What is a firewall in a house

A firewall in a house is an exterior wall that extends continuously from the base of the building all the way to the roof. Firewalls are designed to remain structurally intact in the event of a fire, thus preventing the spread of fire from one side of the wall to the other. Firewalls are typically constructed from fire-resistant materials, such as brick, cement, or drywall. They can also contain fire-resistant doorways and windows to further restrict the spread of fire.

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