According to my literature search a lot has been written about moisture problems in so called "cold attics" (not conditioned, that is, in particular not heated), mostly in Scandinavia, including Denmark, the USA and Canada.

However, according to what I have found except for two exceptions in works in the team of Prof. C.-E. Hagentoft, Chalmers University Sweden, due to the traditional wood based building culture in the above regions, I have found nothing about moisture problems in cold attics above concrete ceilings.

Nevertheless, moisture problems above concrete ceilings in practice do happen, though admittedly, as it seems, much less pronouncedly than above wooden ceilings, seemingly because of the reduced airtightness problem above concrete ceilings.

On the other hand there are new moisture sources/channels in the attics of masonry/concrete buildings such as the moist concrete slab itself and masonry/concrete walls ending at or confining the attic.

Is there any research available or ongoing about cold attics above concrete ceilings?

We are currently setting up the design for a lab experiment combined with HAM simulation which is based on a concrete problem reoccurring in an Austrian building company.

Any hints welcome.

Thanks in advance and kind regards,

T. Lewis