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</o:shapelayout></xml><![endif]--></head><body lang=EN-US link=blue vlink=purple><div class=WordSection1><p class=MsoNormal>Good morning experts,<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>I have a question, we have received a comment from a LEED reviewer requesting for the following information:<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><i>Table 1.4 of the template appears to indicate that all the assembly U-value for the exterior walls in the Proposed model may not account for the thermal breaks due to the steel-framing portion of the construction assembly. Each construction assembly U-value is not a direct inverse of the insulation R-value for that construction assembly. The R-value of the insulation located between the steel framing must be de-rated when determining the assembly U-value for the exterior wall assembly to account for the reduced thermal resistance of the metal framing components. Revise the Proposed model, as needed, so that all components of the exterior wall construction assembly are accounted for when calculating the assembly U-value for assembly type in the actual design. In addition, update Table 1.4 reflecting the changes. Refer to Table A3.3 in ASHRAE Standard 90.1-2004 for additional guidance regarding how to de-rate the R-value for insulation located between steel framing assemblies.<o:p></o:p></i></p><p class=MsoNormal><i><o:p> </o:p></i></p><p class=MsoNormal>We have the following wall composition in the project:<o:p></o:p></p><p class=MsoNormal><i><img width=435 height=345 id="Picture_x0020_2" src="cid:image008.jpg@01CFED22.90970100"><o:p></o:p></i></p><p class=MsoNormal><i><o:p> </o:p></i></p><p class=MsoNormal>And we are using the following assembly value: U-0.125 (= R8 Assembly) based on table A3.1A .<o:p></o:p></p><p class=MsoNormal><i><img width=685 height=176 id="_x0000_i1031" src="cid:image010.jpg@01CFED22.90970100"><o:p></o:p></i></p><p class=MsoNormal><i><img width=683 height=118 id="_x0000_i1030" src="cid:image011.jpg@01CFED22.90970100"><o:p></o:p></i></p><p class=MsoNormal><i><o:p> </o:p></i></p><p class=MsoNormal>However since this table in my understanding is only accounting for the <b><u>concrete block, the insulation and the metal framing</u></b>, I have added the <b>5/8” gypsum board (layer 1)</b> and the <b>5/8” hardie board (layer 7)</b> to the modeled assembly as below.<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><img width=591 height=398 id="Picture_x0020_5" src="cid:image015.jpg@01CFED22.90970100"><o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Do you think the reviewer would object in any of this process? Or do you consider it should be done differently?<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Thank you for your answers, greatly appreciated.<o:p></o:p></p><p class=MsoNormal><i><o:p> </o:p></i></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal style='text-autospace:none'><b><span style='font-size:9.0pt;font-family:"Century Gothic","sans-serif";color:black'>Catalina Caballero</span></b><span style='font-size:9.0pt;font-family:"Century Gothic","sans-serif";color:black'>. AIA. Assoc., LEED GA.<o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><i><span style='font-size:9.0pt;font-family:"Century Gothic","sans-serif";color:black'>Sustainability Coordinator<o:p></o:p></span></i></p><p class=MsoNormal style='text-autospace:none'><i><span style='font-size:9.0pt;font-family:"Century Gothic","sans-serif";color:gray'><o:p> </o:p></span></i></p><p class=MsoNormal style='text-autospace:none'><b><span style='font-size:9.0pt;font-family:"Century Gothic","sans-serif";color:black'>Johnson, Avedano, Lopez, Rodriguez & Walewski Engineering Group, Inc.<o:p></o:p></span></b></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:9.0pt;font-family:"Century Gothic","sans-serif";color:#00B050'>Engineering for High Performance Buildings.<o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><i><span style='font-size:9.0pt;font-family:"Century Gothic","sans-serif";color:black'>MEPF - BIM - LEED - Cx<o:p></o:p></span></i></p><p 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