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In April 2014 atmospheric carbon dioxide levels exceeded 400 parts per million for the first time in recorded history. The readings are taken hourly at Mauna Loa in Hawaii and…

In order to ensure that the heat pumps you specify will perform adequately all year round it is vital that they are accurately specified in terms of their CoP Coefficient…

In providing Rational Design energy assessment services we have modelled and assessed every classification of property type, in every climate zone in the country, and are yet to see any…

We have extensively modelled residential properties in the Eastern Cape climate zone with interesting results – what ‘works’ in Cape Town does not necessarily work in the milder Eastern Cape…

If the glazing-to-net-floor-area percentage is less than 15% then the SANS 10400XA prescriptive deemed-to-satisfy compliance route may appear to be the most simplistic path to follow on F1 classification projects.…

What happens if you submit an ‘incompetent’ Rational Design Energy Report…? By virtue of Regulation SANS 10400A A19 it is the obligation of the architectural professional to adequately provide sufficient…