Certified Passive House Designer / Consultant case studies
Certified Passive House Designer / Consultant · Put your knowledge to work in context.
The Certified Passive House Designer/Consultant credential is issued by the Passive House Institute (PHI) and signals that you can plan and verify buildings to the Passive House standard. Designers typically come from architecture or engineering backgrounds and take the full design exam; consultants often work on component specification, quality assurance and certification support. The Certified Passive House Designer / Consultant case studies are 5 cases and about 3,187 words.
1When Heating Demand Passes but PER and Summer Comfort Fail
A 1,200 m² TFA, 14-dwelling apartment building is modelled in PHPP 10 by a designer who reports 'Passive House achieved' because the heating demand is 14.2 kWh/(m²a) and the heating load is 9.5 W/m². The airtightness test result is 0.55 h⁻¹.
672 words, about 3 min2Balcony Thermal Bridge: Default Ψ Versus a Thermal Break
On a 12-unit passive-house project, 12 concrete balcony slabs each 2.5 m wide penetrate a 200 mm mineral-wool insulated timber-frame wall. The structural engineer has drawn the slab continuous through the insulation; the architect proposes to accept the PHPP default Ψ = 0.60 W/(mK).
634 words, about 3 min3Solar-Control Glass Versus External Shading in a South Living Room
A south-facing living room in a 150 m² passive-house dwelling has 9 m² of triple glazing with U g = 0.60 W/(m²K), U f = 0.95 W/(m²K), g = 0.52, and an installed Ψ install of 0.03 W/(mK). The room is 32 m² and has no external shading.
649 words, about 3 min4Ventilation Commissioning: Low Airflow, Poor Temperature Ratio and a Kitchen Hood
A 6-unit passive-house apartment building has a central balanced ventilation system with a claimed heat-recovery efficiency of 80% and specific fan power of 0.35 Wh/m³. At commissioning, total supply airflow is 780 m³/h against a design of 900 m³/h; one unit has 95 m³/h instead of 150 m³/h.
646 words, about 3 min5Certification Under Deadline Pressure: Failed Blower Door and Missing Commissioning
Three weeks before certification of an 8-unit passive-house project, the first blower-door test gives n50 = 0.85 h⁻¹. The contractor says the result is close enough and proposes to seal obvious gaps after the test without a retest.
586 words, about 3 min