Episode 29: Casper Valentin

About this episode

Casper Valentin discusses his journey to high-performance building and the features of his Passive House.

In this episode, Casper Valintin shares his journey from a childhood split between Brunei and Scotland to careers in horticulture and IT — and ultimately, to a deep passion for high-performance building. After constructing his first ICF block home in Hamilton, New Zealand, Casper became a strong advocate for Passive House principles. He talks through the features of his own home, including 400mm of roof insulation, continuous slab insulation, and a Zehnder ground-source ventilation system. With sensors tracking performance, he’s fine-tuned the house to maintain a consistent 20°C indoors — proving how smart design, insulation, and ventilation can deliver lasting comfort and efficiency. Special Guest: Casper Valentin.

People in this episode

Guest: Casper Valentin

Topics covered

• high-performance building
• Passive House principles
• insulation
• ventilation
• sustainable design

Keywords

• high-performance building
• Passive House
• insulation
• ventilation
• sustainable design
• Zehnder system
• energy efficiency

Mentioned in this episode

Organizations: Passive House

Products: Zehnder ground-source ventilation system

Places: Brunei, Scotland, Hamilton, New Zealand

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• Episode 37: 8 Fundamentals to Home Design - Chris Laumer-Giddens · May 5, 2026 · 57 min
• Episode 36: Yes, you can build a whole home with a truss! Kim Aitkin · March 31, 2026 · 42 min
• Episode 35: What happens when things go wrong? - Peter Raimondo · February 16, 2026 · 46 min
• Episode 34: Eco-Friendly Construction - Simon Wansbrough · February 3, 2026 · 23 min
• Episode 33: Freidrich Strey · January 12, 2026 · 1h 17m