Building a home...16 Oct 2017...the exterior is 'wrapped' in green insulation material and the roof is tiled, Roof perimeter has a 'fence' to protect the roof tilers from falls. Black tiles would seem to absorb summer heat more than some.   A pile of scrap has grown.

 Homes are designed with various measures to reach a required score suitable to overcome hot or cold weather and to save energy using thick insulation in walls or ceiling or under floor, concrete areas as a heat sink, suitable building materials and reflective colours, window features and placement, solar, appropriate sized eaves, best use of aspect - and other measures.