<DIV>Hello Diego,</DIV>  <DIV> </DIV>  <DIV>         In my building problem, I am using  a window of single glazing, say U value 0f 5 W/m2.k.  <STRONG><FONT color=#ff007f>I want to insulate my window during night time</FONT></STRONG> only in order to mininize heat loss from the room that gained during daytime. <FONT color=#ff007f><STRONG>Could you please guide me the ways to do that?</STRONG></FONT></DIV>  <DIV>thanks in advance</DIV>  <DIV> </DIV>  <DIV>Regards,</DIV>  <DIV>Rajkumar.S</DIV>  <DIV>Research scholar,</DIV>  <DIV>CES, IIT Delhi</DIV>  <DIV>India.</DIV><p>
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