CO129-554-9 Buildings Ordinance 1935 15-4-1935 - 15-4-1935 — Page 38

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Openings

and recesses

to be arched or spanned.

Lath and

plaster walls prohibited.

Bonding of

walls of domestic buildings.

16

(5) Every opening and every recess in any wall shall either be arched over with brick or stone-work in cement- mortar or spanned by a steel girder or ferro-concrete beam of such dimensions and construction as the Building Authority may consider necessary for the support of the superincumbent weight.

28. No lath and plaster wall, or other hollow wall, shall be hereafter constructed in any building except with the per- mission of the Building Authority as signified by the approval of the plan required under the provisions of this Ordinance.

Bonding for the walls of domestic buildings.

29. Every building hereafter erected shall have courses of hoop-iron, tarred and sanded, or other suitable bonding, built into the main walls at the level of the foundations, if required by the Building Authority, and at the level of each floor and at the level of the eaves. Each such course shall consist of not less than three bands in the case of foundations and of all walls of a thickness of not less than eighteen inches, and of not less than two bands in the case of all walls of a less thickness than eighteen inches; each hoop-iron band shall measure not less than one inch and a quarter in width, and not less than one-thirty-second of an inch in thickness, and such bands shall be continuous and lap-jointed wherever prac- ticable. In any case in which continuous bands are not prac- ticable they shall be arranged as the Building Authority may require.

Bearings of

bressummers and lintels.

Impermeable floors to be provided.

[cf. s. 167.]

Bressummers and lintels.

30. Every joist, bressummer and lintel shall be of sufficient strength and rest upon a template of cement concrete or stone laid in cement mortar and shall have a bearing of not less than the depth of the member.

Concreting of ground surfaces.

31. (1) The ground surface of the lowermost storey or where there is a space below such storey then the ground sur- face of such space, of every building and the floor of every kitchen, bathroom, latrine, and water closet and the ground surface of every area, backyard, court-yard, alley-way or space on which slops may be thrown or from which foul waters flow, shall be properly covered over with a layer of good lime concrete not less than four inches thick finished off smooth with not less than two inches of cement concrete or hard glazed bricks or granite paving or glazed tiles bedded and jointed in cement mortar or with not less than four inches of cement concrete or with such other material as may be ap- proved by the Building Authority. For the purposes of this section the cement concrete shall be composed of one part of cement, two parts of sand and four parts of stone broken to pass a one inch ring for interior surfaces and one part of cement, three parts of sand and five parts of stone broken to pass a one inch ring for exterior surfaces.

(2) The ground surface of every area, kitchen, latrine, water closet, backyard, court-yard, alley-way or space on which slops may be thrown, shall have a fall of not less than 1 in 40 from the walls of the building towards the surface channel or other outlet for the drainage of such surface.