Is automation of doors required?
Automation of doors is not required by the Standards, but it is highly recommended for entrance doors where the opening force is significant. A maximum opening force is not specified for exterior hinged doors because of the closing force typically necessary for ensuring positive latch against wind loading, air pressure, and other conditions. This often results in opening forces well above the 5 lbf maximum. Difficulty opening exterior swing doors is a common complaint. Automation offers the best solution. Otherwise, closers should be set with the minimum force practicable.
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