Go to Forum Home › CarbonLite Retrofit Training Course Discussion › What is the AECB position on filling cavity walls with polystyrene beads?

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    • 8 September 2023 at 6:29 pm #73441
      Grant McCowan
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        It would be good to understand the AECB position from both a building physics point of view and environmental viewpoint.  Should a cavity be filled?  Is there an alternative inert material that would not transmit moisture across the cavity that is natural or recycled?

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