Ventilation: Approved Document F, Volume 1 — Dwellings

D O N L I N E V E R S I O N Table D1 Checklist for ventilation provision in existing dwellings Natural ventilation(1) What is the total equivalent area of background ventilators currently in dwelling? mm2 Does each habitable room satisfy the minimum equivalent area standards in Table 1.7(2)? Yes No Have all background ventilators been left in the open position? Yes No Are fans and background ventilators in the same room at least 0.5m apart? Yes No Are there working intermittent extract fans in all wet rooms? Yes No Is there the correct number of intermittent extract fans to satisfy the standards in Table 1.1? Yes No Does the location of fans satisfy the standards in paragraph 1.20? Yes No Do all automatic controls have a manual override? Yes No Does each room have a system for purge ventilation (e.g. windows)? Yes No Do the openings in the rooms satisfy the minimum opening area standards in Table 1.4? Yes No Do all internal doors have sufficient undercut to allow air transfer between rooms as detailed Yes No in paragraph 1.25 (i.e. 10mm above the floor finish or 20mm above the floor surface)? Continuous mechanical extract ventilation(1) Does the system have a central extract fan, individual room extract fans, or both? Yes No Does the total combined continuous rate of mechanical extract ventilation satisfy the Yes No standards in Table 1.3? Does each minimum mechanical extract ventilation high rate satisfy the standards in Table 1.2? Yes No Is it certain that there are no background ventilators in wet rooms? Yes No Do all habitable rooms have a minimum equivalent area of 5000mm2? Yes No Does each room have a system for purge ventilation (e.g. windows)? Yes No Do the openings in the rooms satisfy the minimum opening area standards in Table 1.4? Yes No Do all internal doors have sufficient undercut to allow air transfer between rooms as detailed Yes No in paragraph 1.25 (i.e. 10mm above the floor finish or 20mm above the floor surface)? Mechanical ventilation with heat recovery(1) Does each habitable room have mechanical supply ventilation? Yes No Does the total continuous rate of mechanical ventilation with heat recovery satisfy the Yes No standards in Table 1.3? Does each minimum mechanical extract ventilation high rate satisfy the standards in Table 1.2? Yes No Have all background ventilators been removed or sealed shut? Yes No Does each room have a system for purge ventilation (e.g. windows)? Yes No Do the openings in the rooms satisfy the minimum opening area standards in Table 1.4? Yes No Do all internal doors have sufficient undercut to allow air transfer between rooms as detailed Yes No in paragraph 1.25 (i.e. 10mm above the floor finish or 20mm above the floor surface)? NOTES: 1. Make a visual check for mould or condensation. If either are present, install additional ventilation provisions or seek specialist advice. 2. All references to tables and paragraphs are to Approved Document F, Volume 1: Dwellings. 48 Approved Document F Volume 1, 2021 edition Building Regulations 2010 O N L I N E V E R S I O N