nordanney
2024-12-05 20:13:59
- #1
By publishing the plans. Or if you have already seen the cavity, for example during window replacement. The normal case in old buildings is 3-4 cm if there is only one air layer. According to the standard, 15 cm is currently the maximum – but then with core insulation. What is your total wall thickness? From that, the thickness of the air layer can possibly also be derived. You could, for example, also have a Lippisches Luftmauerwerk with a total thickness of about 31-33 cm. That would actually be the only possible reason from the past to have such a strong air layer.How can I further explain the large cavity?