03/30/2026
One of the most common issues I find in row houses/duplexes. The party wall (firewall) between units must be fully finished (pink tape at joints as seen) through the attic space with 5/8” type X drywall, no gaps or framing visible to maintain a 60min fire rating between units. A gap like this creates a tunnel for fire/smoke to travel and completely negates the fire rating.
This particular unit had passed the superior safety code initial occupancy inspection as well as a home inspection at a later date (by another inspector).