Building (Amendment) Regulations (Northern Ireland) 1998

D2 Deemed-to-satisfy provisions for stability

The requirements of regulation D1 shall be deemed to be satisfied if—

(a) the loads to which a building will be subjected are calculated in accordance with, in the case of—

(i) dead and imposed loads (excluding imposed roof loads) – BS 6399: Part 1: 1996;

(ii) imposed roof loads – BS 6399: Part 3: 1988; and

(iii) wind loads—

(A) BS 6399: Part 2: 1997; or

(B) CP 3: Chapter V: Part 2: 1972 (in no case shall S3 be taken as less than 1):

Provided that—

(A) the actual loads are used, where the actual loads to which a building is to be subjected is likely to exceed the loads so calculated; and

(B) loads used allow for possible dynamic, concentrated and peak load effects which may occur; and

(b) the design and construction of the work is carried out in accordance with the relevant recommendations of the following documents, that is to say, in the case of—

(i) foundations—

(A) BS 8004: 1986; or

(B) DOE(NI) Technical Booklet D: 1994: Sections 1 and 5 (for houses and small buildings);

(ii) structural work of reinforced, prestressed or plain concrete—

(A) BS 8110: Part 1: 1997, BS 8110: Part 2: 1985 and

(B) BS 8110: Part 3: 1985;

(iii) structural work of steel—

(A) BS 449: Part 2: 1969; or

(B) BS 5950: Part 1: 1990, BS 5950: Part 2: 1992 and BS 5950: Part 5: 1987;

(iv) structural work of composite steel and concrete construction—

• BS 5950: Part 3: Section 3.1: 1990 and BS 5950: Part 4: 1994;

(v) structural work of aluminium—

(A) CP 118: 1969 using one of the principal or supplementary aluminium alloys designated in Section 1.1 of that Code, and for the purpose of Section 5.3 of that Code, the structure shall be classified as a safe-life structure; or

(B) BS 8118: Part 1: 1991 and BS 8118: Part 2: 1991;

(vi) structural work of masonry—

(A) BS 5628: Part 1: 1992, BS 5628: Part 2: 1995 and BS 5628: Part 3: 1985; or

(B) DOE (NI) Technical Booklet D: 1994: Sections 1, 3 and 4 (for residential buildings of not more than 3 storeys, small single storey non-residential buildings and small buildings forming annexes to residential buildings (including garages and outbuildings)); and

(vii) structural work of timber—

(A) BS 5268: Part 2: 1996 and BS 5268: Part 3: 1998; or

(B) DOE (NI) Technical Booklet D: 1994: Sections 1 and 2 (for single family houses of not more than 3 storeys).