CTI Media Room

MHCLG announce changes to Approved Document B volume 2 and Approved Document 7

MHCLG announce changes to Approved Document B volume 2 and Approved Document 7
 

Below is summary of the changes to the Approved Documents following the Government’s consultation on banning the use of combustible materials in the external walls of high-rise residential buildings. (The consultation can be found here)

The changes to Approved Document B volume 2 and Approved Document 7 take effect on 21 December 2018 for use in England. Previous editions of these guidance documents will continue to apply where a building notice or an initial notice has been given to, or full plans deposited with, a local authority before 21 December 2018 and either the building work to which it relates:

(a) has started before that day; or

(b) is started within the period of two months beginning on that day.

 

Summary of changes – new requirements

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 Class A1, classified in accordance with BS EN 13501-1:2007+A1:2009 (Fire classification of construction products and building elements. Classification using test data from reaction to fire tests) Institution

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); and

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.

 

The above requirements do 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.

 

Full details of these changes are given in the associated documents listed below.

- The statement by Bob Ledsome, An Assistant Secretary in the Ministry of Housing, Communities and Local Government can be found here

- The amendments to Approved Document B Volume 2 can be found here

- The amendments to Approved Document 7 can be found here

- The Statutory Instrument which makes the required changes to the Building Regulations (S.I.2018/1230) can be found here

 

[News URL: http://cti-timber.org/content/mhclg-announce-changes-approved-document-b-volume-2-and-approved-document-7]

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