After an airtightness test, the comprehensive documentation serves to both verify the building envelope’s airtightness and offer valuable insights for necessary improvements. The primary test report outlines the methodology, detailing standards like AS/NZS ISO 9972:2015 or ASTM E779, and presents key metrics such as normalised air leakage rates and equivalent leakage areas. It also describes building preparation and testing conditions, noting closures, openings, and sealings, while identifying leakage locations under standards like PAS 2035. Recommendations may include ventilation system enhancements and compliance confirmation with specified airtightness targets and relevant building codes, supported by additional documents like design submission templates and contractor requirements.