2010-002

From: "Buerkle, Rose" <Buerkle.Rose@jdirving.com> Date: 2010-02-05 (Fri) 13:08:45 AST Subject: Questions about windows in a passive solar home in NB

Hi There,

My partner and I are building a passive solar home just outside of Saint John. We are in the process of sourcing windows, and were wondering whether you would recommend double or triple glazed? We'll have about 11% south glazing, and have adequate thermal mass to compensate. Is there much of a trade off between the south facing windows' R-value (or U value) and the windows' solar gain?

Thanks,

Rose Buerkle

V. Rose Buerkle, MScE Programmer Analyst J.D. Irving, Limited (506) 633-5209