FEBRUARY 6 2003
12.15. Wall Mounted Exterior Sign Options. Wall mounted dimensional letters may be fabricated
in injection molded acrylic plastic, cast aluminum, or fabricated aluminum. Plastic letters should be
finished in semi-gloss acrylic enamel. Aluminum letters should be finished in semi-gloss baked
enamel. Colors should match those shown in paragraph 2.18 of this pamphlet.
12.15.1. Letter Materials. Aluminum letters are attractive and durable, but expensive. Acrylic
plastic letters can be purchased for half the price of aluminum letters, but are less durable,
particularly in hot climates. Each base should decide which is the most cost-effective product for
its needs. It is recommended that aluminum letters be used in new construction, while acrylic
plastic letters may be more appropriate for a base-wide retrofit program. Styrofoam dimensional
letters do not have sufficient durability for exterior applications, so their use is discouraged.
12.16. Wall Mounted Exterior Sign Specifications.
12.16.1. Letter Size. 150 mm (6") CAP height letters shall have a 13 mm (") minimum depth.
300 mm (12"), 450 mm (18") and 600 mm (24") CAP height letters shall have a 19 mm ( 3/4")
to 25 mm (1") minimum depth.
12.16.2. Letter Forms. The letters shall be channel shaped in section with sharp, not rounded,
corners. The letter forms shall match those shown in Figures 2.1 and 2.2. All edges and corners
shall be true and clean.
12.16.3. Letter Mounting. The letters shall be mounted to the wall according to the
manufacturers' specifications. Recommended mounting techniques are shown in Figure 12.11.
12.16.4. Hangar Numbers. Large wall mounted numbers for hangars shall be individually cut
from " (6 mm) aluminum plate and mounted with jack nuts, bolts or masonry anchors as
required. The numbers shall be finished in semi-gloss baked enamel.
12.16.5. Emblem Mounting. Organizational emblems shall be mounted either on a sign panel or
on a silhouetted panel with a 25 mm (1") return all around. See Figure 10.11.
Section 12F--Interior Signs Options
12.17. Colors and Finishes. Interior
signs should relate
to interior architecture
and color schemes
whenever possible. The colors and finishes for the interior signs shown in this pamphlet are intended
only as an example. Standard brown or any dark color appropriate to the specific interior
environment may be used.
12.18. Graphics. Graphics for interior signs are separated into three categories, ADA compliant
permanent graphics, such as permanent room identification signs, non-compliant permanent
graphics, such as header panels for directories and directional signs, and changeable graphics, such
as changeable letters for building directories and name insert cards identifying tenants.
12.19. Interior Signs Permanent Graphics. ADA compliant letters, numbers and Braille may be
applied to the sign face by either surface applying photo-polymer or sandblasted engraving stock.