Let the light in but keep the heat out with these tips for energy-efficient windows
Photo: Thomas J. Story
When sunlight shines through south-facing glass and hits a surface with thermal mass inside the house (such as concrete, stone, or brick), the material absorbs and later releases the heat into the surrounding air. The trick is to size and place your windows and skylights appropriately, and add correctly sized overhangs or shading, to get the right amount of heat. An experienced architect can help you determine the right mix for your particular climate.