NUMBERING SYSTEM FOR FIRE RATED ASSEMBLIES
TYPES OF PROTECTION
Direct Applied Protection
Floors-Ceilings
A,B*,or C*ááááááááááááá Concrete and Cellular Steel Floor
D,
E* or F*ááááááááááááááááááááááááááááááááááááááááááááá Concrete and Steel Floor Units
G,
H*, or I*áááááááááááááááááááááááááááá Concrete and Steel Joists
J or
Kááááááááááááááááááááááááááááááááááááá Concrete
L or
M* Wood Joist orááááááááááááá Combination Wood and Steel Assemblies
Batts & Blankets or Mineralá and Fiber Boards
Beams:ááááááááááááááááááááááááááááááááááááááááááááááááá
N or O* for Floor-Ceiling
Roof-Ceiling:ááááááááááááááááááááááááááááááááááááááá P, Q* or R*
Beams:ááááááááááááááááááááááááááááááááááááááááááááááááááá
S or T* Roof-Ceiling
Metal Panels Gypsum Bd. Lath and/or Plaster
Metal Stud Gypsum
Bd. Lath and/or Plaster
Wood Stud Gypsum Bd. Lath and/or Plaster
Bldg. or Partition
Panelá Units
Wall
& Partition:áááááááááááááááááááááááááááááááááá U, V or W*
Batts & Blankets or Mineral & Fiber Boards
The
prefix numbers with an asterisk (*) and the design numbers indicated as
"Reserved" in the above table are for future expansion and to cater to new types of systems