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</o:shapelayout></xml><![endif]--></head><body lang=EN-US link=blue vlink=purple><div class=WordSection1><p class=MsoNormal>Hi, every one.<o:p></o:p></p><p class=MsoNormal>I’m puzzled with which constructions & materials I should choose for the baseline modeling.<o:p></o:p></p><p class=MsoNormal>ASHRAE 90.1 shows that: “opaque assemblies used for new building or additions shall conform with <u>the following common, lightweight assembly types</u> and shall match the appropriate assembly maximum U-factors in tables 5.5-1 through 5.5-8.”<o:p></o:p></p><p class=MsoNormal>I have checked the Table 5.5 and I can be sure the U-factor, But I didn’t find the details of the “<u>following common, lightweight assembly types</u>” in the following description. What about you always do when you meet this problem? <o:p></o:p></p><p class=MsoNormal>Thank you very much.<o:p></o:p></p><p class=MsoNormal>Joey.<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p></div></body></html>