It has been almost a year since Luke Mahon took ownership of a new-build developer house, which he soon discovered lacked insulation! He talks us through his experience and the ongoing battle to get the house completed.

See the full show notes: http://www.houseplanninghelp.com/99.

Architect, builder and Passivhaus Consultant, Christina Snyder shares the story of the experimental zero-energy Passivhaus self-build that she and her husband have undertaken in Michigan, and explains why they are in no rush to complete it.

Peter Warm from WARM: Low Energy Building Practice explains why building to Passivhaus standard is desirable, how certification comes into the equation, and what steps will increase your chances of reaching certification.

Kara Rosemeier from Passive House Academy New Zealand looks at why natural ventilation leads to little control of ventilation. She also shares why the Passivhaus approach is the logical step forwards.

Harold Orr reflects on why the Saskatchewan Conservation House was a landmark on the road to high performance buildings.

Brian Murphy from Green Building Encyclopaedia runs through the most common types of insulation and explains why they each have strengths and weaknesses.

Tad Everhart, an energy adviser from Portland, Oregon, shares his story of building a house . . . which he retrofitted 10 years later after learning about Passivhaus. We find out why he was motivated to take on the challenge, how he went about it and whether all the hard work was worth it.

Professor Tom Woolley from Rachel Bevan Architects explains what hempcrete is, how it is mixed and applied, and what the pros and cons of using it are.

Tomás O’Leary from the Passive House Academy explains why he became an early adopter of the Passivhaus standard and also shares why we need to take every opportunity to retrofit existing buildings, even if it is a phased approach.

Darren Macri from Bleu Nest is a certified Passivhaus builder and consultant, and he explains what this means and how putting together a team who have had training is likely to benefit your low energy build.

He also has insights into his own house build which is nearing completion.