Laminated glass tames high frequencies, while secondary glazing adds a crucial air gap that starves sound of energy. Combine precise seals, adjustable stops, and deep, lined curtains for night. We’ll weigh costs, condensation risks, and historic-frame realities to craft an upgrade plan that truly earns quiet.
Replace hollow-core slabs with solid, dense options, then add perimeter gaskets and a quality sweep that meets a threshold. Close the undercut, seal latch mortises, and consider drop seals for carpeted rooms. Small carpentry touches here remove surprising amounts of chatter sneaking through hallways and shared corridors.
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