EpiPHany Corner | The Natural Order of Sustainability

When you are in the process of designing and constructing a new building, or planning for the remodeling or retrofitting an existing building, the Natural Order of Sustainability is: Passive First - Active Second - and Renewables Last. A “passive” solution delivers desired performance naturally, as a function of design, and continues to deliver that performance over time with little or no intervention other than basic maintenance. When you design…



Central Coast Climate Collaborative (4C)

Passive House California is pleased to announce that we have joined the Central Coast Climate Collaborative (4C) in support of our aligned efforts to “Advance Equitable Climate Solutions”. 4C’s focus is on California’s central coast, where PHCA is engaged with several jurisdictions, and other entities related to environmentally responsible design and building. We are looking forward to positive synergy from our combined efforts. If you would like to know more…


The Ice Box Challenge Sydney has officially begun!

A big congratulations to APHA for all their hard work!   One box was designed and built to typical Australian building standards and the other to the Passive House Standard, both containing an equal amount of ice.   This edition of the Ice Box Challenge includes sensors and cameras built into the boxes, providing regular updates on the internal humidity, volume, temperature and more.   Find out more Previous Ice-Box…


EpiPHany Corner | A High-Performance Enclosure: The #1 Priority for Resiliency

Resiliency is the “ability to withstand and recover from difficult life events.” In the case of buildings, difficult life events include extreme heat or cold, wildfires, airborne pollutants (including smoke), and power outages. The #1 priority for achieving resiliency is a high-performance enclosure (envelope) The #1 priority for attaining a high-performance enclosure is air sealing Employing Passive House protocols is the #1 way of delivering an airtight enclosure The high-performing…


Passive Housed Durability – Condensation

When we think of Passive Houses, the first things that usually come to mind are airtightness (0.6 ACH50), above-average insulation levels, and whole-house ventilation. However, there are some additional subtleties to Passive House certification that are often overlooked. One of those subtleties that can be problematic is the Minimum Temperature Factor. This is a unitless value that indicates the likelihood that a location in the building has the potential to…


3C-REN | Certified Passive House Tradesperson Training with Emu Systems

3C-REN is considering offering a Certified Passive House Tradesperson training through the industry leading training provider Emu Systems. Before bringing this course to the Central Coast, 3C-REN is looking for interested individuals to ensure we can meet the minimum attendance. As of now this 5-day in-person course would be held sometime in 2022 and include: • Two-day classroom training • Two-day hands-on Passive Pod workshop • Half-day exam and optional…


Architecture at Zero Competition | 2021-21 Winners | Passive House BB receives Merit Award

Architecture at Zero is a design competition for decarbonization, equity and resilience, open to students and professionals worldwide. It serves to engage the fields of architecture, design, engineering and planning in the pursuit of sustainable design. The 2021-22 competition challenges entrants to develop affordable housing for farmworker families in Visalia, California, one of the world’s most productive farming regions. The 2021-22 Competition award announcement that took place on February 11, 2022. Click…


2022 Net Zero Conference in Los Angeles – Submit Abstract

Thank you for your interest in speaking at the 2022 Net Zero Conference in Los Angeles on September 14-15, 2022. We bring industry leaders together to respond to the climate crisis and inspire a net zero future for all people, now. We're providing synergistic zero carbon learning opportunities across industries. Overcoming the climate crisis is a defining part of our legacy. With so many of us recognizing the need to…


PHribbon | Whole Life Carbon Calculator

The PHN PHribbon allows Passive House designers to calculate total cradle-to-grave building carbon emissions, for buildings located in the US, within the Passive House Planning Package (PHPP) tool. By utilizing the PHPP and PHN PHribbon, building designers have an unparalleled ability to connect design and construction choices to carbon emissions outcomes. With the PHN PHribbon designers can optimize their building designs to address our climate emergency. As with the PHPP itself, all calculations in the PHN PHribbon are transparent and viewable. Find out more



EpiPHany Corner | The Logic of The MacLeamy Curve

In 2004, Patrick MacLeamy (CEO of HOK Architects) introduced the “Effort Curve”, now known as the MacLeamy Curve, to leverage technology and collaboration early in the design process for new buildings. Today, application of MacLeamy’s logic is critically important in achieving Passive House performance. A simple analogy: Imagine you were arranging a family vacation that included visits to several countries — and you wanted to arrive back home on time…