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BS 4841-3:1994

Superseded
Superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

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superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

Rigid polyurethane (PUR) and polyisocyanurate (PIR) foam for building applications Specification for two types of laminated board (roofboards) with auto-adhesively bonded reinforcing facings for use as roofboard thermal insulation for built-up roofs
Available format(s)

Hardcopy , PDF

Superseded date

07-20-2006

Language(s)

English

Published date

01-15-1994

Committees responsible
Foreword
Specification
1. Scope
2. References
3. Definition
4. Construction and composition
5. Designation
6. Properties
7. Dimensions
8. Marking
Annexes
A. (normative) Method for the determination of areas
    of unbonded reinforcing facings
B. (normative) Method for the determination of
    dimensional stability in built-up roofing: roll and
    pour test
C. (normative) Method for the determination of
    dimensional stability in built-up roofing:
    temperature cycling test
D. (normative) Method for the determination of
    delamination strength in built-up roofing
E. (informative) Information for users and designers
F. (normative) Method for the determination of cohesive
    strength of roofboards
G. (informative) Burning characteristics of PUR and
    PIR foams and recommendations regarding their use
H. (informative) Information on the installation of
    roofboards into built-up roofs
Tables
1. Designation codes for thermal conductivity
2. Additional properties
3. Dimensional tolerances for lengths, widths and
    diagonals
4. Thickness tolerances
D.1 Stressing rates for method 2
E.1 Relationships between roofboard thickness and metal
    deck trough openings
Figures
A.1 Determination of area(s) of unbonded facings: cutting
    and marking of the test specimen
B.1 Marking pattern for test specimens used in the method
    described in annex B
D.1 Typical experimental arrangement for the delamination
    test: high rate of loading
List of references

Specifies requirements for the composition, construction, dimensional tolerances, designation, and physical properties of two types of polyurethane (PUR) and polyisocyanurate (PIR) foam cored thermally insulating laminated board (roofboards) with auto adhesively bonded reinforcing facings and cores not less than 20 mm thick, for use in roofs under built up bituminized felt roofing materials. Coverage includes designation and marking. Also includes annexes, tables and diagrams.

Committee
B/540
DevelopmentNote
Supersedes BS 4841-3(1987) & 92/46318 DC. (07/2005)
DocumentType
Standard
Pages
20
PublisherName
British Standards Institution
Status
Superseded
SupersededBy
Supersedes

PD 6686:2006 Guidance on directives, regulations and standards related to prevention of fire and explosion in the process industries
BS 8218:1998 Code of practice for mastic asphalt roofing
BS 8217:2005 Reinforced bitumen membranes for roofing. Code of practice
BS 6229:2003 Flat roofs with continuously supported coverings. Code of practice

BS CP3:CH5-2(1972) : AMD 7908 CODE OF BASIC DATA FOR THE DESIGN OF BUILDINGS - LOADING - WIND LOADS
BS CP144-3(1970) : AMD 5229 ROOF COVERINGS - BUILT UP BITUMEN FELT. METRIC UNITS
BS 1610-2:1985 Materials testing machines and force verification equipment Specification for the grading of equipment used for the verification of the forces applied by materials testing machines
BS 4735:1974 Laboratory method of test for assessment of the horizontal burning characteristics of specimens no larger than 150 mm x 50 mm x 13 mm (nominal) of cellular plastics and cellular rubber materials when subjected to a small flame
BS 1142:1989 Specification for fibre building boards
BS 6399-1:1996 LOADING FOR BUILDINGS - PART 1: CODE OF PRACTICE FOR DEAD AND IMPOSED LOADS

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