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 | Aug 29, 2017
Hidden opportunities emerge from construction industry challenges
JLL’s latest construction report shows stability ahead with tech and innovation leading the way.
Market Data | Aug 28, 2017
U.S. hotel construction pipeline is up 7% year-over-year
For the economy, the rate of growth may be low but it’s running on all cylinders.
Market Data | Aug 23, 2017
Architecture Billings Index growth moderates
“The July figures show the continuation of healthy trends in the construction sector of our economy,” said AIA Chief Economist, Kermit Baker.
Architects | Aug 21, 2017
AIA: Architectural salaries exceed gains in the broader economy
AIA’s latest compensation report finds average compensation for staff positions up 2.8% from early 2015.
Market Data | Aug 20, 2017
Some suburban office markets are holding their own against corporate exodus to cities
An analysis of mortgage-backed loans suggests that demand remains relatively steady.
Market Data | Aug 17, 2017
Marcum Commercial Construction Index reports second quarter spending increase in commercial and office construction
Spending in all 12 of the remaining nonresidential construction subsectors retreated on both an annualized and monthly basis.
Industry Research | Aug 11, 2017
NCARB releases latest data on architectural education, licensure, and diversity
On average, becoming an architect takes 12.5 years—from the time a student enrolls in school to the moment they receive a license.
Market Data | Aug 4, 2017
U.S. grand total construction starts growth projection revised slightly downward
ConstructConnect’s quarterly report shows courthouses and sports stadiums to end 2017 with a flourish.
Market Data | Aug 2, 2017
Nonresidential Construction Spending falls in June, driven by public sector
June’s weak construction spending report can be largely attributed to the public sector.
Market Data | Jul 31, 2017
U.S. economic growth accelerates in second quarter; Nonresidential fixed investment maintains momentum
Nonresidential fixed investment, a category of GDP embodying nonresidential construction activity, expanded at a 5.2% seasonally adjusted annual rate.
