Here are a few basic guidelines to ensure that your signs meet the requirements and are compliant:
Characters must be clean, uppercase and with no serifs.
Also known as spacing between characters. There must be at least 1/8 inch between the two closest points of any tactile characters.
The maximum height of a tactile is 2 inches, the minimum
5/8 inch - with the exception of raised characters, which can be just 1/2 inch.
Braille dots must be domed or rounded.
MOUNTING: Tactile characters on signs should be located a minimum of 48 inches above the floor and 60 inches maximum.
Many businesses are totally unaware of the ADA requirements for sign compliance, but knowing the above is key to avoiding serious fines and insurance liability claims.