Leviticus 14:43-45

43“Now if the plague comes back and breaks out in the house, after he has taken away the stones, after he has scraped the house, and after it is plastered,

44then the priest shall come and look; and indeed if the plague has spread in the house, it is an active leprosy in the house. It is unclean.

45And he shall break down the house, its stones, its timber, and all the plaster of the house, and he shall carry them outside the city to an unclean place.