<html><head><style type="text/css"><!-- DIV {margin:0px;} --></style></head><body><div style="font-family:times new roman, new york, times, serif;font-size:12pt"><DIV>Hello,</DIV>
<DIV> </DIV>
<DIV>I have two U values for my glass, a winter U-value and summer U-value. Does it mean that if my building is located in climate zone 1 where no winter exist I should be using the summer U-value? And if my building is in a zone where there is winter I should be using winter U-values?</DIV>
<DIV> </DIV>
<DIV>Thank you in advance for replies.</DIV></div><br>
</body></html>