In passive house construciton, a dedicated, on-site quality assurance champion in construction and quality assurance is the key person.
The role of a dedicated, on-site Passive House Quality Assurance Champion is to make sure that the building satisfies its airtightness target. The role is to also help ensure that the correct insulation system is installed properly. This means ensuring that:
- the interface between insulation products has a good butt joint
- the insulation is encapsulated between the air barrier and the wind barrier
- the wind barrier system is completed in accordance with the design intent.
Their role is also to:
- organise and arrange pressure tests
- arrange for timely tool box talks for all trades
- review the buildability of the air barrier, wind barrier and insulation systems – this means reviewing the sequencing of the build process and considering where challenges may arise before they become an obstacle
- undertake day to day site inspections of the work and instruct remediation as required
- ensure that only the specifi ed materials are used in the construction i.e. avoid ad hoc substitutes, without prior consultation and agreement with the designer.
Excerpt from “How to build a Passivhaus: Rules of thumb”, chapter by Mark Siddall, Passivhaus Trust, April 2015.