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England · Statutory guidance

Ventilation: Approved Document F, Volume 1 — Dwellings

Building regulation guidance on ventilation for dwellings and other buildings.

Ventilation
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Source wording and page order preserved. Drawings and table layouts remain available in the original PDF.

O N L I N E V E R S I O N C Part 2b – Inspection of installation The commissioning engineer should complete this section before completing Part 3. 2b.1 Visual inspections – general (all systems) What is the total installed equivalent area of background ventilators in the dwelling? mm2 What is the total floor area of the dwelling? m2 Does the total installed equivalent ventilator area meet the standards detailed in Table 1.7 Yes No or paragraph 1.57(1), as appropriate? Have all background ventilators been left in the open position? Yes No Have the correct number and location of extract fans/terminals been installed to satisfy Yes No the standards in Table 1.1 or Table 1.2, as appropriate? Is the installation complete, with no obvious defects? Yes No Do all internal doors have enough undercut to allow air transfer between rooms as Yes No detailed in paragraph 1.25 (i.e. 10mm above the floor finish or 20mm above the floor surface)? Has all protection/packaging been removed (including from background ventilators), so Yes No that the system is fully functional? Are systems clean internally and externally? Yes No Has the entire system been installed to allow access for routine maintenance and to Yes No repair/replace components? 2b.2 Visual inspections – general (continuous mechanical extract ventilation and mechanical ventilation with heat recovery systems only) Have appropriate air terminal devices been installed to allow system balance? Yes No Have the heat recovery unit and all ductwork been effectively insulated and sealed for all Yes No heated and unheated spaces? Is the condensate connection complete and does the condensate drain to an appropriate Yes No location (mechanical ventilation with heat recovery only)? Are filters installed? Yes No For ducted systems, has the ductwork been installed so that air resistance and leakage is Yes No kept to a minimum? 2b.3 Other inspections – general (all systems) At initial start-up, was there any abnormal sound or vibration, or unusual smell? Yes No During continuous operation, was there any excessive noise? Yes No NOTE: 1. All references to tables and paragraphs are to Approved Document F, Volume 1: Dwellings. 45 Building Regulations 2010 Approved Document F Volume 1, 2021 edition O N L I N E V E R S I O N

Edition and local adoption determine which requirements apply. Use the publisher’s document for the complete clauses, diagrams and amendments.