The following requirements apply regarding damp-proofing and waterproofing-

a) subject to the provisions of paragraph (c), there shall be provided, in the erection of every building, damp-proofing or water-proofing, in accordance with the requirements of this Chapter;

b) water or moisture shall be prevented from entering the interior of such building, except as provided for in subsection (6) of section 9;

c) the local authority may permit the oimission of damp-proofing or water proofing in any building in which there are no habitable rooms, and where the person intending to erect such building can show to the satisfaction of the local authority that no danger to the health of persons or to the stability of the building will be caused by the entry of moisture or water into the building;

d) damp-proofing and waterproofing materials shall comply with C.A.S. No A25. Damp-proofing materials, or be other material approved by the local authority;

e) mastic asphalt damp-proof courses shall be applied in at least two layers;

f) damp-proofing and water proofing procedures following S.A.B.S. O21, Waterproofing of buildings, shall be deemed to satisfy the requirements of this section.