I live on the Sunshine Coast and am building a double storey house. I was wondering what the temperature difference would be between a Colorbond Windspray roof versus a Shale Grey roof?

We are building a 7.3 provisionally star rated home in Duncraig, Perth.

I have been heavily invested on making this home thermally comfortable as I’ve never been so cold as I have in Australian homes in winter!

I’m 17 years old and from The Netherlands. I am writing my final essay about Sustainable Housing. I would like to become an architect one day and was hoping you could answer some questions.

We are in a 1907 double brick federation house on a limestone foundation with a badly built 1980s extension on a concrete slab at the back. It has badly sealed doors and windows (single glazing), limited window fittings, two electric fans venting into the attic.