28/12/2025
🌬 Passive Home Design | Part 4: Airtightness & Ventilation
A high-performing home starts with getting the unseen details right.
Airtight construction plays a critical role in maintaining comfort by preventing unwanted heat loss in winter and heat gain in summer. It also keeps out drafts, dust, and moisture - all while improving overall energy efficiency.
But airtight doesn’t mean stale.
That’s where controlled ventilation systems (such as HRVs or ERVs) come in. These systems introduce fresh, filtered air while retaining warmth, so your home stays healthy without sacrificing performance.
Why this matters:
✔️ Reduced energy use and lower running costs
✔️ Cleaner, healthier indoor air
✔️ Less condensation and mould risk
✔️ Consistent comfort all year round
The balance is key.
Build tight. Ventilate properly.
📍 Smart design leads to better living.