163: The Facts About Airtightness

Walls (and roofs and floors) of buildings have become complicated. As we’ve increased the level of insulation, we’ve created some new problems, like condensation. This has been aggravated by the addition of layers into the wall that reduce air movement. So how do you create a wall that keeps you warm but will also stay dry? I Read More …

153: Simple is the New Smart Home

What makes a ‘smart home’? Paul Dowsett and his team at Sustainable.To are dedicate to creating affordable, healthy and energy efficient homes, because that’s what Paul believes is ‘the right thing to do’. I think that a pretty good definition for a ‘smart home’. And the best way to achieve it? Keep it simple. Simple Read More …

140 What happens when eco becomes mainstream?

Marketing can be used in an ‘evil’ way, but Kristy Hoare always wanted to use her marketing skills for good. She’s done this by helping to promote products that she believes can me the world better. As solar power and eco homes become more mainstream, it’s increasingly important to have somewhere to find unbiased information, and that’s Read More …

139: The Future of Green Design

The terms ‘sustainability’ and ‘eco’ are not obvious on Adam Taylor’s website. They are there (see if you can find them). But perhaps the future of green design is embedded in good design. Not something separate. Homestar Practitioner Among other things, Adam is a Homestar Practitioner. There’s nothing particularly special about this nowadays, except when you Read More …

138 Dr. Allison Bailes Energy Vanguard

Dr Allison Bailes III uses his PhD in physics and his background in teaching, to educate the world about better buildings. Through his company Energy Vanguard, Dr Bailes has been recognised as a great communicator, turning complex ideas like relative humidity and psychrometrics, into understandable fundamentals for better home performance. The Phsyics of Good Buildings Read More …

136: Thermal Mass Is Not That Useful

I recall visiting one of the fist 8 Homestar homes in Christchurch and being surprised that this new show home had a suspended timber floor. The double layer of insulation gave the floor a very impressive R-value, far better than any concrete floor slab I’d seen recently. All well-and-good, I thought. But thermally, surely it couldn’t be Read More …

124: A Deeper Shade of Green

Want to create a passive solar, healthy, energy and water efficient home with your existing house? Get access to Johann for a three part workshop at a ridiculously low price! Spots are limited so register now! Dr Johann Bernhardt originally came to New Zealand, expecting to stay for a year. That was about 30 years Read More …

119: Green Home Building

Kelly Hart is an amazing thinker and innovator. He’s passionate about the environment and generous with the resources and learning he shares. Notes for the episode are to come. In the meantime, here’s what you need to know: Green Home Building Kelly Hart’s amazing hub of resources and links: GreenHomeBuilding.com Source of alternative house plans: DreamGreenHomes Read More …