Is a Passivhaus Building a “Hermetically Sealed” box?
Here's a good article clarifying "air tightness' and 'breathable construction' : Is a Passivhaus Building a “Hermetically Sealed” box? - PASSIVHAUS IN PLAIN ENGLISH & MORE.
Here's a good article clarifying "air tightness' and 'breathable construction' : Is a Passivhaus Building a “Hermetically Sealed” box? - PASSIVHAUS IN PLAIN ENGLISH & MORE.