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The Building Regulations 2010

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Materials and workmanshipE

This section has no associated Explanatory Memorandum

7.—[F1(1)] Building work shall be carried out—

(a)with adequate and proper materials which—

(i)are appropriate for the circumstances in which they are used,

(ii)are adequately mixed or prepared, and

(iii)are applied, used or fixed so as adequately to perform the functions for which they are designed; and

(b)in a workmanlike manner.

[F2(1A) Building work shall be carried out so that relevant metal composite material does not become part of an external wall, or specified attachment, of any building.]

[F3[F4(2) Subject to paragraph (3), building work shall be carried out so that materials which become part of an external wall, or specified attachment, of a relevant building are of European Classification A2-s1, d0 or A1 (classified in accordance with the reaction to fire classification).]

(3)  Paragraph (2) does not apply to—

(a)cavity trays when used between two leaves of masonry;

(b)any part of a roof (other than any part of a roof which falls within paragraph (iv) of regulation 2(6)) if that part is connected to an external wall;

(c)door frames and doors;

(d)electrical installations;

[F5(da)fibre optic cables;]

(e)insulation and water proofing materials used below ground level [F6or up to 300mm above that level];

(f)intumescent and fire stopping materials where the inclusion of the materials is necessary to meet the requirements of Part B of Schedule 1;

(g)membranes;

(h)seals, gaskets, fixings, sealants and backer rods;

[F7(ha)components associated with a solar shading device excluding components whose primary function is to provide shade or deflect sunlight such as the awning curtain or slats;]

(i)thermal break materials where the inclusion of the materials is necessary to meet the thermal bridging requirements of Part L of Schedule 1; F8...

(j)window frames and glass [F9; or

(k)materials which form the top horizontal floor layer of a balcony which are of European Classification [F10A1fl or A2fl-s1] (classified in accordance with the reaction to fire classification) provided that the entire layer has an imperforate substrate under it.]

(4) In this regulation—

(a)a “relevant building” means a building with a storey (not including roof-top plant areas or any storey consisting exclusively of plant rooms) at least 18 metres above ground level and which—

(i)contains one or more dwellings;

(ii)contains an institution; or

(iii)contains a room for residential purposes F11...; and

(b)“above ground level” in relation to a storey means above ground level when measured from the lowest ground level adjoining the outside of a building to the top of the floor surface of the storey.]

Extent Information

E1This version of this provision applies to England only; a separate version has been created for Wales only

Textual Amendments

F1Reg. 7 renumbered as reg. 7(1) (E.) (21.12.2018) by The Building (Amendment) Regulations 2018 (S.I. 2018/1230), regs. 1(4), 2(6) (with regs. 1(3), 3)

Materials and workmanshipW

7.—[F12(1)] Building work shall be carried out—

(a)with adequate and proper materials which—

(i)are appropriate for the circumstances in which they are used,

(ii)are adequately mixed or prepared, and

(iii)are applied, used or fixed so as adequately to perform the functions for which they are designed; and

(b)in a workmanlike manner.

[F13(2) Subject to paragraph (3), building work must be carried out so that materials which become part of an external wall, or specified attachment, of a relevant building are of a minimum European Classification A2-s1, d0 or A1, classified in accordance with BS EN 13501-1:2018 entitled “Fire classification of construction products and building elements. Classification using test data from reaction to fire tests” (ISBN 978 0 580 95726 0) published by the British Standards Institution on 14th January 2019.

(3)  Paragraph (2) does not apply to—

(a)cavity trays when used between two leaves of masonry;

(b)any part of a roof (other than any part of a roof which falls within paragraph (iv) of regulation 2(6)) if that part is connected to an external wall;

(c)door frames and doors;

(d)electrical installations;

(e)insulation and water proofing materials used below ground level;

(f)intumescent and fire stopping materials where the inclusion of the materials is necessary to meet the requirements of Part B of Schedule 1;

(g)membranes;

(h)seals, gaskets, fixings, sealants and backer rods;

(i)thermal break materials where the inclusion of the materials is necessary to meet the thermal bridging requirements of Part L of Schedule 1; or

(j)window frames and glass.

(4) In this regulation—

(a)a “relevant building” means a building with a storey (not including roof-top plant areas or any storey consisting exclusively of plant rooms) at least 18 metres above ground level and which—

(i)contains one or more dwellings;

(ii)contains an institution; or

(iii)contains a room for residential purposes (excluding any room in a hostel, hotel or boarding house);

(b)“above ground level” in relation to a storey means above ground level when measured from the lowest ground level adjoining the outside of a building to the top of the floor surface of the storey.]

Extent Information

E2This version of this provision applies to Wales only; a separate version has been created for England only

Textual Amendments

F12Reg. 7 renumbered as reg. 7(1) (W.) (13.1.2020) by The Building (Amendment) (Wales) Regulations 2019 (S.I. 2019/1499), regs. 1(4), 2(6)(a) (with reg. 3)

F13Reg. 7(2)-(4) inserted (with differences in reg. 7(2) and (4)(a)(iii)) (W.) (13.1.2020) by The Building (Amendment) (Wales) Regulations 2019 (S.I. 2019/1499), regs. 1(4), 2(6)(b) (with reg. 3)

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