On 8 Mar, 21:34, The Natural Philosopher wrote:

In modern houses, (post the ark basically) there should be a waterproof
outer coating, and the indside breaths to lower any moisture, and you
have ventilation to exhaust it from

If we were talking about "modern" houses, we either wouldn't be having
this conversation, or we'd be asking how to sue the builder for
getting it wrong. "Modern" in this sense is really quite modern, and
much newer than where many (most?) of us live. It's certainly far more
recent than the Ark.