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Building Act.--1923.

Enclosure walls.

Curtain walls.

50. The shearing stress in the concrete is not to exceed 65lbs. per square inch When a greater resistance to shearing is shown, the working stress is not to exceed one-fifth of the ultimate strength.

51. The adhesive stress is not to exceed the permissible shearing stress.

52. Reinforced concrete enclosure walls shall not be less than 6in. thick. If the area of the wall surface included between any two adjacent wall columns and floor girders exceeds 300 sq. ft. and is less than 400 sq. ft., the thickness of the wall shall not be less than 8in. For any area over 400 sq. ft. the thickness shall be increased to the requirements of the surveyor. In reinforced concrete walls the sectional area of reinforcement shall aggregate not less than one-half per centum of the area of the concrete. Additional reinforcement shall be placed round openings, and all reinforcements secured at intersections.

53. Curtain walls and self-supporting walls of brick may be used as provided for under the heading “ Steel Frame Construction.

54. Curtain walls of brick may be used as provided for under the heading “Steel Frame Construction.

55. (1) Floor and roof slabs shall be not less than 3in. in thickness. (2) The spacing of rods shall not be greater than three times the effective depth of the slabs.

(3) Slabs shall contain not less than one-eighth of 1 per centum of the sectional area in the form of distributing rods, which shall be secured to main rods at every second intersection.

56. The minimum covering of concrete over any portion of the reinforcing steel shall be as follows:

(a) For flat plates or slabs, not less than fin.
(6) For beams or girders, not less than 1}in.

(c) For columns, not less than 2in.
57. The bases of columns in buildings of the warehouse class shall be protected
against chafing by wood or other lagging.

58. Party walls may be constructed of reinforced concrete if the adjoining buildings are erected simultaneously.

Floor and roof slabs.

Protection of steel.

Chafing land.

Party walls.

Soo. 30.


Height of external walls.

Building to be wholly in one Occupation. Distance from street and from other building.


STRUCTURES. 1. The external walls of every such building or structure shall not exceed in height 27ft., measured from the floor level to the top of the wall plates.

2. Such building or structure shall be constructed or adapted for one occupation only.

3. Such building or structure shall be distant at least 8ft. from any street or way and 10ft. or the height of the walls, whichever is the greater, from the boundaries of the land not in the same occupation, or from any brick building. The distance between any two wooden buildings shall not be less than 20ft., except in the case of outbuildings in connection with dwellings which comply with the provisions of regulation 11 of this part.

4. No additions in any materials shall be made to any wooden building or structure which will decrease the insulation required for such building or structure, nor shall any wooden building or structure be erected in such a position as will nullify the insulation of any existing building or structure,


Building Act.-1923.

5. The foundations for any walls of wood shall consist of redgum or jarrah stumps Foundation. not less than 4in. by 4in., spaced not more than 4ft. apart, and sunk not less than 18in, below the natural surface of the ground.

6. Wooden buildings, transported or removed either in whole or in part into Removal and rethe Municipality or from one part of the Municipality to another part shall, when erection of wooden

buildings. completed, comply with all the provisions of these regulations in regard to the erection of new buildings.

7. The exterior surface of walls shall be covered with weatherboards, galvanized Exterior surface, iron, fibro-cement sheets, stucco, or other materials approved by the surveyor. Weatherboards shall be of good, sound timber, free from large knots. Galvanized iron shall be of good quality not less than No. 26 gauge. Fibro-cement sheets shall be not less than three-sixteenths of an inch in thickness. Stucco or rough cast shall be applied to expanded metal lathing not less than No. 24 gauge, the first or scratch coat to be lime mortar gauged with cement and mixed with sufficient hair to thoroughly bind the same, the second coat to be cement mortar, and the final coat to consist of one part cement, one part lime, and three parts crushed stone, coke, or gravel.

8. The interior surface of all walls and ceilings of wooden buildings of the domestic Inner walls and building class shall be finished in lath and plaster, or metal, asbestos, or fibrous ceilings. plaster, but the surveyor may sanction in writing a wooden dado not exceeding 5ft. in height, and also the lining of the undersides of rafters in skillion roofs with tongued and grooved boards.

9. Roofs shall be covered with tiles, slates, metal, or other fire-resisting materials. Roofs.

10. In the construction of all wooden buildings, except sheds, vermin plates Vermin plates. shall be used.

11. Outbuildings in connection with a dwelling-house, not more than two squares Outbuildings not in area, or 8ft. in height, and not provided with a wooden floor, may be erected exceeding two with studs of hardwood, covered with hardwood weatherboards, metal not less squares in area. than 26 gauge, or cement sheeting not less than three-sixteenths of an inch in thickness. Such outbuildings shall be at least 5ft. from any dwelling-house or boundary of the allotment on which the dwelling-house stands unless the wall adjoining such dwelling-house or boundary, as the case may be, is of brickwork 9in. thick, and with parapet 12in. in height.


12. Green-houses and sleeping-out porches attached to brick or stone buildings Green-houses may have the necessary frame sashes and doors constructed of woodwork.

attached to build. ings.

Sec. 20 (1), (e).


1. Verandabs and porticoes shall be of cantilever form when practicable, and,
unless otherwise permitted by the Council, the fascia shall finish flush with the
face of the kerb.

2. All girders, rafters, purlins, and other framing shall be of steel or iron. Girders shall be encased and the underside of verandahs shall be lined if required by the

surveyor and in the manner directed by him. 3. 2in. by lin. redwood battens may be used for the encasing of girders and the attaching of the linings. The battens shall be secured to girders, rafters, and purlins by clip bolts, and no timber framing shall be used to support battens.

4. The cantilever and fascia girders shall not exceed 12in. in depth for verandahs over 12ft. in width, and 8in. in depth for verandahs less than 12ft. in width.

5. The roofs of cantilever verandahs shall have a pitch of ļin. per foot towards the building, and shall be covered with No. 24 gauge galvanized corrugated iron


Building Act.—1923.

secured to purlins with galvanized iron bolts or clips and washers at the top of corrugations. The iron shall be lapped two corrugations at sides and not less than 9in. at ends of sheets, and shall be riveted every 12in. at sides and at every third corrugation at ends.

6. Box gutters shall be formed at or near the building line and shall be made out of No. 24 gauge galvanized iron well lapped, riveted, and soldered at ends of each sheet, and be supported on metal straps.

7. Downpipes shall be of sufficient capacity to efficiently discharge rainwater falling on roofs. The first 6ft. length of pipes shall be wrought or cast iron. Pipes shall be chased to a height of 9ft. into walls or piers, or set back so as not to project beyond face of building, and shall discharge under footway into the street channel or be connected up to underground stormwater drains.

8. Skylights may be provided in verandahs over 12ft. in width. Glass shall be wire-rolled plateglass in single lengths set in approved glazing bars.

9. Piilar verandahs, when permitted, shall be of the form and dimensions approved by the Coureil.

Sec. 22.

THE FIFTH SCHEDULE CONDITIONS TO BE COMPLIED WITH IN THE CASE OF SIGNBOARDS. Every signboard affixed to the front of any building shall be placed vertically against the wall so as not to cover any portion of any window or architectura projections, and so as not to overhang or extend over any public footway more than 4in. A signboard shall not be nearer than 2ft. to the ends of the building to which it is affixed, unless the ends of such signboard abut against brick, stone, or cement corbels, piers, or pilasters, at the least 9in, wide on the face and projecting not less than lin. in front of, and 3in. above and below, such signboard. A signboard shall be so fixed that its top edge shall not stand at a higher level than the top of the para pet at the rear of it: Provided that signboards may be erected at right angles to the building line in lanes and alleys 20ft. or less in width. The dimensions of such signboards shall not exceed 3ft. by 2ft., and shall not project more than 3ft. from the face of the wall to their extreme edge. The minimum height from the pavement or roadway to the underside of such signboards shall be 12ft.

Electric signs consisting of metal trough letters and fitted with electric light globes may be affixed to the front of buildings. Such signs shall be attached to metal frames secured to the wall of the building in a manner approved by the surveyor.

Sec. 25.


1. Show cases shall be constructed of plate lass with metal moulds or wood moulds encased in metal not less than 26 gauge.

2. Mirrors and show cases shall be affixed flat against a wall, pier, or pilaster.

3. Show cases shall not extend more than 4lin. from the face of such wall, pier, or pilaster.

4. Moulds shall not project more than ļin. beyond the face of the glass in any mirror or show case, except in the case of cap moulds more than 9ft. above the levels of the pavement.

5. Backs of mirrors and show cases and also the bases of show cases may be of three-ply hardwood.

6. Mirrors and show cases shall be detachable from walls, piers, or pilasters, and shall be fixed 12in. above the pavement level. Brackets approved by the surveyor may be used in addition to wall plugs.

7. Tiling on any wall, pier, or pilaster shall not project beyond the street ali nment as fixed by the surveyor.


Building Act.--1923.


Sec. 5, The following materials shall, for the purposes of this Act, be deemed to be fire-resisting materials :(a) For general purposes : Brickwork constructed of bricks, well-burnt, hard, and sound, or of bricks

of other approved manufacture, properly bonded and solidly put
together with mortar, compounded of lime or cement and sharp
clean sand, hard, clean, broken brick, broken stone, grit, or hard

Granite and other stone suitable for building purposes by reason of its

solidity and durability.
Iron, steel, copper, and other approved metals.
Slate, tile, brick, and terra-cotta, when used for coverings or corbels.
Flagstones when used for floors over arches, such flagstones not being exposed

on the underside, and not being supported at the ends only.
Concrete composed of broken brick, tile, stone, pumice, or coke breeze mixed

with sand and lime, cement, or calcined gypsum in approved

Reinforced concrete.
(6) For special purposés :
In the case of stairs and landings, oak, jarrah, red gum, or other hard timber,

the treads, risers, strings, and bearings being not less than 2in.
(nominal) thick, and the ceilings and soffits, if any, being of plaster
or cement, approved as bestos sheeting, tongued and grooved jarrah,
or other hardwood not less than žin. thick, or iron not less than
No. 26 Birmingham wire gauge. Jarrah, red gum, and other
approved hardwood, when used for beams or posts or in combina-
tion with iron or steel, the iron or steel, if any, being protected by
plastering or other incombustible or non-conducting external

coating, not less than 2in. in thickness.
In the case of floors :—Brick, tile, terra-cotta, or concrete, not less than

4}in. thick, in combination with iron or steel, and reinforced

concrete not less than 3in. thick.
In the case of roofs :- Brick, concrete, terra-cotta, or reinforced concrete.
In the case of verandahs, outside landings, the treads, strings, and risers of

outside stairs, outside steps, and porches :-Jarrah, red gum, or

other hard timber not less than 2in. thick (nominal).
In the case of internal partitions forming party structures, enclosing walls

to lifts, staircases, and passages :-Reinforced concrete not less
than 4in. thick, terra jotta not less than 6in. thick, brickwork,

concrete, or other incombustible material not less than 9in. thick.
In the case of glazing for vertical party structures and fixed borrowed lights

in partitions of fire-resisting construction :-Two thicknesses of
wired glass not less than fin. in thickness, fixed not less than 2in.
a part, in panels not exceeding 30in. by 24in., the panels being
secured in approved metal frames. In the case of glazing for
horizontal party structures :—Floor lights of glass not less thar.
fin. in thickness, or more than 4in. square, set in metal or other
incombustible frames; this shall only apply to floors of lobbies,

passages, and landings.
c) Any material from time to time approved by the surveyor as fire-resisting.


Building Act.--1923.

Seo. 100.


FEES PAYABLE TO THE COUNCIL. The following fees shall be charged and received by the Council for acts done or to be done by the Council or the surveyor under the provisions of this Act, and for permits and licences issued by the Council :

A. FEES IN RESPECT OF NEW BUILDINGS OR ADDITIONS. 5s. per square up to 20 squares. 2s. 6d. per square over 20 squares. 1s. per square for each additional storey based on floor of greatest area. Minimum fee, 10s.; Provided that the minimum fee in respect of any

application dealing with any outhouse or other appurtenance to be erected in connection with any building already erected at the time of such application, and the estimated cost of which does not exceed £50, shall be is.

B. FEES IN RESPECT OF STRUCTURAL ALTERATIONS. For every structural alteration made to any building the fee shall be one-fourth of the fee charged in the case of new buildings or additions, but shall in no case be less than 10s.

C. OTHER FEES. For the following duties performed by the surveyor, where such duties are not performed incidentally to the building or rebuilding of or adding to or altering any building in respect of which any other fees may be payable, that is to say

£ s. d. Showcase or mirror

0 10 0 Construction of stairs

1 0 0 Cutting away chimney breasts, &c.

1 0 0 Arches or floors

1 0 0 Openings in party or external walls

0 10 0 Condemning party fence walls

0 10 0 Inspection and removal of ruinous buildings

2 0 0 Surveying party walls, &c.

1 0 0 Surveying hoardings.

1 0 0 Installation of petrol tank

1 0 0 Erection or construction of room for the storage of petrol, films, carbide or other inflammable materials

1 0 0 Installation of new shop front

1 0 0 Installation of new shop front requiring the provision of new girders or columns

2 0 0 Furnace, chimney shaft, or similar shaft for ventilation or other purposes, if not exceeding 75ft. in height....

2 0 0 If exceeding 75ft. and not exceeding 100ft. in height

2 10 0 For every additional 10ft. or portion of 10ft. in height

0 10 0 Carrying of a flue from an oven, stove, steam boiler, furnace, or close fire into an old flue.....

0 10 0 Computation fees in respect of reinforced concrete and frame construction buildings :

One-tenth of 1 per centum on value of the building up to £10,000 ; and
One twenty-fifth of 1 per centum on the amount exceeding £10,000, but in no

case less than £l.
Calculation fee on brick or stone buildings in which the floors are carried by
internal pillars or columns

1/15 of 1 per centum for first £10,000; and

1/30 of 1 per centum for the remainder. Calculation fee for reinforced concrete or fire-resisting floors, including girders

or beams, £2. Calculation fee for reinforced concrete or fire-resisting floors without girders

or beams, £1. Calculation fee in connection with reinforced concrete stairs, £1. Fees for special services :--In respect of any other act by any officer of the

Council in respect of any permit, licence, or sanction issued by the Council not otherwise provided for, £l.


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Adelaide: By authority, R. E. E. ROGERS, Government Printer, North Terrace.

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