Passive House in Christchurch

Harley Builders are currently working on a certified Passive House in Christchurch. The Blower

Door test was successful and the result was:  0.35 airchanges/hour. To get the certification of a

Passive House, we usually need 0.60 airchanges/per hour. That is a great result for Harley Builders.

Harley Builders

If you want to learn more about a Blower Door Test please click here

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