A Public Access Sill is an aluminum composition. The sill in total is only 1/2″ high with a 1:2 ramp slope to meet Americans with Disabilities Act (ADA) requirements. The edges and threshold of the sill are only 1/4″ creating a small dam, to help prevent water from entering the dwelling. The sill also features a thermal break which helps to maintain the temperature of the interior side of the sill.
Updated on May 14, 2021