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 | Mar 18, 2021
Commercial Construction Contractors’ Outlook lifts on rising revenue expectations
Concerns about finding skilled workers, material costs, and steel tariffs linger.
Market Data | Mar 16, 2021
Construction employment in January lags pre-pandemic mark in 42 states
Canceled projects, supply-chain woes threaten future jobs.
Market Data | Mar 15, 2021
Rising materials prices and supply chain disruptions are hurting many construction firms
The same firms are already struggling to cope with pandemic impacts.
Market Data | Mar 11, 2021
Soaring materials costs, supply-chain problems, and project cancellations continue to impact construction industry
Costs and delayed deliveries of materials, parts, and supplies are vexing many contractors.
Market Data | Mar 8, 2021
Construction employment declines by 61,000 in February
Association officials urge congress and Biden administration to focus on new infrastructure funding.
Market Data | Mar 2, 2021
Construction spending rises in January as private nonresidential sector stages rare gain
Private nonresidential market shrinks 10% since January 2020 with declines in all 11 segments.
Market Data | Feb 24, 2021
2021 won’t be a growth year for construction spending, says latest JLL forecast
Predicts second-half improvement toward normalization next year.
Market Data | Feb 23, 2021
Architectural billings continue to contract in 2021
AIA’s Architecture Billings Index (ABI) score for January was 44.9 compared to 42.3 in December.
Healthcare Facilities | Feb 18, 2021
The Weekly show, Feb 18, 2021: What patients want from healthcare facilities, and Post-COVID retail trends
This week on The Weekly show, BD+C editors speak with AEC industry leaders from JLL and Landini Associates about what patients want from healthcare facilities, based on JLL's recent survey of 4,015 patients, and making online sales work for a retail sector recovery.
Market Data | Feb 17, 2021
Soaring prices and delivery delays for lumber and steel squeeze finances for construction firms already hit by pandemic
Association officials call for removing tariffs on key materials to provide immediate relief for hard-hit contractors and exploring ways to expand long-term capacity for steel, lumber and other materials,
