SOUTH AFRICAN NATIONAL STANDARD

Transcription

1 ISBN SOUTH AFRICAN NATIONAL STANDARD The installation of glazing in buildings Published by SABS Standards Division 1 Dr Lategan Road Groenkloof Private Bag X191 Pretoria 0001 Tel: Fax: SABS

2 Table of changes Change No. Date Scope Foreword This South African standard was approved by National Committee SABS TC 59C, Construction standards Glazing in buildings, in accordance with procedures of the SABS Standards Division, in compliance with annex 3 of the WTO/TBT agreement. This document was published in December This document supersedes SABS 0137:2002 (edition 3.1). This document is referenced in the National Building Regulations and Building Standards Act, 1977 (Act No. 103 of 1977), and the National Road Traffic Act, 1996 (Act No. 93 of 1996). Reference is made in note 1 to clause 1 to the "relevant national legislation". In South Africa this means the National Building Regulations and Building Standards Act, 1977 (Act No. 103 of 1977). Annex A is for information only.

3 Contents Foreword 1 Scope Normative references Definitions Materials and components Dimensions Glass General Types Characteristics of certain types of glass Plastics General Types Characteristics of certain types of plastics Special glazing materials Cladding glass Leaded lights Copper lights Lead glass Glass bricks Fixing materials General-purpose putty Sealants Preformed strip materials Preformed compression-type gaskets Fixing materials for internal work Fire-resistant compounds Design and performance Heat General Thermal comfort Solar heat gain Total solar energy transmittance Thermal performance Solar control plastics glazing sheet materials Blinds and louvers Heat loss General Methods for improving thermal insulation Energy efficient glazing Condensation Room side condensation Interstitial condensation Exterior condensation

4 Contents (continued) 5.4 Thermal safety of glass Prevention of thermal cracks of glass Breakage evaluation Thermal expansion Glass Plastics glazing sheet materials Thermal conduction and isolation aspects General Multiple glazing Air-sealing of glazing Air-conditioned buildings Energy conservation Thermal movement of plastics glazing panes Sound insulation Factors affecting sound transmission Window size Material thickness Air space Resistance of wind loads General Determination of pane dimensions Bolt fixed structural glazing General Bolt fixing of glass in barriers General Bolt fixing of glass infill panels Base fixing of free standing glass barriers Toughened glass frameless doors and door assemblies General Exterior doors Interior doors Cantilever fin support fixings Toughened glass suspended assemblies Design Performance Balustrades General Two-edge support Mechanical fixings Glass floors Glass in furniture Fish tanks or underwater observation panels Resistance to water loading Loads produced by water Glass thickness selection

5 Contents (continued) 6.9 Plastics General Design consideration Design of hollow section plastics glazing sheet materials Use of wind loading graphs to determine thickness of solid plastics glazing sheet materials Exposure to fire and performance of glazing General Glass Plastics Frames Requirements for roof lights Roof glazing Safety and security General Identification of safety and security glazing material Glazing material for resistance to human impact Other safety glazing material Bullet-resistant glazing material Frames General Types Timber frames Metal frames Masonry and concrete frames Plastics frames Preparation Glazing methods and systems General Precautions Setting and location blocks Putty Flexible compounds Sealants Preformed adhesive strip material Structural glazing General Determination of sealant contact width (CW) Surfaces Surface preparation One-way vision Control of reflections in shop windows Marking of safety glazing