David Bolton Automatic Door Bottoms on Sound-Rated Openings: Why the Drop Seal Gets Selected After the Acoustical Test Is Already Scheduled The Drop Seal Decision That Happens Too Late This article is for contractors, facility managers, and architects managing sound-rated door openings in offices, healthcare suites, conference rooms, reco... STC door hardware acoustical doors automatic door bottoms door seals sound-rated openings Jun 14, 2026 Our Blog
David Bolton Full Surface vs. Semi-Mortised Automatic Door Bottoms: Picking the Right Mount for Your Opening What This Article Covers and Who It Helps Automatic door bottoms are specified across nearly every commercial building type — schools, healthcare facilities, office buildings, and industrial plants — ... Pemko automatic door bottoms door seals fire door hardware gasketing Apr 23, 2026 Our Blog