Exterior, House Building Type, Sawtooth RoofLine, Glass Siding Material, Cabin Building Type, and Wood Siding Material A sheltered walkway  provides shade in summer, and admits the lower winter sun indoors to warm up the dark-dyed, glossy concrete floors.   Photo 2 of 15 in A Net-Zero Home in Canada Boasts a Striking Saw-Toothed Roof

A Net-Zero Home in Canada Boasts a Striking Saw-Toothed Roof2 of 15

A sheltered walkway provides shade in summer, and admits the lower winter sun indoors to warm up the dark, glossy concrete floors.

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