South facing elevations are subject to solar heat all day, the elliptical orbit of the earth around the sun combined with the earth axis means that southern elevations will be subject to continuous solar heat and solar glare. These areas require less heating due to solar heat gain, but are also far more prone to over heating and air conditioning in summer. Southern elevations can also be affected by excessive solar glare at certain times of the day, making these areas awkward to manage and use.
SunGuard High Selective SN 62/34 or SN 70/37
SN 62/34 has a very similar super neutral appearance to ClimaGuard
and SN 70/37, yet it offers advanced solar heat control, reducing solar heat
gains by 66% and therefore reducing demands on air conditioning in
this highly exposed area. It has a slightly lower light transmission helping to reduce solar glare whilst still providing natural daylight, and provides the same exceptionally low U value of 1.0 W/m2K helping to reduce heating demands.