A smoke hole (smokehole, smoke-hole) is a hole in a roof for the smoke from a fire to vent.[1] Before the invention of the smoke hood or chimney, many dwellings had smoke holes to allow the smoke from the hearth to escape. Pre-modern English homes with unglazed windows or thatch roofs required no special vent for smoke. These structures typically had only one story for living spaces, and inhabitants made do with a band of relatively clear air near the ground.[2]