16/06/2026
Wiping condensation off the inside of your windows this winter?
It is so common in New Zealand homes that we have come to treat it as normal. But that water sitting on the glass is a sign the home is holding more moisture than it can clear, and where there is steady moisture, mould and that damp, musty feeling are rarely far behind.
A home built to high performance principles deals with this differently. A mechanical heat recovery ventilation system brings in constant fresh, filtered air and keeps humidity in check, whilst recovering heat from the stale air being expelled. At the same time high performance windows and an airtight, well-insulated envelope keep surfaces warm enough that moisture does not condense in the first place.
The result is a home that stays dry right through winter. No wiping down windowsills, no mould creeping into the corners, and air that feels fresh rather than stuffy.
A dry home is a healthier home, and a more durable one.