Passive House Planning Package

If you are building a passive house, you may want to consider going through PHPP (Passive House Planning Package) and Certification.
PHPP is recommended as it provides a scientific analysis of how your house will perform at the design stage.

Certified Passive House Design & Build, & PHPP Testing

If you are building a passive house, you may want to consider going through PHPP (Passive House Planning Package) and Certification.
PHPP is recommended as it provides a scientific analysis of how your house will perform at the design stage.

Certified Passive House Design & Build, & PHPP Testing Services

If you are building a passive house, you may want to consider going through PHPP (Passive House Planning Package) and Certification.  

PHPP is recommended as it provides a scientific analysis of how your house will perform at the design stage.  This allows any tweaking to the design to be made to meet certain criteria before the build starts and changes can no longer be made.  It is based upon physical algorithms and we contract our specialist PHPP advisers to undertake this work from around $2000 + GST.  You do not need to apply for certification if you only want PHPP completed.  We have a few PHPP advisers we can use but it is important to decide upon this at the start of the design process as information can begin to be collated for the subsequent calculations.

At the end of the exercise you will receive a report stating what your heating and cooling loads will be.  It will tell you whether your house will overheat or be too cold and what areas of the design could produce a better outcome.  It enables an informed decision to be made and consideration of any additional costs compared to the benefits it may provide.  For example, your PHPP calculations may reveal that you need to spend an additional $40k and go to timber windows in order to achieve full passive house certification rather than being just below it.  Your informed decision may be either that you can still achieve a high performing passive house and accept you would not get the certification or decide that gaining certification was your priority and the additional spend is justified.

Certification

If you intend to go for certification you will need to undertake PHPP.  Certification is approved by the International Passive House Association based in Germany.  There are now a couple of accreditors based in NZ.  There is a further cost for this.  

Certification means that it meets the strict international criteria for a ‘Certified Passive House’.  The criteria for heating and cooling loads are 15 kWh/m2 per year, and 10 W/m2 peak demand.  This is certainly the ultimate level if wanting a warm, healthy, energy efficient home.  

Due to the strict criteria the cost of achieving certification is a lot higher so a good understanding of what it is you want to achieve in terms of levels of comfort and energy efficiency, alongside your budget, is important.  We are happy to discuss this with you in detail and provide examples of our projects to assist.