Non-Tactile Signage
The legibility of printed characters is a function of the viewing distance, character height and proportion, font, and the color contrast between character and background, the finish, and the lighting. Specifications for character size and proportion and sign finish and contrast apply to signs providing information about a room or space ("Employees Only"), direction to rooms, spaces and building elements, labeling not required to be tactile of elements and rooms ("Service Entrance"), rules of conduct, and overhead signs.
| TACTILE | NON-TACTILE | |
| Character Proportion Font/ Style | raised characters: · sans or "simple" serif · upper case only |
· width-to-height ratios for character & stroke · lower case allowed |
| Character Height | · raised characters: 5/8" - 2" (raised 1/32" min.) |
· based on viewing distance · 3" min for overhead signs |
| Braille | · grade II required | N/A |
| Pictograms | where provided: · 6" min. field height · raised & Braille verbal description below (pictograms are not required to be raised) |
access symbols required by ADAAG: · specified content · color contrast (other types not covered) |
| Finish & Contrast | · light/dark contrast · non-glare finish |
· light/dark contrast · non-glare finish |
| Location | · 60" height to centerline on wall at latch side of doors | · 80" min. vertical clearance for overhead signs |
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