(1) Materials used as veneers shall have a thickness not less than stated in S.A.B.S. 073 except where the local authority permits a local diminution of thickness such as required to permit the support of veneer on a rib, slab or beam.

(2) Materials used for masonry veneer shall be sound and durable and free from fissures which might affect their durability, and, in the opinion of the local authority, have a record of satisfactory use under conditions comparable to those of their intended use, or be proven durable under test conditions comparable to exposure in the place of their intended use.

(3) No materials other than those referred to in S.A.B.S. 073 shall be used for anchors unless they are tested and shown to be satisfactory, in the opinion of the local authority.

(4) The thickness of the veneer shall not be included in the required thickness of veneered walls. The thickness of the backing and the height of the veneered walls shall be-

a) for empirically constructed walls, as set out in sections 42 and 43;

b) for designed walls, as required by sections 63 to 82

Provided that due allowance shall be made for the additional load caused by the mass of the veneer, and that effective thickness of the wall is derived from the thickness of the backing alone.

(5) Veneer faces shall be designed and constructed in accordance with the requirements of S.A.B.S 073, unless calculations of stresses are submitted to, and approved by the local authority.

(6) Heavy masonry veneer facings shall be tied into a backing of masonry or other non-combustible material5 which is, in the opinion of the local authority of adequate stability and rigidity.

(7) Light masonry veneer facings shall be provided with supports at the heads of all openings, except where the omission is specifically approved by local authority.

(8) The use of veneers shall otherwise comply with the requirements of S.A.B.S. 073.6

5 Attention is drawn to the fact that masonry veneer facings which are fixed direct to the structural framework must comply with the requirements for curtain-walls or panel-walls(see definition)

6The sealing-coat and mastic should preferably be from the same manufacturer.