UFC 3-120-01
FEBRUARY 6 2003
12.6.3. Graphics Options. Messages, emblems, arrows, rules and borders.
12.6.3.1. One-of-a-Kind Signs. Die-cut vinyl or reflective sheeting with adhesive backing is
used for unique signs such as building identification or destination signs. Use die-cut
reflective sheeting when nighttime visibility is required.
12.6.3.2. Multiple Signs. Graphics for mass produced signs such as bus route signs and
regulation signs are silk-screened. The graphics for non-reflective signs may be silk-screened
directly onto the painted sign face or screened onto adhesive backed vinyl sheeting and then
applied to the sign face. The graphics for reflective signs shall be silk-screened onto white
reflective sheeting.
12.6.3.3. Decals. Decals for shields, emblems and symbols shall be silk screened onto
adhesive backed vinyl sheeting orreflective sheeting, as appropriate, and die-cut for later
applications to the sign face.
12.6.4. Nighttime Visibility (Reflectivity).
12.6.4.1. Reflective Graphics on Non-reflective Background. Graphics die-cut from
reflective sheeting and applied to a non-reflective background such as a baked enamel finish
or vinyl sheeting are the most cost effective way to achieve good nighttime visibility.
12.6.4.2. Reflective Graphics on Reflective Background. Graphics die-cut from reflective
sheeting and applied to a reflective background (reflective sheeting) provide the best
visibility. The base sign shop's level of experience with reflective sheeting should be
considered in the final selection of the background material.
12.6.5. Nighttime Visibility (Illumination). While the use of reflective materials is the most cost-
effective way to achieve night visibility, it is sometimes appropriate to illuminate major signs
such as Type A1 and A2 Base Identification signs and the Type F1b Base Changeable Letter
signs.
12.6.5.1. External Illumination.
12.6.5.1.1. Large base-mounted signs, such as Sign Types A1, A2 and F1b, can be
illuminated with two 150W PAR floodlights placed in front of the sign face at the quarter
points. Freestanding signs, such as Sign Types F2 and G1, can be illuminated by a 75W
PAR spotlight. The lights are placed at ground level at a distance from the sign equal to
the sign's height. (For example: the light source for a Type G1 sign, which is 1 980 mm
(6'- 6) tall, should be placed at a distance of 1 980 mm (6'- 6") from the sign).
12.6.5.1.2. The sign face should be evenly illuminated, with no hot spots. Glare should be
controlled so that the illumination is confined to the sign face only. The light fixture
should be unobtrusive and should have a neat daytime appearance.
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