Process loads and their impact on PHPP calculations

A guiding goal of an energy modeler is to construct a realistic projection of the energy use of a building. When one is working on the energy model of a... Read More »

Passiv Science Air Tightness Protocol

Not long after I began working on large scale commercial Passivhaus projects it became evident that the 0.60 ACH50 air tightness requirement for Passivhaus certification was not appropriate for... Read More »
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Details for the Passivhaus Practitioner

Entering U Values of Mixed Assemblies in PHPP Have you ever been working in your R-Values tab and seen this message at the bottom of your assembly? The U-value... Read More »
The Seattle Bullitt Center, image by Joe Mabel, Wikimedia Commons

Adam Reviews the Bullitt Center from a Passivhaus point of View

Adam was recently a presenter at the 2013 Passivhaus North West Spring Conference. He was given the opportunity to review the construction of the greenest building in the US-... Read More »

Thermal Comfort in Passivhaus Buildings

An important founding concept of the Passivhaus standard is maintaining a high level of thermal comfort. Simply stated, the closer interior surface temperatures are to the interior ambient air... Read More »