The roof over the rear of the homes is at a 22 degree angle in order to maximise the south facing potential of the home. Also, as the the sun angle during winter is 20 degrees at midday, a 22 degree roof pitch maximizing the operating potential of the PV and solar thermal panels during the winter months when the sun is weaker.

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Did you know?</h3>
Fact 37</p>
A timber frame house will need air conditioning approximately 20 years before a concrete building.<br>
Source:&nbsp;<a href="">
Whole Life Performance Research by the Concrete Centre </a>