Wood Siding Material, House Building Type, Metal Siding Material, Outdoor, Slope, Grass, Walkways, and Trees In the winter, the polished concrete floor, which faces a large south-facing opening, accumulates heat from the sun during the day and keeps this heat indoors at night.  Photo 2 of 8 in 7 Incredible Modern Homes by Canadian Architect Paul Bernier

7 Incredible Modern Homes by Canadian Architect Paul Bernier

2 of 8

In the winter, the polished-concrete floor, which connects to a large, south-facing opening, accumulates heat from the sun during the day and keeps it indoors at night.