Building Regulations (Northern Ireland) 2000

Application and interpretation

F1—(1) Subject to paragraphs (2) and (3) this Part shall apply to any building and, where a building contains one or more dwellings, to each such dwelling separately.

(2) Regulation F2 shall not apply to—

(a) an external wall, floor or roof of any part of a dwelling which consists of—

(i) a shed or store entered solely from outside; or

(ii) a boathouse, conservatory, garage or porch;

(b) a building, other than a dwelling, which has a floor area not exceeding 30 m²; and

(c) a building or part of a building, other than a dwelling, which—

(i) in the case of a building for industrial or storage purposes – is unheated or has a space heating system with a design output rating not exceeding 50 W per square metre of floor area; or

(ii) in the case of any other building – is unheated or has a space heating system with a design output rating not exceeding 25 W per square metre of floor area.

(3) Regulation F3(2) shall not apply to—

(a) a dwelling;

(b) the common parts of a building which are intended for the exclusive use of two or more dwellings; and

(c) a building in which the floor area provided with artificial lighting does not exceed 100 m².

(4) In this Part—

• space heating system andhot water supply system do not include a system or that part of a system which heats or stores water solely for a commercial or industrial process; and

• pipes and ducts means any pipe and any duct in a space heating system or hot water supply system which is intended to carry a heated liquid or gas, and includes associated fittings.