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Joined 1 year ago
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Cake day: June 13th, 2023

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  • There is another thing that I sometimes talk about on here, breathability.
    You either need to prevent any moisture moving in any direction, or allow vapor to move with breathable materials.
    Ones that allow water vapor to move, but not liquid water.

    Older buildings, where the original materials were breathable, should ideally continue to use breathable materials. This prevents issues with water wicking through one old surface, then getting trapped behind another. It also removes the risk of damaged or badly designed vapor barriers allowing things through, as the materials themselves help get the moisture out as a passive action.