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Ceilings.
46. No ceiling shall hereafter be erected in any building Ceilings
prohibited. except with the permission of the Building Authority as signified by the approval of the plan required under the provisions of this Ordinance
Corbelling.
stone or
47. All corbelling for the support of floor or of roof Corbels timbers shall be done in stone cut to flat beds, or in red to be of brick, at least nine inches in length, set in cement-mortar. brick. The entire thickness of the walls throughout the height of such corbelling shall also be built in cement-mortar. No one corbelling course if of brick shall project beyond the course immediately beneath it more than two and a quarter inches.
Roofs.
of incom-
material.
48. The roof of every building and of any minor Covering of superstructure placed above such roof except the doors, and roof to be frames of dormers or sky-lights, shall be externally covered bustible with tiles, glass, metal, or other incombustible substance. All hatchways leading out to the roofs of buildings shall be provided with hatches or covers which, if not composed entirely of metal, shall be properly sheathed externally in sheet-zinc or other metal approved by the Building Authority.
between
49. No roof timbers of any one building shall approach Space nearer than nine inches towards the roof timbers of any wers of other contiguous building, and the space intervening contiguous between the ends of such timbers shall be properly and substantially built up solid with whole bricks or with stone laid in mortar.
buildings.
on roofs
50. No platform, superstructure, staging, framework, Structures wire, wire netting, bamboo, matting or structure whatsoever, prohibited. shall be erected, maintained or fixed over or upon the roof of any building except with the permission of the Building Authority or unless used solely for the purpose of drying clothes
51. The roofs of all buildings, including verandahs shall not, unless wholly constructed of incombustible materials, be built into the thickness of any wall, but shall either rest upon the top of the wall or upon corbelling or an offset, so arranged as to give a bearing of at least four and a half inches for the roof.
Roofs to
stone-work.
rest upon brick or
and rain-
water
52. The roof of every building (including every Eaves- verandah and balcony) and the floors of every verandah and gutters, balcony shall be so arranged and constructed, and so supplied with eaves-gutters and rain-water down-pipes properly down-pipes connected with the side-channels as to prevent any water provided. being discharged upon or over any public foot-path or roadway.
Wood-work.
to be
53. No bond timber or wood-plate shall be built into Bond the thickness of any wall.
timbers
or wood- plates not to be built into walls.