Wrong ventilation and heating by the occupants as well as leakages in the building envelope are the reasons why mould develops. Learn how to avoid this!
Most new buildings in the UK and Ireland must undergo a blower door test to measure their airtightness. Make sure you are ready on the day of your test with this handy checklist.
We compare airtightness & windtightness with the onion skin principle. Learn what can happen if a building is not air- or windtight.
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