AUCKLAND PROVINCIAL GOVERNMENT GAZETTE.

339

underside of the floor next below the topmost floor to the top of the wall.

If the building be more than 54 feet high, the thickness of the external walls must be at the least 21½ inches from the top of the footing to the underside of the floor next but one below the topmost floor, and at the least 17½ inches from the underside of the floor next but one below the topmost floor to the underside of the topmost floor, and at the least 13 inches from the underside of the topmost floor to the top of the wall; the thickness of the party walls must be at the least 21½ inches from the top of the footing to the underside of the floor next but one below the topmost floor, and at the least 17½ inches from the underside of the floor next but one below the topmost floor to the underside of the topmost floor, and at the least 13 inches from the underside of the topmost floor to the top of the wall.

Piers.

12. Any wall less than 13 inches thick carrying a roof with principals, or extending for a greater distance than 20 feet, without being tied in with a return wall of brick or stone or with a framed stud partition, must be strengthened with piers at least having 4 inches projection, and such width and distance apart as the Building Surveyor may direct.

Any third story enclosed by a wall less than 13 inches thick, must not exceed 10 feet in height.

Footings.

13. Every footing must be built of brick or stone, or of such bricks and stones together with mortar or cement, in such a manner as to produce solid work, and the bottom course of every footing must be at the least 8 inches wider than the wall standing thereon, and based upon solid ground, or other sufficient foundation.

External and Party Walls.

14. Every external wall and party wall (except as exempted by Section 49 of these Regulations) hereafter erected must be built wholly of bricks or stone, or bricks and stone together laid in, and with mortar or cement, in such manner as to produce substantial work; and every such wall must be carried up the full thickness specified in the foregoing Schedule.

Heights.

15. The height of any building or part of any building is to be ascertained by measuring from the surface of the lowest floor up to the top of the wall plate for receiving the roof.

Openings, &c.

16. In all external walls, besides all requisite openings for doors and windows, recesses may be formed so that the back thereof be of the thickness of 8½ inches at the least, and so that the sufficiency and stability of the wall in the opinion of the Building Surveyor be not injuriously affected by making such recesses.

Parapets.

17. Every external wall and party wall hereafter built of bricks or stone must be carried up, and remain 18 inches at least above the highest part of the adjacent gutter; and the thickness of an external wall or party wall so carried up above the level of the gutter, and forming a parapet must be at the least 8½ inches; and should any external wall or party wall be finished with a gable, the same shall be carried up, at least 8½ inches thick, 15 inches above the roof at least, measured at right angles to the back of the rafter.

Projections.

18. Projections from buildings, such as base course piers, columns, pilasters, door and window dressings, strings, fascias, copings, parapets, blocking courses, or other architectural decorations, forming part of an external wall, shall not project beyond the street line more than four inches (except cornices, entablatures, or pediments, which may project any distance approved by the Building Surveyor) and all projections of every character must be built of the same materials as are by these regulations directed to be used for building external walls; and it shall not be lawful to project any other part of a building beyond the street line than those parts above allowed.

Division of Buildings.

19. If any building be hereafter erected with separate entrances or separate staircases, or if such building be hereafter converted, used or occupied as two or more separate buildings, each having a separate entrance or staircase, then every such building shall be deemed to be two or more separate houses, and such separate houses must be divided from each other by a party wall built with the materials and of the thickness as specified in the Schedule for that purpose.

Breastsummers.

20. Every breastsummer fixed to carry the front wall or cornice of a building must be laid upon a template or corbel of stone, wood, or iron, which template or corbel must be tailed through such wall at least two thirds of the thickness thereof, and every breastsummer must have at least 4½ inches of brick or stone work at the end thereof and may be fixed in line with the face of the external wall; provided it is covered on the external face with plate iron.

Columns, &c.

21. In addition to the supporting walls at the end of the breastsummer, every breastsummer over twelve feet span must rest upon one or more sufficient intermediate piers of brick or stone, or on iron columns standing on solid stone foundations.

Bearings of Timbers.

22. The ends of all timbers bearing upon a party wall exceeding 9 inches in thickness must not be laid nearer than two inches to the centre thereof, unless such timbers are separated longitudinally from the timbers of the adjoining house by at least 4 inches of brick work, in which case they may bear upon the wall for two-thirds of its thickness. The ends of all timbers bearing upon a party wall 9 inches thick must not project through the wall but must have 4 inches of brickwork at the ends of the same, and all the timbers must be separated from those of the adjoining house by at least 4 inches of brickwork.

Chimneys.

23. Every chimney and chimney-stack must be built wholly of brick or stone, with mortar or cement, and every such chimney and chimney-stack must be built from the foundation (and from the corbels, if corbelled out according to Section 25 of these Regulations) to the top thereof without any corbelling over whereby any upper part of the brickwork of such chimney or chimney-stack shall overhang any lower part of the brickwork on the front thereof.

Angle Chimneys.

24. The breast of any angle chimney built in the internal angle of any building above the ceiling of any lower storey shall not exceed 8 feet in width, and the jambs, breast, and flue must be properly supported.