Happy Valley Posted January 4, 2022 Share Posted January 4, 2022 We have 3 steel uprights that require an insulated cavity closer. I can find the different widths but are there ones that better insulated than others? They appear to be foam backed but none mention anything about insulation performance. Link to comment Share on other sites More sharing options...
MikeGrahamT21 Posted January 4, 2022 Share Posted January 4, 2022 The cheaper ones will use EPS, more expensive ones use XPS, XPS performs slightly better, and i do mean slightly. 1 Link to comment Share on other sites More sharing options...
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