External Post Boxes: A Step Towards Airtightness
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Airtightness has always been fundamental to Passive Haus design, however, with a focus on thermal efficiency, it is now an objective on every UK building project. What role do external post boxes play in helping to reach airtightness standards and …
Airtightness has always been fundamental to Passive Haus design, however, with a focus on thermal efficiency, it is now an objective on every UK building project. What role do external post boxes play in helping to reach airtightness standards and …