Committees responsible for this British Standard

The preparation of this British Standard was entrusted by Technical Committee B/520, Glass and glazing in building, to Subcommittee BA520/4, Properties and glazing methods, upon which the following bodies were represented:

British Adhesives and Sealants Association

British Plastics Federation

British Woodworking Federation

Consumer Policy Committee of BSI

Council for Aluminium in Building

Flat Glass Manufacturers’ Association

Glass and Glazing Federation

Nottingham University

Office of the Deputy Prime Minister — Building Division

Office of the Deputy Prime Minister — represented by the BRE

RICS Building Control Forum

Co-opted members

Foreword

This part of BS 6262 has been prepared under the direction of Subcommittee B/520/4, Properties and glazing methods. It partially supersedes BS 6262:1982, which will be withdrawn upon publication of all seven parts of the newly revised and restructured BS 6262. BS 6262:1982 is being revised and restructured to simplify its use and will be published in seven parts:

Part1: General methodology for the selection of glazing;
Part2: Code of practice for energy, light and sound;
Part3: Code of practice for fire, security and wind loading;
Part4: Code of practice for safety related to human impact;
Part5: Code of practice for frame design considerations;
Part6: Code of practice for special applications;
Part7: Code of practice for provision of information.

Requirements for standards of workmanship for glazing have been published separately as BS 8000‑7 and therefore this subject is not dealt with in this standard.

Since the correct selection of materials to be used in glazing for buildings depends on many factors, the recommendations in this part of the standard should be used in conjunction with those in the other parts.

As a code of practice, this British Standard takes the form of guidance and recommendations. It should not be quoted as if it were a specification and particular care should be taken to ensure that claims of compliance are not misleading.

This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application.

Compliance with a British Standard does not of itself confer immunity from legal obligations.

Summary of pages

This document comprises a front cover, an inside front cover, pages i and ii, pages 1 to 25 and a back cover.

The BSI copyright notice displayed in this document indicates when the document was last issued.

1 Scope

This part of BS 6262 gives information and recommendations for vertical glazing in the external walls and interiors of buildings, with respect to their effect on the energy, light and sound environments in the building.

These recommendations do not apply to:

patent glazing (see BS 5516‑1):
glass in non-vertical applications (see BS 5516‑2):
glazing for furniture and fittings (see BS 7376 and BS 7449):
glazing for commercial greenhouses (see BS 5502‑21):
glazing for domestic greenhouses.

Requirements for standards of workmanship for glazing have been published separately as BS 8000‑7 and therefore this subject is not dealt with in this standard.

2 Normative references

3 Terms and definitions

4 Energy

4.1 General

4.2 Thermal comfort

4.3 Solar energy gain

4.4 Total solar energy transmittance

4.5 Energy loss

4.6 Condensation

4.7 Energy balance

4.8 Thermal safety of glass

4.9 Thermal expansion

5 Light

5.1 Daylighting

5.2 User requirements from daylight

5.3 Light transmission properties of windows

5.4 Glazing properties and their influence on daylight quantity and quality

5.5 Glare

5.6 Diffusion and obscuration

5.7 Fading

5.8 One way vision

6 Sound

6.1 Introduction

6.2 Source of noise

6.3 Specification of acoustic performance

6.4 Acoustic indices

6.5 Sound reduction of a single glass pane

6.6 Sound reduction of insulating glass units and secondary glazing

6.7 Sound insulation of plastic glazing sheets

Bibliography

BS 6262-2:2005

Glazing for buildings - Code of practice for energy, light and sound

Current

Published:

14 Oct 2005