Does New Zealand really build better than Australia? Architectural Designer Sharon Robinson compares building codes, energy modelling and weather tightness across the ditch.

Are your windows the weak link in your home's performance? In this episode, Sharon sits down with Stephanie Murphy from Ambiance to talk about UPVC windows and doors — what they are, why they outperform aluminium on thermal comfort, condensation, and weather tightness, and why they're becoming the smart choice for New Zealand homeowners. If you're building or renovating and want a healthier, more comfortable home, this one's for you.

“Airtightness isn’t about sealing people into buildings — it’s about controlling how air and moisture move through them. When warm, moist air leaks through gaps and cracks, it can condense inside walls and ceilings, leading to mould and long-term damage. Airtightness only works when it’s intentional and paired with proper ventilation.”