Definitions:
"Light-frame
truss-type construction" means a type of construction whose
primary structural elements are formed by a system of repetitive
wood or light gauge steel framing members.
1. The Owner of any
commercial or industrial structure, or any multi-family
residential structure of three units or more, that uses
light-frame truss-type construction shall mark the structure
with a symbol warning firefighters conducting fire control and
other emergency operations of the existence of light-frame
truss-type construction within the structure. FL 633.027 (1)
2. The Symbol shall be Maltese
Cross shaped, bright red reflective color, and measure 8 inches
vertically and 8 inches horizontally.
3. The designated Symbols are as
follows:

Structures with
light-frame floor trusses shall be marked with the letter "F",
structures with light-frame roof trusses shall be marked with
the letter "R", and structures with light-frame floor and roof
trusses shall be marked with the letters "FR".
4. The Symbol shall be
permanently affixed to the face of the structure on a
contrasting background, or attached to a contrasting background
which is then permanently attached to the structure.
5. The Symbol shall be placed
within 24 inches to the left of the main entry door.
6. The height of the Symbol shall
not be placed less than 4 feet above the finished floor.
7. The height of the Symbol shall
not be more than 6 feet above the finished floor.
8. The Authority Having
Jurisdiction (AHJ) is authorized to require additional symbols
in buildings with multiple main entry doors. In such structures,
approved symbols shall be marked on one side of the structure
only and spaced not closer than 100 feet or at each end of the
structure when such structure is less than 100 feet on length.
9. The complete Rule 69A-60.0081
is available on the State Fire Marshal web site under Rules and
the State Fire Marshal.