# The Building Regulations (Northern Ireland) 2012, Regulation 22: Interpretation


In this Part—
“External wall” of a building includes reference to—
(a)anything located within any space forming part of the wall;
(b)any decoration or other finish applied to any external (but not internal) surface forming part of the wall;
(c)any windows and doors in the wall; and
(d)any part of a roof pitched at an angle of more than 70° to the horizontal if that part of the roof adjoins a space within the building to which persons have access, but not access only for the purpose of carrying out repairs or maintenance.
“Harmful substances” includes fumes and vapours;
“Relevant work” means—
(a)the erection of a building;
(b)the structural alteration or extension of a building;
(c)the provision of any service or fitting; or
(d)the backfilling of any excavation carried out in connection with (a), (b) or (c); and
“Specified attachment” means—
(a)a balcony attached to an external wall;
(b)a device for reducing heat gain within a building by deflecting sunlight which is attached to an external wall; or
(c)a solar panel attached to an external wall.

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Source: https://www.legislation.gov.uk/nisr/2012/192/regulation/22 (the official version)
Page: https://openlegislation.uk/building-regulations-northern-ireland-2012/regulation-22
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.