"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." Genuine down insulation comes from duck and goose feathers, and is the warmest insulator you can get.

BUFFALO, N.Y. ­— Traditional forms of thermal insulation used to regulate temperatures in homes and commercials buildings are often energy-intensive to manufacture, resulting in significant greenhouse ...

Researchers have demonstrated the ability to engineer materials that are both stiff and capable of insulating against heat. This combination of properties is extremely unusual and holds promise for a ...

When energy bills spike unexpectedly, property owners often scramble for quick fixes. Yet the real solution lies hidden within walls, attics and crawl spaces where inadequate insulation quietly drains ...