David Bolton Neoprene vs. PVC Astragal Seals on Door Pairs: Why the Seal Material Gets Chosen After the Gap, Not Before Why the Seal Material on a Door Pair Astragal Is Not a Default Decision This article is for contractors, facility managers, and project managers who are specifying or replacing the meeting-stile seal ... astragals and seals door pairs facility maintenance fire-rated doors weatherstrip May 20, 2026
David Bolton How to Specify Door Perimeter Weatherstrip: A Practical Guide for Commercial Projects Getting Door Perimeter Seals Right the First Time Perimeter weatherstrip is one of the most overlooked line items in a commercial hardware specification, yet it directly affects energy performance, oc... commercial door hardware door perimeter seal door specification gasketing weatherstrip Apr 22, 2026