AS-2049-2002.pdf
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1、AS 20492002 (Incorporating Amendment No. 1) Australian Standard Roof tiles AS 20492002 Building Code of Australia Primary referenced Standard This Australian Standard was prepared by Committee BD-008, Roof Tiles. It was approved on behalf of the Council of Standards Australia on 28 August 2002. This
2、 Standard was published on 30 October 2002. The following are represented on Committee BD-008: Australian Building Codes Board Australian Council of Trade Unions CSIRO Manufacturing (b) quality of materials; and (c) the finished product. The following types of roof tile are considered: (i) Shingle (
3、plain) tiles. (ii) Side locking tiles (iii) Side and headlocking tiles. NOTES: 1 Other types of roof tiles are not precluded. 2 The various terms used in this Standard are illustrated in Appendices A, B and C. 2 REFERENCED DOCUMENTS The following documents are referred to in this Standard: AS 1170 S
4、tructural design actions 1170.2 Part 2: Wind actions 1379 Specification and supply of concrete 1478 Chemical admixtures for concrete, mortar and grout 1478.1 Part 1: Admixtures for concrete 2050 Installation of roof tiles 2758 Aggregates and rock for engineering purposes 2758.1 Part 1: Concrete aggr
5、egates 3582 Supplementary cementitious materials for use with portland and blended cement 3582.1 Part 1: Fly ash 3972 Portland and blended cements 4046 Methods of testing roof tiles 4046.1 Method 1: Determination of distortion 4046.2 Method 2: Determination of batten lugs and squareness 4046.3 Metho
6、d 3: Determination of transverse strength 4046.4 Method 4: Determination of water absorption 4046.5 Method 5: Determination of permeability 4046.6 Method 6: Determination of resistance to freeze/thaw 4046.7 Method 7: Determination of resistance to salt attack 4046.9 Method 9 Determination of dynamic
7、 weather resistance 4055 Wind loads for housing A1 5 AS 20492002 .au Standards Australia BS EN 12878 Pigments for the colouring of building materials based on cement and/or lime. Specifications and methods of test 6920 Suitability of non-metallic products for use in contact with water intended for h
8、uman consumption with regard to their effect on the quality of the water 6920-1 Part 1: Specification 6920-2.1 Method 2.1: Methods of testSamples for testing 6920-2.2.1 Method 2.2.1: Methods of testOdour and flavour of waterGeneral method of test 6920-2.2.2 Method 2.2.2: Method of testOdour and flav
9、our of waterMethod of testing odours and flavours imparted to water by 6920-2.2.3 Method 2.2.3: Methods of testOdour and flavour of water. Method of testing odours and flavours imparted to water by 6920-2.3 Method 2.3: Methods of testAppearance of water 6920-2.4 Method 2.4: Methods of testGrowth of
10、aquatic micro-organisms test 6920-2.5 Method 2.5: Methods of testThe extraction of substances that may be of concern to public health. 6920-2.6 Method 2.6: Methods of testThe extraction of metals 6920-3 Part 3: High temperature tests 6920-4 Part 4: Method for the GCMS identification of water leachab
11、le organic substances Guidelines on the collection, care and control of rainwater in tanks 3 DEFINITIONS For the purpose of this Standard, the definitions below apply. 3.1 Ancillary A moulded non-metallic product used to finish the roof; includes apex, ridge, and barge tiles NOTE: See Appendix C for
12、 illustration. 3.2 Roof tile A moulded interlocking non-metallic product used to form the field of the roof. NOTE: See Appendices A and B for illustration. 3.3 Identifiable lot A batch of tiles or accessories of the same type, profile and colour, produced in a single shift, on a particular date, and
13、 at essentially the same time. 3.4 Terracotta A mixture of clay materials fired to a temperature necessary to form a ceramic bond, which will ensure the tile is fit for service and, where necessary, achieve resistance to salt attack. 4 MATERIALS 4.1 Admixtures Any chemical admixtures used in the con
14、crete shall comply with AS 1478, and shall be used in accordance with AS 1379. 4.2 Aggregate Aggregate or the components of the aggregate shall comply with AS 2758.1. AS 20492002 6 Standards Australia .au 4.3 Cement Cement shall comply with AS 3972. 4.4 Fly ash Fly ash shall comply with AS 3582.1. 4
15、.5 Pigments Pigments shall comply with BS EN 12878. 4.6 Surface treatment Materials used for the surface treatment of tiles shall not impart to rainwater, which may be collected from the roof, any objectionable taste, colour or odour of any element or chemical in a concentration known to be hazardou
16、s to health. NOTES: 1 Guidelines are provided in Guidelines on the collection, care and control of rainwater in tanks. 2 A method of assessing compliance with Clause 4.6 is provided by BS 6920. 5 DESIGN AND DIMENSIONS 5.1 General Roof tiles shall be designed and manufactured to ensure that, when fix
17、ed in accordance with AS 2050, the requirements of the dynamic weather resistance test, detailed in AS 4046.9, are satisfied. Sarking requirements relating to wind classification and pitch/rafter length specified in AS 2050 shall be satisfied. 5.2 Dimensional tolerances 5.2.1 General For the purpose
18、s of this Clause (5.2), the dimensions of the tile shall be the mean of measurements taken at the following locations, rounded to the nearest millimetre (a) Exposed width: head, nose and across the mid-point of the tile (see Figure 1). (b) Length: each side and along the centre of the tile. (c) Thic
19、kness: the centre of the tile at the mid-point (excluding lugs or brand imprints) and at the head and nose. 5.2.2 Tolerances A sample of 12 units shall be tested. The dimensional tolerances for roof tiles shall be determined in accordance with AS 4046.2. The mean of the individual results shall be a
20、s follows: (a) Exposed width: manufacturers nominated width 2%. (b) Length: manufacturers nominated length 2%. 7 AS 20492002 .au Standards Australia FIGURE 1 TILE WIDTHS 5.3 Permitted distortion The permitted distortion of any roof tile shall be such that when tested in accordance with AS 4046.1, th
21、e maximum gap shall not exceed (a) 3 mm for plain tiles; (b) 5 mm for side-locking tiles; or (c) 8 mm for head-and-side-locking tiles. 5.4 Batten lugs and squareness Where the design of the tile requires batten lugs, one or more shall be provided on the underside of each tile such that they engage o
22、ver the upper edge of the tiling battens to provide for the horizontal alignment and vertical restraint of tiles when fixed. When tiles are tested in accordance with AS 4046.2, the shape and position of the batten lugs, where fitted, shall be such that where required, each of the 12 test specimens i
23、s self- supporting. NOTE: Some single profile tile designs cannot be supported by the batten lugs without additional restraint, e.g., multiple nailing. In this case, to test for squareness, the apparatus should be used horizontally. 6 WORKMANSHIP AND FINISH The surface of the tile shall be free from
24、 defects, irregularities or excrescences that would detract from the function of the completed roof, as specified in Clause 5.1 NOTES: 1 Some minor surface marks and blemishes are inherent in the manufacturing process. 2 Surface rectification for minor marks and blemishes is an acceptable form of re
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