My physics lab group and I have to build a house out of cardboard that will remain pretty cool when put under a heat lamp. It has to be 3000 dm^3 at the most and has to have 5 rooms and only 20% windows. The roof will be painted. Should we do 1 story or two? Do you know of any cites we can do research on this at? What color of paint: brown, black, grey or white? why?