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BS 7021:1989

Withdrawn
Withdrawn

A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.

Code of practice for thermal insulation of roofs externally by means of sprayed rigid polyurethane (PUR) or polyisocyanurate (PIR) foam
Withdrawn date

02-01-2024

Published date

30-06-1989

Foreword
Committees responsible
Code of practice
0. Introduction
1. Scope
2. Definition
3. Composition and designation
4. Thermal performance of installed foam
5. Insulation of existing roofs
6. Insulation of new roofs
7. Primers and vapour check coatings
8. Foam application procedure
9. Protective membranes
10. Health and safety aspects
11. Fire performance
Appendices
A. Method for determining the on-site adhesive strength
    of sprayed rigid PUR or PIR foam
B. Method for the on-site determination of overall
    foam density
Figures
1. Characteristic sprayed foam surface texture:
    smooth
2. Characteristic sprayed foam surface texture:
    orange peel
3. Characteristic sprayed foam surface texture:
    pop corn
4. Characteristic sprayed foam surface texture:
    tree bark
5. Typical self-adhesive force applicator

Procedure for applying foam externally as thermal insulation to roofs and tanks.

Committee
PRI/72
DevelopmentNote
Supersedes 86/43894 DC & 92/46320 DC. (09/2005) Reviewed and confirmed by BSI, November 2012. (10/2012)
DocumentType
Standard
PublisherName
British Standards Institution
Status
Withdrawn
Supersedes

12/30147224 DC : 0 BS 5970 - THERMAL INSULATION OF PIPEWORK, DUCTWORK, ASSOCIATED EQUIPMENT AND OTHER INDUSTRIAL INSTALLATIONS IN THE TEMPERATURE RANGE OF -100 DEGREES C TO +870 DEGREES C - CODE OF PRACTICE
BS 6229:2003 Flat roofs with continuously supported coverings. Code of practice
BS 5241-1:1994 Rigid polyurethane (PUR) and polyisocyanurate (PIR) foam when dispensed or sprayed on a construction site Specification for sprayed foam thermal insulation applied externally
BS 5918:2015 Solar heating systems for domestic hot water. Code of practice for design and installation
BS 5970:2001 Code of practice for thermal insulation of pipework and equipment in the temperature range of -100°C to +870°C
BS 5970:2012 Thermal insulation of pipework, ductwork, associated equipment and other industrial installations in the temperature range of -100°C to +870°C. Code of practice
13/30274184 DC : 0 BS 5918 - SOLAR HEATING SYSTEMS FOR DOMESTIC HOT WATER - CODE OF PRACTICE

BS 5493:1977 Code of practice for protective coating of iron and steel structures against corrosion
BS CP143-10(1973) : 1973 CODE OF PRACTICE FOR SHEET ROOF AND WALL COVERINGS - CODE OF PRACTICE FOR SHEET ROOF AND WALL COVERINGS - GALVANIZED CORRUGATED STEEL - METRIC UNITS
BS CP143-1(1958) : 1958 CODE OF PRACTICE FOR SHEET ROOF AND WALL COVERINGS - ALUMINIUM, CORRUGATED AND TROUGHED
BS 1088 & 4079:1966 Specifications for plywood for marine craft
BS 5241-1:1989 Rigid polyurethane (PUR) and polyisocyanurate (PIR) foam when dispensed or sprayed on a construction site Specification for sprayed foam thermal insulation applied externally
BS 476-3:1975 Fire tests on building materials and structures External fire exposure roof test
BS 5669:1979 Specification for wood chipboard and methods of test for particle board
BS CP3:CH5-2(1972) : AMD 7908 CODE OF BASIC DATA FOR THE DESIGN OF BUILDINGS - LOADING - WIND LOADS
BS 1142-3:1972 Specification for fibre building boards Insulating board (softboard)
BS 6566-8:1985 Plywood Specification for bond performance of veneer plywood

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