Section 2: The Requirements

2.1 This Approved Document, which takes effect on 1 October 2010, deals with the requirements of Part F: Ventilation of Schedule 1 to, and regulations 39, 42 and 44 (in so far as it relates to fixed systems for mechanical ventilation) of, the Building Regulations, as amended. It also deals with regulations 20(1) and 20(6) (in so far as it relates to fixed systems for mechanical ventilation) of the Approved Inspectors Regulations, as amended.

  1. Requirement and Limits on Application
    1. Limitation on requirements

      Requirement and Limits on Application

      Requirement
      Means of ventilation F1(1). There shall be adequate means of ventilation provided for people in the building. (2). Fixed systems for mechanical ventilation and any associated controls must be commissioned by testing and adjusting as necessary to secure that the objective referred to in sub-paragraph (1) is met.
      Limits on Application
      Requirement F1 does not apply to a building or space within a building:

      a. into which people do not normally go; or

      b. which is used solely for storage; or

      c. which is a garage used solely in connection with a single dwelling.

      REQUIREMENTs in the Building Regulations 2010
      Information about ventilation 39.—(1) This regulation applies where Part F1(1) of Schedule 1 imposes a requirement in relation to building work. (2) The person carrying out the work shall not later than five days after the work has been completed give sufficient information to the owner about the building’s ventilation system and its maintenance requirements so that the ventilation system can be operated in such a manner as to provide adequate means of ventilation. Mechanical ventilation air flow rate testing 42.—(1) This regulation applies where paragraph F1(1) of Schedule 1 imposes a requirement in relation to the creation of a new dwelling by building work. (2) The person carrying out the work shall, for the purpose of ensuring compliance with paragraph F1(1) of Schedule 1—

      a. ensure that testing of the mechanical ventilation air flow rate is carried out in accordance with a procedure approved by the Secretary of State; and

      b. give notice of the results of the testing to the local authority.

      (3) The notice referred to in paragraph (2)(b) shall—

      a. record the results and the data upon which they are based in a manner approved by the Secretary of State; and

      b. be given to the local authority not later than five days after the final test is carried out.

      Commissioning 44.—(1) This regulation applies to building work in relation to which paragraph F1(2) of Schedule 1 imposes a requirement, but does not apply to the provision or extension of any fixed system for mechanical ventilation or any associated controls where testing and adjustment is not possible. (2) This regulation applies to building work in relation to which paragraph L1(b) of Schedule 1 imposes a requirement, but does not apply to the provision or extension of any fixed building service where testing and adjustment is not possible or would not affect the energy efficiency of that fixed building services. (3) Where this regulation applies the person carrying out the work shall, for the purpose of complying with paragraph F1(2) or L1(b) of Schedule 1, give to the local authority a notice confirming that the fixed building services have been commissioned in accordance with a procedure approved by the Secretary of State. (4) The notice shall be given to the local authority –

      a. not later than the date on which the notice required by regulation 16(4) is required to be given; or

      b. where the regulation does not apply, not more than 30 days after the completion of the work.

      Requirements in the Building (Approved Inspectors) Regulations 2010. Application of Provisions of the Principle Regulations. 20.—(1) Regulation 20 (provisions applicable to self-certification schemes), 27 CO emmission rate calculations), 29 (energy performance certificates), 37 (wholesome water consumption calculation), 41 (sound insulation testing), 42 (mechanical ventilation air flow rate testing), 43 (pressure testing) and 44 (commissioning) of the Principal Regulations apply in relation to building work which is the subject of an initial notice as if references to the local authority were references to the approved inspector. (6) Regulation 44 of the Principal Regulations applies in relation to building work which is the subject of an initial notice as if for paragraph (4) there were substituted—

      “(4)   The notice shall be given to the approved inspector—

      a. subject to sub-paragraphs (b) and (c), not later than five days after completion of the work to which the initial notice relates;

      b. where regulation 17 of the Building (Approved Inspectors ) Regulations 2010 applies, not later than the date on which the initial notice ceases to be in force or, if earlier, the end of the period referred to in sub-paragraph (a);

      c. where regulation 20 applies by virtue of regulation 20 of the Building (Approved Inspectors ) Regulations 2010, not later than the date on which the notice or certificate required by that regulation must be given.”.

      Limitation on requirements

      2.2 In accordance with regulation 8 of the Building Regulations, the requirements in Parts A to D, F to K and N and P (except for paragraphs G2, H2 and J7) of Schedule 1 to the Building Regulations do not require anything to be done except for the purpose of securing reasonable standards of health and safety for persons in or about buildings (and any others who may be affected by buildings or matters connected with buildings). 2.3 Paragraph G2 is excluded as it deals with water efficiency and paragraphs H2 and J7 are excluded from regulation 8 because they deal directly with prevention of the contamination of water. Parts E and M (which deal, respectively, with resistance to the passage of sound and access to and use of buildings) are excluded from regulation 8 because they address the welfare and convenience of building users. Part L is excluded from regulation 8 because it addresses the conservation of fuel and power.

      • Diagram 1 Provisions for background ventilation Diagram 1 Provisions for background ventilation
      • Diagram 2a Ventilation systems Diagram 2a Ventilation systems
      • Diagram 2b Single sided ventilation Diagram 2b Single sided ventilation
      • Diagram 3 Two habitable rooms treated as a single room for ventilation purposes Diagram 3 Two habitable rooms treated as a single room for ventilation purposes
      • Diagram 4  A habitable room ventilated through a conservatory Diagram 4 A habitable room ventilated through a conservatory

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        Diagram 4  Spaces for access Diagram 4 Spaces for access
      • Window dimensions Window dimensions
      • Diagram C1 Ground floor flat plan Diagram C1 Ground floor flat plan
      • Diagram C2 Semi-detached ground floor plan example Diagram C2 Semi-detached ground floor plan example
      • Diagram C3 Semi-detached house first floor plan example Diagram C3 Semi-detached house first floor plan example
      • ExampleC1 Background ventilators and intermittent extract fans (this is based on Table 5.2a) Example C1 Background ventilators and intermittent extract fans (this is based on Table 5.2a)
      • Example C2  Passive stack ventilation (this is based on Table 5.2b) Example C2 Passive stack ventilation (this is based on Table 5.2b)
      • Example C3  Continuous mechanical extract (this is based on Table 5.2c) Example C3 Continuous mechanical extract (this is based on Table 5.2c)
      • Example C4 Continuous mechanical supply and extract with heat recovery (this is based on Table 5.2d) Example C4 Continuous mechanical supply and extract with heat recovery (this is based on Table 5.2d)
      • Example C5 Background ventilators and intermittent extract fans(this is based on Table 5.2a) Example C5 Background ventilators and intermittent extract fans(this is based on Table 5.2a)
      • Example C6 Passive stack ventilation (this is based on Table 5.2b) Example C6 Passive stack ventilation (this is based on Table 5.2b)
      • Example C7  Continuous mechanical extract (this is based on Table 5.2c) Example C7 Continuous mechanical extract (this is based on Table 5.2c)
      • Example C8 Continuous mechanical supply and extract with heat recovery (this is based on Table 5.2d) Example C8 Continuous mechanical supply and extract with heat recovery (this is based on Table 5.2d)
      • Table 5.1a Extract ventilation rates Table 5.1a Extract ventilation rates
      • ]Table 5.1b Whole dwelling ventilation rates Table 5.1b Whole dwelling ventilation rates

      • Table 5.2a System 1- background ventilators and intermittent extract fans (for additional Information see Table 5.3 and worked examples c1 and C5 in Appendix C) Table 5.2a System 1- background ventilators and intermittent extract fans (for additional Information see Table 5.3 and worked examples c1 and C5 in Appendix C)
      • Table 5.2a System 1- background ventilators and intermittent extract fans (for additional Information see Table 5.3 and worked examples c1 and C5 in Appendix C) Table 5.2a System 1- background ventilators and intermittent extract fans (for additional Information see Table 5.3 and worked examples c1 and C5 in Appendix C)
      • Table 5.2b System 2- Passive Stack Ventilation (PSV) (for additional information see table 5.3 and  worked examples C2 and C6 in Appendix C) continued Table 5.2b System 2- Passive Stack Ventilation (PSV) (for additional information see table 5.3 and worked examples C2 and C6 in Appendix C) continued
      • Table 5.2b System 2- Passive Stack Ventilation (PSV) (for additional information see table 5.3 and  worked examples C2 and C6 in Appendix C) continued Table 5.2b System 2- Passive Stack Ventilation (PSV) (for additional information see table 5.3 and worked examples C2 and C6 in Appendix C) continued
      • System 2- Passive Stack Ventilation (PSV) (for additional information see table 5.3 and  worked examples C2 and C6 in Appendix C) continued 2 Table 5.2b System 2- Passive Stack Ventilation (PSV) (for additional information see table 5.3 and worked examples C2 and C6 in Appendix C) continued 2
      • Table 5.2c System 3- Continuous mechanical extract (MEV)(for additional information see Table 5.3 and worked examples C3 and C7 in Appendix C) Table 5.2c System 3- Continuous mechanical extract (MEV)(for additional information see Table 5.3 and worked examples C3 and C7 in Appendix C)
      • Table 5.2c System 3- Continuous mechanical extract (MEV)(for additional information see Table 5.3 and worked examples C3 and C7 in Appendix C) Table 5.2c System 3- Continuous mechanical extract (MEV)(for additional information see Table 5.3 and worked examples C3 and C7 in Appendix C) continued
      • Table 5.2d System 4- Continuous mechanical supply and extract with heat recover (MVHR)(for additional information see Table 5.3 and worked examples C4 and C8 in Appendix C) Table 5.2d System 4- Continuous mechanical supply and extract with heat recover (MVHR)(for additional information see Table 5.3 and worked examples C4 and C8 in Appendix C)
      • Table 5.2d System 4- Continuous mechanical supply and extract with heat recover (MVHR)(for additional information see Table 5.3 and worked examples C4 and C8 in Appendix C) continued Table 5.2d System 4- Continuous mechanical supply and extract with heat recover (MVHR)(for additional information see Table 5.3 and worked examples C4 and C8 in Appendix C) continued

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<em>Table 5.3 Performance Test Methods Table 5.3 Performance Test Methods
      • Table 6.1a Extract ventilation rates Table 6.1a Extract ventilation rates
      • Table 6.1b Whole building evntilation rate for air supply to offices Table 6.1b Whole building evntilation rate for air supply to offices
      • Table 6.2a ventilation for offices with natural air supply- ventilation purposes Table 6.2a ventilation for offices with natural air supply- ventilation purposes
      • Table 6.2b Ventilation for offices with natural air supply- location of ventilators in rooms Table 6.2b Ventilation for offices with natural air supply- location of ventilators in rooms
      • [caption id="attachment_7898" align="alignnone" width="943"]Table 6.2c Ventilation for offices with natural air supply- controls for ventilators in rooms Table 6.2c Ventilation for offices with natural air supply- controls for ventilators in rooms[/caption]

      • Table 6.3 Ventilation of other buildings and spaces Table 6.3 Ventilation of other buildings and spaces
      • Table 6.3 Ventilation of other buildings and spaces Table 6.3 Ventilation of other buildings and spaces
      • Table A 1 Surface Water Activity Table A 1 Surface Water Activity
      • Table A2 Indoor air relative humidity Table A2 Indoor air relative humidity
      • Table D1 Guidance on ventilation intake placement for minimising ingress of pollutants Table D1 Guidance on ventilation intake placement for minimising ingress of pollutants