-serif";color:black'><o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Verdana","sans-serif";color:black'><o:p> </o:p></span></p></div><div><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Verdana","sans-serif";color:black'>Citing their book, page 175, concerning a wall with wood structure and straw bales with medium density (80 to 110 Kg/m3, strawbale section 34x46cm. Vented façade (or rainscreen claddind) in exterior, and interior with clay render.<o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Verdana","sans-serif";color:black'><o:p> </o:p></span></p></div><div><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Verdana","sans-serif";color:black'>Note.: </span><span style='color:black'>I attach to this discussion a paper wrote by </span><span style='font-size:10.5pt;font-family:"Arial","sans-serif";color:black;background:white'>Jim Carfrae</span><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:black;background:white'>, attached to this forum last January, 22, where you may have more information about the benefits on using of a rainscreen clading in a straw bale building, specially on humid climates.</span><span style='font-size:10.0pt;font-family:"Verdana","sans-serif";color:black'><o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Verdana","sans-serif";color:black'><o:p> </o:p></span></p></div><div><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:black;background:white'>The rainscreen cladding is included in the calculation of JeanPierre Oliva for this next example:</span><span style='font-size:10.0pt;font-family:"Verdana","sans-serif";color:black'><o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Verdana","sans-serif";color:black'><o:p> </o:p></span></p></div><div><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:black;background:white'>Wall:</span><span style='font-size:10.0pt;font-family:"Verdana","sans-serif";color:black'><o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Verdana","sans-serif";color:black'><o:p> </o:p></span></p></div><div><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:black'>1. Bardage bois (2cm)</span><span style='font-size:10.0pt;font-family:"Verdana","sans-serif";color:black'><o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:black'>2. lattes support et contre-latte (6cm minimum)</span><span style='font-size:10.0pt;font-family:"Verdana","sans-serif";color:black'><o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:black'>3. Panneaux pare-plui contreventans (16mm)</span><span style='font-size:10.0pt;font-family:"Verdana","sans-serif";color:black'><o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:black'>4. Poteaux bois massif (4x20 tous les 60cm)</span><span style='font-size:10.0pt;font-family:"Verdana","sans-serif";color:black'><o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:black'>5. Liteau de maintien des bottes (toutes les 2 bottes)</span><span style='font-size:10.0pt;font-family:"Verdana","sans-serif";color:black'><o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:black'>6. Botte de paille posé sur champ (36cm)</span><span style='font-size:10.0pt;font-family:"Verdana","sans-serif";color:black'><o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:black'>7. enduit terre (30mm)</span><span style='font-size:10.0pt;font-family:"Verdana","sans-serif";color:black'><o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Verdana","sans-serif";color:black'><o:p> </o:p></span></p></div><div><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:black'>Caracteristiques Thermiques et environnementales:</span><span style='font-size:10.0pt;font-family:"Verdana","sans-serif";color:black'><o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Verdana","sans-serif";color:black'><o:p> </o:p></span></p></div><div><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:black'>Coeficient de déperdition thermique U </span><span style='font-size:10.0pt;font-family:"Verdana","sans-serif";color:black'>(W/m2K) / R (m2K/W) .................................. 0,13 / 7,76<o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Verdana","sans-serif";color:black'>Pertes dues aux points thermiques intégrés.................................................................... 4%<o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Verdana","sans-serif";color:black'>Capacité thermique intérieure quotidienne</span><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:#333333;background:whitesmoke'>kWh/m2K).................................................. 15 (forte)</span><span style='font-size:10.0pt;font-family:"Verdana","sans-serif";color:black'><o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:black;background:white'>Capacité thermique intérieure séquentielle </span><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:#333333;background:whitesmoke'>....................................................................25 (moyenne)</span><span style='font-size:10.0pt;font-family:"Verdana","sans-serif";color:black'><o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:#333333;background:whitesmoke'>Déphasage (heure) / Atténuation du flux de chaleur (%)..............................................16h / 13%</span><span style='font-size:10.0pt;font-family:"Verdana","sans-serif";color:black'><o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:#333333;background:whitesmoke'>Epaisseur supplementaire pour atteindre le niveau "passif"....................................... 0</span><span style='font-size:10.0pt;font-family:"Verdana","sans-serif";color:black'><o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:#333333;background:whitesmoke'>Bilan "CO2" du m2 de paroi............................................................................................. -83 kg CO2 eq</span><span style='font-size:10.0pt;font-family:"Verdana","sans-serif";color:black'><o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:#333333;background:whitesmoke'>Bilan "energie grise" du m2 de paroi.............................................................................. 62 kWh</span><span style='font-size:10.0pt;font-family:"Verdana","sans-serif";color:black'><o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Verdana","sans-serif";color:black'><o:p> </o:p></span></p></div><div><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Verdana","sans-serif";color:black'><o:p> </o:p></span></p></div><div><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:black;background:white'>Translation (?):</span><span style='font-size:10.0pt;font-family:"Verdana","sans-serif";color:black'><o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Verdana","sans-serif";color:black'><o:p> </o:p></span></p></div><div><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Verdana","sans-serif";color:black'>1. Thermal loss U (W/m2K) / R (m2K/W) .................................. 0,13 / 7,76<o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Verdana","sans-serif";color:black'>2. Losses due to thermal bridges............................................... 4%<o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:#333333;background:whitesmoke'>3. Daily indoor heat capacity (kWh/m2K)................................ 15 (strong)</span><span style='font-size:10.0pt;font-family:"Verdana","sans-serif";color:black'><o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:#333333;background:whitesmoke'>4. Sequential indoor heat capacity (kWh/m2K).......................25 (medium)</span><span style='font-size:10.0pt;font-family:"Verdana","sans-serif";color:black'><o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:#333333;background:whitesmoke'>5. Phase shift (hour) / mitigation of the heat flux (%)............... 16h / 13%</span><span style='font-size:10.0pt;font-family:"Verdana","sans-serif";color:black'><o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Verdana","sans-serif";color:black'><o:p> </o:p></span></p></div><div><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Verdana","sans-serif";color:black'><o:p> </o:p></span></p></div><div><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Verdana","sans-serif";color:black'><o:p> </o:p></span></p></div><div><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:#333333;background:whitesmoke'>All the best</span><span style='font-size:10.0pt;font-family:"Verdana","sans-serif";color:black'><o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Verdana","sans-serif";color:black'><o:p> </o:p></span></p></div><div><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:#333333;background:whitesmoke'>Jorge VK</span><span style='font-size:10.0pt;font-family:"Verdana","sans-serif";color:black'><o:p></o:p></span></p></div></div></div><div><p class=MsoNormal style='margin-bottom:12.0pt'><span style='font-size:10.0pt;font-family:"Verdana","sans-serif";color:black'><br><br><o:p></o:p></span></p><div><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Verdana","sans-serif";color:black'>---------- Forwarded message ----------<br>From: <b>John Swearingen</b> <<a href="mailto:jswearingen@skillful-means.com" target="_blank" title="mailto:jswearingen@skillful-means.com">jswearingen@skillful-means.com</a>><br>Date: Tue, Nov 29, 2011 at 1:35 AM<br>Subject: Re: [GSBN] Decrement factor of SB walls<br>To: Global Straw Building Network <<a href="mailto:GSBN@sustainablesources.com" target="_blank" title="mailto:GSBN@sustainablesources.com">GSBN@sustainablesources.com</a>><br><br><br>This is very interesting, and fortunately in English. Unfortunately, I don't really know what it means. Can you explain more? <o:p></o:p></span></p><div><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Verdana","sans-serif";color:black'><o:p> </o:p></span></p></div><div><ul type=disc><li class=MsoNormal style='color:black;mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;mso-list:l0 level1 lfo1'><span style='font-size:10.0pt;font-family:"Verdana","sans-serif"'>U-value I know. <o:p></o:p></span></li><li class=MsoNormal style='color:black;mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;mso-list:l0 level1 lfo1'><span style='font-size:10.0pt;font-family:"Verdana","sans-serif"'>Thermal bridges to nowhere, I know, but what is a "vented facade" (above). <o:p></o:p></span></li><li class=MsoNormal style='color:black;mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;mso-list:l0 level1 lfo1'><span style='font-size:10.0pt;font-family:"Verdana","sans-serif"'>What are daily indoor heat capacities and sequential head capacities, and what does "strong" and "medium" mean? <o:p></o:p></span></li><li class=MsoNormal style='color:black;mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;mso-list:l0 level1 lfo1'><span style='font-size:10.0pt;font-family:"Verdana","sans-serif"'>Phase shift mitigation?<o:p></o:p></span></li></ul><div><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Verdana","sans-serif";color:black'>Thanks!<o:p></o:p></span></p></div></div><div><div><div><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Verdana","sans-serif";color:black'><o:p> </o:p></span></p><div><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Verdana","sans-serif";color:black'>On Mon, Nov 28, 2011 at 3:40 PM, Van Krieken <<a href="mailto:vankrieken@gmail.com" target="_blank" title="mailto:vankrieken@gmail.com">vankrieken@gmail.com</a>> wrote:<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Verdana","sans-serif";color:black'>Hi <o:p></o:p></span></p><div><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Verdana","sans-serif";color:black'><o:p> </o:p></span></p></div><div><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Verdana","sans-serif";color:black'>The best source of information about this issue (and many others concerning insulation, thermal mass, etc) it is the book writen by Jean-Pierre Oliva and Samuel Courgey ( L'Isolation Thermique Ecologique).<o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Verdana","sans-serif";color:black'><o:p> </o:p></span></p></div><div><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Verdana","sans-serif";color:black'>Citing their book, page 175, concerning a wall with wood structure and straw bales with medium density (80 to 110 Kg/m3, strawbale section 34x46cm. Vented façade in exterior, and interior with clay render.<o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Verdana","sans-serif";color:black'><o:p> </o:p></span></p></div><div><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Verdana","sans-serif";color:black'><o:p> </o:p></span></p></div><div><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Verdana","sans-serif";color:black'>Thermal loss U (W/m2K) / R (m2K/W) .................................. 0,13 / 7,76<o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Verdana","sans-serif";color:black'>Losses due to thermal bridges............................................... 4%<o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:#333333;background:whitesmoke'>Daily indoor heat capacity (kWh/m2K)................................ 15 (strong)</span><span style='font-size:10.0pt;font-family:"Verdana","sans-serif";color:black'><o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:#333333;background:whitesmoke'>Sequential indoor heat capacity (kWh/m2K).......................25 (medium)</span><span style='font-size:10.0pt;font-family:"Verdana","sans-serif";color:black'><o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:#333333;background:whitesmoke'>Phase shift (hour) / mitigation of the heat flux (%)............... 16h / 13%</span><span style='font-size:10.0pt;font-family:"Verdana","sans-serif";color:black'><o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Verdana","sans-serif";color:black'><o:p> </o:p></span></p></div><div><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:#333333;background:whitesmoke'>Unfortunately, this book is only in English. Jean-Pierre Oliva, is one of the best known french bio climatic architects, and since many years a great enthusiast of straw bale building. His books (also La Architectire Bioclimatique) can be found at Amazon.</span><span style='font-size:10.0pt;font-family:"Verdana","sans-serif";color:black'><o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Verdana","sans-serif";color:black'><o:p> </o:p></span></p></div><div><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Verdana","sans-serif";color:black'><o:p> </o:p></span></p></div><div><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:#333333;background:whitesmoke'>All the best</span><span style='font-size:10.0pt;font-family:"Verdana","sans-serif";color:black'><o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Verdana","sans-serif";color:black'><o:p> </o:p></span></p></div><div><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:#333333;background:whitesmoke'>Jorge VK</span><span style='font-size:10.0pt;font-family:"Verdana","sans-serif";color:black'><o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:#333333;background:whitesmoke'>Portugal</span><span style='font-size:10.0pt;font-family:"Verdana","sans-serif";color:black'><o:p></o:p></span></p></div></div></div></div></div></div></div></div><div><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Verdana","sans-serif";color:black'><o:p> </o:p></span></p></div><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Verdana","sans-serif";color:black'><o:p> </o:p></span></p></div></div></div><p class=MsoNormal style='margin-bottom:12.0pt'><span style='font-size:10.0pt;font-family:"Verdana","sans-serif";color:black'><br>_______________________________________________<br>GSBN mailing list<br><a href="mailto:GSBN@sustainablesources.com" target="_blank" title="mailto:GSBN@sustainablesources.com">GSBN@sustainablesources.com</a><br><a href="http://sustainablesources.com/mailman/listinfo.cgi/GSBN" target="_blank" title="http://sustainablesources.com/mailman/listinfo.cgi/GSBN">http://sustainablesources.com/mailman/listinfo.cgi/GSBN</a><o:p></o:p></span></p></div><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Verdana","sans-serif";color:black'><o:p> </o:p></span></p></div><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Verdana","sans-serif";color:black'>_______________________________________________<br>GSBN mailing list<br><a href="mailto:GSBN@sustainablesources.com">GSBN@sustainablesources.com</a><br><a href="http://sustainablesources.com/mailman/listinfo.cgi/GSBN">http://sustainablesources.com/mailman/listinfo.cgi/GSBN</a><o:p></o:p></span></p></blockquote></div></div></body></html>