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 6, 2020
Construction industry adds 158,000 workers in June but infrastructure jobs decline
Gains in June are concentrated in homebuilding as state and local governments postpone or cancel roads and other projects in face of looming budget deficits.
Market Data | Jul 6, 2020
5 must reads for the AEC industry today: July 6, 2020
Demand growth for mass timber components and office demand has increased as workers return.
Market Data | Jul 2, 2020
Fall in US construction spending in May shows weakness of country’s construction industry, says GlobalData
Dariana Tani, Economist at GlobalData, a leading data and analytics company, offers her view on the situation
Market Data | Jul 2, 2020
6 must reads for the AEC industry today: July 2, 2020
Construction spending declines 2.1% in May and how physical spaces may adapt to a post-COVID world.
Market Data | Jul 1, 2020
Construction spending declines 2.1% in May as drop in private work outweighs public pickup
Federal infrastructure measure can help offset private-sector demand that is likely to remain below pre-coronavirus levels amid economic uncertainty.
Market Data | Jul 1, 2020
7 must reads for the AEC industry today: July 1, 2020
Facebook to build $800 million data center and 329 metro areas added construction jobs in May.
Market Data | Jun 30, 2020
AIA releases strategies and illustrations for reducing risk of COVID-19 in senior living communities
Resources were developed as part of AIA’s “Reopening America: Strategies for Safer Buildings” initiative.
Market Data | Jun 30, 2020
329 metro areas added construction jobs in May
Seattle-Bellevue-Everett, Wash. added the most construction jobs (28,600, 44%) in May.
Market Data | Jun 29, 2020
6 must reads for the AEC industry today: June 29, 2020
HQ tower features gardens on every floor and the head of Hilton talks about how his business will survive.
Market Data | Jun 26, 2020
5 must reads for the AEC industry today: June 26, 2020
Restoration of 1930s El Paso hotel completes and Arc offers tools, analytics for safe workplace re-entry.
