The earliest known form of insulation was during the Middle Ages. The walls of homes were stuffed with mud and straw to keep out the cold.
Asbestos insulation originated in ancient Greece. The term translates to mean “inextinguishable.”
In the 1970s, companies traded asbestos insulation for fiberglass insulation, after discovering the harmful effects asbestos has on lungs.Today, an un-insulated home can lose up to 60% of its energy through walls and the attic