[Greenbuilding] Imagining NZE
John Straube
jfstraube at gmail.com
Thu Jan 27 07:19:06 CST 2011
I think that "coming close" is the key here.
If one aims for the environmentally important targets, 120 kWh/m2/yr of primary energy, airtight, highly insulated good windows, ventilation, then I too cant image a NZE that is not meeting the PH standard
The issue is the dogmatic adherence to specific targets that are not justifiably rigid (like the ACH, 1 @50 is fine in Boston for example).
On 2011-01-27, at 8:14 AM, nick pine wrote:
> Gordon Howell writes:
>
>> ----- I can't imagine a NZE house being rationally made without being at least really close to the PH standard.
>
> ... 0.6 ACH at 50 Pa seems like overkill, given passive solar air heating instead of direct gain and heat storage for a few cloudy days.
>
> Nick
>
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Dr John Straube, P.Eng.
Associate Professor
University of Waterloo
Dept of Civil Eng. & School of Architecture
www.buildingscience.com
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