Passive House Certification Worldwide

Passive House stands for healthy, comfortable living and impressive energy efficiency, regardless of the local climate. Over the last several years, Passive House has rapidly increased in popularity, with over three million square meters total floor area certified worldwide (the graph shows the stats as of June, 2021). 1 Square Meter = 10.76 Square Feet Source: International Passive House Association


Passive House California at COP26

It should not be a surprise that the International Passive House Association (iPHA) was well represented at the recent COP26 in Glasgow. Four years earlier at the 2017 North American Passive House Network conference, UN Deputy Secretary-General Amina J. Mohammad described Passive House as “a model for the developing… and the developed world.” (Originally published on the EcoReport 2017) iPHA was involved in COP26 in several ways, including a tour…


PHPP vs. Title 24 – Thermal Bridging

Thermal bridging is a complicated topic for two reasons: it has multiple aspects, and it often requires complex calculations. Let’s look at a simple case first—exterior wall framing. An exterior wall has multiple layers. For instance, from outside to inside, it may have: Stucco or some type of siding An air gap or rain screen designed to help drain bulk water A bulk water barrier Sheathing, typically ½” plywood or…



$1,000 Certified Passive House Designer/Consultant | Training Scholarship

Passive House California (PHCA) is offering discounted training to Southern California Edison (SCE) customers! If you are within the Southern California Edison territory, please consider applying for a $1,000 dollar discount *) on the Certified Passive House Designer/ Consultant Training. Applicants must be in the SCE regional territory and demonstrate being a qualified professional focused on designing multifamily market-rate and affordable housing projects. Only 5x spots are available so act quickly. This is your best way…


30 years old ˗ more relevant than ever!

Darmstadt/Wuppertal, Germany. Passive House is celebrating its 30th birthday – and is more relevant than ever before. The 25th International Passive House Conference demonstrated how important it is to implement climate protection in buildings on a large scale. The Passive House Institute moderated the anniversary conference live in the Historic Town Hall of Wuppertal, for the participants it took place online. The research institute emphasised the key role that energy…


PHPP vs. Title 24: Shading Analysis

One critical aspect of building performance is shading. With a properly designed building shell, the amount of solar radiation hitting the building’s opaque surfaces usually aren’t a problem. However, the windows are the weakest link in the shell. The presence or absence of shading can have a huge impact on cooling and heating loads, even with excellent quality windows. You can control radiation intrusion to a certain extent by tuning…


Meet the iPHA Affiliates

The International Passive House Association (iPHA) has created a new blog series aiming to introduce our international partner associations and the great work they are doing to the wider, global audience. The International Passive House Association (iPHA) was founded in 2010 to support the growing global Passive House community, disseminate information on the Passive House Standard and foster a greater public understanding of its significance. iPHA partners with independent Passive…


Highly Efficient and Very Impressive | Passive House Award 2021

Darmstadt, Germany. The winners of the Passive House Award 2021 will be announced this Friday. The jury of the international architecture competition has already selected 20 finalists. Within the framework of the 25th International Passive House Conference, the Passive House Institute will present a total of 14 awards to the architects of the highly efficient and impressive buildings. The awards ceremony will take place at the Historic City Hall in the…


PHPP vs. Title 24 – Windows

The most thermally-inefficient parts of a high-performance residential building are the windows. The insulating values are usually in the range of R-3/inch (typical) to R-10/inch (very high-quality). When compared to typical wall insulation of R-21/inch, thermal movement is going to take the path of least resistance—the windows. Even more importantly, if you want to realistically understand how a building component performs, you need to accurately evaluate it. Passive House windows…


Press Release | Passive House Meets Social Goals

Darmstadt, Germany. The United Nations set 17 Sustainable Development Goals to be reached by 2030. Envisioned as a ‘‘blueprint to achieve a better and a more sustainable future for all’’, the goals cover a wide array of fields and topics. With a new article and accompanying infographic, the International Passive House Association illustrates how highly energy efficient buildings built to the Passive House standard play a direct role in achieving…