#1 - The lovely roof will not only keep the rain off our heads but will also hold the solar panels for our hot water/hydronic heating and possible future electricity production. The roof faces solar north and, apparently, the slope (around 34 degrees) is at optimal pitch for maximum solar gain across all seasons in the Melbourne region.#2 - Rolled out underneath the colorbond is Air-Cell an ultra-thin thermo-reflective insulation that is fibre-free and non-allergenic. In conjunction with the bulk insulation batts to go in the roof space it will help keep us cool in Summer and warm in Winter.
#3 - The whole house has been sited for maxium passive solar gain, which wasn't too hard as the block runs north-south and is kind of big enough to put a house in a good location. It does help explain why it is a long, narrow house - maximal North facing windows! Loads of natural light! passive heating!
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