property firewall

A property firewall is a fire-resistance-rated wall used to divide a building or separate adjoining buildings. This is done to prevent or slow the spread of fire, smoke, and heat from one area to another. To function as intended, a fire wall generally must be built and maintained in accordance with applicable building and fire codes, have protected openings, and retain sufficient structural stability during a fire. Property insurance underwriters may consider the presence, construction, continuity, and rating of a firewall as part of the underwriting process.