AS/NZS 4256.2:1994 Plastic roof and wall cladding materials, Part 2: Unplasticized polyvinyl chloride (uPVC) building sheets
Standards Australia/Standards New Zealand
Supersedes: AS 2376.1-1980 Plastic roof and wall cladding materials, Part 2: Unplasticized polyvinyl chloride (uPVC) building sheets
Supersedes: AS 2920-1987 Plastic roof and wall cladding materials, Part 2: Unplasticized polyvinyl chloride (uPVC) building sheets
Supersedes: AS 2376.2-1981 Plastic roof and wall cladding materials, Part 2: Unplasticized polyvinyl chloride (uPVC) building sheets
Draft Designation: DR 93094Superseded by: AS 4256.2-2006 Plastic roof and wall cladding materials, Part 2: Unplasticized polyvinyl chloride (uPVC) building sheets
This Standard was prepared by the Joint Standards Australia/Standards New Zealand Committee PL/22 on Plastic Building Sheets to supersede (in part) AS 2376.1—1980, Extruded PVC.
This Standard is one of a series of Standards which, when complete, will comprise:
AS/NZS
4256 Plastic roof and wall cladding materials
4256.1 Part 1: General requirements
4256.2 Part 2: Unplasticized polyvinyl chloride (uPVC) building sheets (this Standard)
4256.3 Part 3: Glass fibre reinforced polyester (GRP)
Part 4: Unplasticized polyvinyl chloride (uPVC) wall cladding and boards*
Part 5: Polycarbonate*
Part 6: Acrylic*
These Standards are to be used in conjunction with the series of test methods for plastic building sheets which, when complete, will comprise:
AS/NZS
4257 Plastic roof and wall cladding materials—Methods of test
4257.0 Part 0: General introduction and list of methods
4257.1 Method 1: Determination of dimensional properties
4257.2 Method 2: Determination of dimensional stability at 605C
4257.3 Method 3: Determination of mass per unit area of sheet
4257.4 Method 4: Determination of diffuse light transmission
4257.5 Method 5: Determination of glass fibre content
4257.6 Method 6: Determination of impact resistance
4257.7 Method 7: Determination of colourfastness, light transmission and impact resistance following ultraviolet light exposure
4257.8 Method 8: Determination of residual styrene
Method 9: Determination of bending strength and modulus of elasticity*
It is issued as a Joint Standard under the terms of the Active Cooperation Agreement between Standards Australia and Standards New Zealand.
In New Zealand, technical requirements for building construction are contained in New Zealand Building Code and the Building Regulations. The following Code clauses are, or may be, relevant in respect to plastic building sheets: B1 Structure, C3 Spread of Fire, E2 External Moisture, E3 Internal Moisture, F2 Hazardous Buildings Materials, G7 Natural Light, H1 Energy Efficiency.
The term ‘informative’ has been used in this Standard to define the application of the appendix to which it applies. An ‘informative’ appendix is only for information and guidance.
First published as part of AS 2376.1-1980. AS 2920 first published 1987. AS 2376.1-1980 and AS 2920-1987 jointly revised, amalgamated and redesignated in part as Joint Standard AS/NZS 4256.2:1994.
This Standard specifies requirements for transparent, translucent and opaque, uncoated and coated uPVC sheets that are formed into profiles and primarily intended for use as a roof cladding sheet. In certain circumstances, the same material may be used as a wall cladding sheet.
NOTE: Methods for determining compliance with this Standard are given in Appendix A.
Contents:
1: Scope
2: Application
3: Referenced Documents
4: Definitions
5: Classification
6: Workmanship
7: Dimensional Requirements
8: Durability
9: Test Requirements
10: Marking
Appendix A: Means For Demonstrating Compliance With This Standard
Plastic Building Sheets.
Australian Building Codes Board; Australian Institute of Building Surveyors; Building Research Association of New Zealand; Composites Institute of Australia; CSIRO, Division of Building, Construction and Engineering, Australia; Housing Industry Association, Australia; Plastics and Chemicals Industry Association Australia; Plastics Institute of New Zealand; University of Adelaide; WorkCover Authority of N.S.W..
