Yeah, that means you live in cheap construction! This complex was originally intended as low income housing, don't take my word for it see: http://nautiluscondosrules.blogspot.com/2011/07/affordable-housing-options-concord.html
So our buildings are flagged for the fire department as having structures with light-frame truss floor and roof systems and they are marked with the letters “RF”.
Further details at: http://tinyurl.com/3zrwn77
"Knowing immediately upon arrival that a particular structure is prone to collapse will allow commanders to make a more informed decision about the risk of sending firefighters into a building for an offensive attack during a fire."
Read more about the markings at: http://www.newsherald.com/articles/fire-96142-rule-compliance.html#ixzz1VGGmquOt
Starting in 1996, 112 properties with 24,076 units, similar to NCC have been built in 6 states, and as said on the Atlantic Housing site http://www.atlantichousing.com/listings.cfm: "the Principals of Atlantic Housing Partners* have developed a well respected portfolio of affordable multi-family rental communities across the country".
Atlantic Housing builds them, Concord manages them and we are stuck living in them.
(* Atlantic Housing Partners, L.L.L.P., CPG Construction, L.L.L.P., CPG Construction, Global Realty and Concord Management, Ltd)