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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      Grant McCowan

        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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