(adsbygoogle = window.adsbygoogle || []).push({}); I noticed last night when playing tranzit on custom mode that When I repair windows it appears to put steel beams on instead of wood boards. It's also appears to take the zombies longer to tear the steel beams off longer than regular boards. my friend and I tested it and the zombies tear his boards off faster than mine. My question is does anyone know why this is and what I did to do this cause I have no idea? Thanks

At first the windows are boarded up with nails. Repair so many barriers and they turn to screws making it harder for zombies to break. Think its like repair 50 windows or something along the lines.