The latest Passive House Institute U.S. (PHIUS) standard, expected to be released early next year, contains a prescriptive path option that could reduce the cost of certification.
Passive House 2021+ is expected to include the ability to achieve certification without a requirement for a Passive House consultant and the attendant modeling that goes with it. The Prescriptive Design Review checklist is four pages plus footnotes. It is similar to ENERGY STAR rater checklists.
The new Prescriptive Path provides an online calculator that requires a few entries to determine minimum R-values and maximum window U factor. These provisions include a window U factor maximum of .25, R-31 for cantilevered floors, R-61 for roof or ceiling insulation, and R-20 for slabs and floors over unconditioned space. Alternatively, one can provide a calculation that meets the same overall UA as the prescriptive requirements. This allows for tradeoffs.
Related Stories
Market Data | Jul 27, 2020
6 must reads for the AEC industry today: July 27, 2020
Customized labs give universities a recruiting edge and the U.S. construction pipeline remains robust through the first half of 2020.
Market Data | Jul 27, 2020
The U.S. construction pipeline remains robust through the first half of 2020, despite pandemic
Projects currently under construction stand at 1,771 projects/235,467 rooms, up 3% and 1% respectively, YOY.
Market Data | Jul 24, 2020
5 must reads for the AEC industry today: July 24, 2020
North Carolina will stop relying on FEMA flood mapping and Cal Poly Pomona's newest project.
Market Data | Jul 23, 2020
New LEED guidance from USGBC helps cities and communities expand resilience efforts in response to the COVID-19 pandemic
Credits integrate public health and social equity with sustainability planning.
Market Data | Jul 23, 2020
6 must reads for the AEC industry today: July 23, 2020
Skanska selects Pickard Chilton to design new ofice tower and days grow long at nursing homes as virus lockdowns drag on.
Market Data | Jul 22, 2020
6 must reads for the AEC industry today: July 22, 2020
Phase one of Toronto's The Orbit detailed and architecture billings remains in negative territory.
Market Data | Jul 21, 2020
Nonresidential building spending to decline through 2021
The commercial building sector is expected to be the hardest hit.
Market Data | Jul 21, 2020
7 must reads for the AEC industry today: July 21, 2020
Abandoned high-rise becomes mixed-use luxury apartments and researchers are developing anti-coronavirus tech for buildings.
Market Data | Jul 20, 2020
Construction employment rises from May to June in 31 states, slips in 18
Recent data from Procore on jobsite workers’ hours indicates employment may have leveled off.
Market Data | Jul 20, 2020
6 must reads for the AEC industry today: July 20, 2020
Never waste a crisis and robotic parking systems help developers optimize parking amenities.
