Certified Passive House Designer / Consultant study plan
Certified Passive House Designer / Consultant · Give each week a clear focus.
8 weeks · About 7 hours per week
Building envelope: thermal insulation, thermal bridges, airtightness and construction details & Passive House principles, certification criteria and the PHPP
Reproduce from memory the Passive House certification limits (heating demand, primary energy, airtightness, overheating frequency) and state which apply to retrofit vs new build
Explain the three heat-transfer mechanisms through the envelope and calculate U-values for a homogeneous layer stack and for a layer with a repeating metal fastener
Sketch five typical thermal-bridge details (balcony slab, window reveal, floor slab at foundation, roof parapet, partition junction) and annotate the insulation continuity line
Quantify the difference between a point thermal bridge and a linear thermal bridge in PHPP input terms and identify which psi-values dominate a typical detached house
Set up a personal reference sheet of certification criteria and U-value reference values for your climate zone
Your checkpoint
A one-page annotated detail sheet with five hand-drawn junction sketches, each with the insulation line, calculated or sourced psi-value and a note on the dominant heat-loss path
Building envelope: thermal insulation, thermal bridges, airtightness and construction details & Windows, doors and solar control: glazing, frames, installation and shading
Design an airtightness concept that names the airtight layer on every building element and shows how it is carried across each junction
Interpret a blower-door result: convert n50 to the PHPP-relevant infiltration rate and explain which leak locations explain a given n50 value
Compare frame construction types (timber, aluminium with thermal break, PVC, composite) by frame U-value and by installation thermal-bridge penalty
Select glazing for a given orientation using g-value, Ug and solar-control trade-offs, and justify the choice for south vs west facades
Detail a window installation that minimises the installation psi-value, including the sill, the reveal and the connection to the airtight layer
Your checkpoint
A window schedule for a hypothetical project: at least six windows with orientation, frame type, Ug, g-value, installation psi-value and a one-sentence justification each
Windows, doors and solar control: glazing, frames, installation and shading & Ventilation and indoor air quality: ventilation concepts, heat recovery, duct design and summer comfort
Calculate the effect of external movable shading, overhang geometry and fixed fins on summer solar gains for a south and a west window
Size a ventilation system for a defined dwelling: derive supply and extract air volumes from occupancy and from the minimum hygienic air-change rate
Explain heat-recovery efficiency, frost protection strategy and the difference between a central and a decentralised unit with heat recovery
Lay out a duct network that keeps pressure drop low: justify duct routing, silencer placement and the position of the unit inside or outside the thermal envelope
Identify the indoor-air-quality parameters that Passive House certification checks and how a ventilation concept addresses humidity, CO2 and pollutants
Your checkpoint
A ventilation concept for a three-bedroom dwelling: air-volume table per room, unit specification with heat-recovery efficiency, duct routing sketch and a shading calculation for the two most exposed windows
Heating, cooling, domestic hot water and renewables: load calculation, distribution and generation & Energy balance, PHPP calculations and verification: heating demand, primary energy, summertime and economics
Calculate the design heating load using the PHPP method and explain why the peak load, not the annual demand, sizes the generator
Size the domestic hot water system for a defined occupancy and compare storage losses for an internal vs external cylinder
Compare heat generators (air-source heat pump, ground-source heat pump, district heat, pellet boiler) on primary-energy factor, seasonal performance and suitability for a low-load house
Explain how the primary-energy renewable (PER) factor changes the choice of generator and which factors you must look up rather than assume
Work through a full PHPP verification: enter climate, areas, U-values, thermal bridges, ventilation and gains, then read heating demand, primary energy and overheating frequency
Your checkpoint
A completed simplified PHPP-style calculation for one reference dwelling, plus a generator comparison table showing primary energy and a recommendation with reasoning
Energy balance, PHPP calculations and verification: heating demand, primary energy, summertime and economics & Passive House principles, certification criteria and the PHPP
Run a sensitivity analysis: change insulation thickness, window quality and airtightness one at a time and record the effect on heating demand
Distinguish useful solar gains from overheating risk and use the summer-verification outputs to decide whether shading or night ventilation is the better fix
Explain the difference between heating demand, heating load and delivered energy, and where each appears in certification
Identify the most common PHPP input errors that cause a failed verification and describe how each is caught in review
Reconcile a certification result against the economics: compute simple payback of an envelope upgrade versus a heat-pump upgrade
Your checkpoint
A sensitivity table with at least six parameter variations, the resulting heating demand and overheating frequency for each, and a two-paragraph conclusion on which measures give the most demand reduction per unit cost
Quality assurance, construction supervision, commissioning and certification process & Building envelope: thermal insulation, thermal bridges, airtightness and construction details
Write a commissioning sequence for the ventilation unit covering air-volume measurement, filter check, frost-protection test and handover documentation
Build an inspection checklist that verifies the airtight layer at the stages when it is still visible (pre-cladding, pre-plasterboard)
Describe the certification process end to end: documentation package, verifier review, on-site checks and the conditions attached to a certificate
Explain how construction supervision catches thermal-bridge and airtightness defects, and what evidence a certifier expects from site photographs
Plan the blower-door test: timing, preparation, which penetrations are temporarily sealed and how results are documented
Your checkpoint
A site quality-assurance pack: airtightness inspection checklist, ventilation commissioning protocol and a blower-door test plan with pass/fail criteria
Passive House principles, certification criteria and the PHPP & Energy balance, PHPP calculations and verification: heating demand, primary energy, summertime and economics & Quality assurance, construction supervision, commissioning and certification process
Review all seven domains against a self-written syllabus and flag the three weakest areas with specific gaps
Re-derive the certification criteria and the PHPP verification logic without notes, then check against your reference sheet
Practise interpreting a written project description and deciding which certification class it would achieve
Explain the roles of designer, certifier and site supervisor in a way you could present to a client in two minutes
Revisit the five thermal-bridge sketches from week 1 and correct any errors you now spot
Your checkpoint
A gap analysis listing every domain with a confidence rating, the three weakest topics with a written explanation of each, and a corrected version of the week-1 detail sheet
Passive House principles, certification criteria and the PHPP & Building envelope: thermal insulation, thermal bridges, airtightness and construction details & Windows, doors and solar control: glazing, frames, installation and shading & Ventilation and indoor air quality: ventilation concepts, heat recovery, duct design and summer comfort & Heating, cooling, domestic hot water and renewables: load calculation, distribution and generation & Energy balance, PHPP calculations and verification: heating demand, primary energy, summertime and economics & Quality assurance, construction supervision, commissioning and certification process
Complete two full-length timed practice sets under exam conditions and score them by domain
For every wrong answer, write the correct reasoning in one sentence and link it to the relevant PHPP input or construction detail
Drill the numeric skills that appear most often: U-value, psi-value penalty, ventilation air volumes, heating load and primary energy
Rehearse explaining a construction detail and a PHPP result aloud, as you would in a scenario-based question
Finalise a one-page formula and criteria sheet you can review in the last days before the exam
Your checkpoint
Two scored practice sets with a written error log by domain, plus a final one-page formula and certification-criteria sheet
Milestones
Week 2: Can draw and explain five envelope junctions with psi-values from memory, and correctly convert an n50 result into an infiltration input without notes
Week 4: Can complete a simplified PHPP-style verification end to end and defend the chosen heat generator on primary-energy grounds
Week 6: Can produce a site QA pack that a certifier would accept: airtightness checklist, commissioning protocol and blower-door plan
Week 8: Scores at least 75 percent on two timed practice sets, with no domain below 60 percent and every error logged with corrected reasoning