(1) Free-standing brick walls of the minimum thickness shown in Table XIII shall not be constructed empirically to greater heights above the adjoining finished ground level than are set forth in that Table.

(2) Where the details of piers are given in Table XIII, every such wall shall be bonded into piers which, together with the thickness of such wall, shall comply with the minimum dimensions set forth in that Table and are spaced in accordance with the maximum dimensions laid in that Table.

(3) The foundation of every such wall shall project not less than 120 millimetres from the face of each side of such wall, and the piers, if any, in such wall shall not overhang such foundation.

(4) The upper surface of such foundation shall be not less than 150 millimetres below the adjoining finished ground-level at any point.

Table XIII
EMPIRICALLY CONSTRUCTED BRICK FREE-STANDING WALLS

*The largest dimension to be constructed at right-angles to the wall.
(5) Such foundation shall be of concrete which shall comply with the relevant requirements of section 14.
(6) No damp-Proof course shall be permitted between such wall and its foundation.