<table cellspacing="0" cellpadding="0" border="0" ><tr><td valign="top" style="font: inherit;"><DIV>Hello,</DIV>
<DIV> </DIV>
<DIV> I tried to create a new construction but failed.</DIV>
<DIV> I have added 3 layers:</DIV>
<DIV> layer Prim(db) Thick(mm) Description of material</DIV>
<DIV> i 1 246 6.0 low_e glass</DIV>
<DIV> j 2 0 12 air 0.17 0.17 0.17</DIV>
<DIV> k 3 243 6.0 clear float</DIV>
<DIV> ISO 6946 U h/u/d 2.846 3.111 2.555</DIV>
<DIV> </DIV>
<DIV>but when i change the k layer to antisun 6mm</DIV>
<DIV>the value of ISO is the same.</DIV>
<DIV> </DIV>
<DIV>So what is wrong with my steps?</DIV>
<DIV>Is the U value mean "heat transfer coefficient"?</DIV>
<DIV>I am looking forward somebody to reply me ASAP.</DIV>
<DIV>Thanks,</DIV>
<DIV>Teresa</DIV></td></tr></table><br>
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