Regulation 7 - Materials and Workmanship Document Regulation.pdf

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DTLR
T RANSPORT
L OCAL G OVERNMENT
R EGIONS
The Building Regulations 2000
Materials and workmanship
APPROVED DOCUMENT
to support regulation 7
The Stationery Office
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MAIN CHANGES IN THE 1999
EDITION
This edition of the Approved Document for
regulation 7: Materials and workmanship replaces
the 1992 edition. The main changes are:
a. Regulation 7: Regulation 7 has been redrafted
to make it a functional requirement, which is in line
with the functional requirements in the rest of the
Building Regulations. The detail that was formerly in
regulation 7(2) has been removed, as it is felt that
such detailed guidance should be in the Approved
Document and not in the regulation itself.
b. Recycled and recyclable materials: Specific
mention is made of the environmental impact of
building materials, and the use of recycled and
recyclable materials.
c. European Technical Approval Issuing Bodies:
References in the previous edition of this Approved
Document to Agrément Certificates have been
replaced by references to the above. A definition is
given, together with a note of where a listing may
be found.
d. British Standards: There is a new section,
headed British Standards, which deals with the way
that British Standards are being transposed into
European standards, and how they should be
treated during the transition period.
e. Sampling: The text under the heading of
Sampling has been expanded to clarify the fact that
the powers of regulation 17, by which local authori-
ties can take samples of materials for
testing, do not extend to approved inspectors.
f. High alumina cement: The paragraph in the
last edition on high alumina cement has been
replaced by a new paragraph entitled “Materials
susceptible to changes in their properties”. This is
wider reaching, with examples of some materials
which can undergo changes under certain
environmental conditions. The new section reflects
the fact that such materials are acceptable, provided
that their residual properties can be estimated and
can be shown to be adequate for the intended
performance of the building.
g. House longhorn beetle: The section on the
house longhorn beetle in the previous edition of this
Approved Document has been deleted as it was not
considered to be appropriate in this context of guid-
ance on materials. This will be incorporated in the
revised Approved Document for Part A which is
being developed and should be published within the
next two years. In the interim, the advice in the
1992 edition of this Approved Document with regard
to the house longhorn beetle should still be consid-
ered as applicable.
h. Testing: The text under the heading of Tests
has been expanded to reflect the fact that the
powers to test sewers and drains that are
conferred on local authorities by regulation 16 do
not extend to approved inspectors.
Materials and workmanship
Approved Document
REGULATION 7
Contents
PAGE
USE OF GUIDANCE
2
MATERIALS AND WORKMANSHIP
THE REQUIREMENT: REGULATION 7
3
GUIDANCE
Performance
3
Section 1: Materials
4
Ways of establishing the fitness of materials
4
British Standards
4
Other national and international
technical specifications
4
Technical approvals
4
CE marking
4
Independent certification schemes
5
Tests and calculations
5
Past experience
5
Sampling
5
Short-lived materials
5
Materials susceptible to changes in their
properties
5
Resistance to moisture
6
Resistance to substances in the subsoil
6
Section 2: Workmanship
7
Ways of establishing the adequacy
of workmanship
7
Standards
7
Technical approvals
7
Management systems
7
Past experience
7
Tests
7
Appendix A: Abbreviations and glossary
8
Appendix B: Standards referred to in this
document
10
DIAGRAM
1. CE marking
5
Approved Document
Materials and workmanship
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REG 7
THE BUILDING REGULATIONS 2000
Use of Guidance
THE APPROVED DOCUMENTS
The Building Regulations 2000 (S.I. 2000/2531),
which come into operation on 1st January 2001,
replace the Building Regulations 1991 (S.I.
1991/2768) and consolidate all subsequent
revisions to those regulations. This document is
one of a series that has been approved and issued
by the Secretary of State for the purpose of
providing practical guidance with respect to the
requirements of Schedule 1 to and regulation 7 of
the Building Regulations 2000 for England and
Wales.
At the back of this document is a list of all the
documents that have been approved and issued
by the Secretary of State for this purpose.
Approved Documents are intended to provide
guidance for some of the more common building
situations. However, there may well be alternative
ways of achieving compliance with the
requirements. Thus there is no obligation to
adopt any particular solution contained in an
Approved Document if you prefer to meet the
relevant requirement in some other way.
The Department intends to issue periodic
amendments to its Approved Documents to reflect
emerging harmonised European Standards. Where
a national standard is to be replaced by a
European harmonised standard, there will be a
co-existence period during which either standard
may be referred to. At the end of the co-existence
period the national standard will be withdrawn.
Other requirements
The guidance contained in an Approved Document
relates only to the particular requirements of the
Regulations which the document addresses. The
building work will also have to comply with the
Requirements of any other relevant paragraphs in
Schedule 1 to the Regulations.
There are Approved Documents which give
guidance on each of the Parts of Schedule 1.
Technical specifications
Building Regulations are made for specific
purposes: health and safety, energy conservation
and the welfare and convenience of disabled
people. Standards and technical approvals are
relevant guidance to the extent that they relate to
these considerations. However, they may also
address other aspects of performance such as
serviceability, or aspects which although they relate
to health and safety are not covered by the
Regulations.
When an Approved Document makes reference to a
named standard, the relevant version of the
standard is the one listed at the end of the
publication. However, if this version has been
revised or updated by the issuing standards body,
the new version may be used as a source of
guidance provided it continues to address the
relevant requirements of the Regulations.
The appropriate use of a product which complies
with a European Technical Approval as defined in
the Construction Products Directive will meet the
relevant requirements.
Materials and workmanship
Approved Document
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REGULATION 7
The Requirement
This Approved Document deals with regulation 7 of
the Building Regulations 2000.
Materials and workmanship
7.
Building work shall be carried out -
(a) with adequate and proper materials which -
(i) are appropriate for the circumstances in which they are used;
(ii) are adequately mixed or prepared; and
(iii) which are applied, used or fixed so as adequately to perform the functions for which they are
designed; and
(b) in a workmanlike manner.
Note: Attention is drawn to the requirements of
regulation 8 (Limitation on requirements) of the
Building Regulations 2000:
“8. Parts A to K and N of Schedule 1 to these
regulations shall not require anything to be done
except for the purpose of securing reasonable
standards of health and safety for persons in or
about buildings (and any others who may be
affected by buildings or matters connected with
buildings)”.
Guidance
Performance
0.1 In the Secretary of State’s view the
requirements of regulation 7 will be met where
materials are:
a. of a suitable nature and quality in relation to
the purposes and conditions of their use,
and the workmanship is such that
b. where relevant, materials are adequately
mixed or prepared, and
c. applied, used or fixed so as to perform
adequately the functions for which they are
intended.
Materials include products, components, fittings,
naturally occurring materials e.g. stone, timber and
thatch, items of equipment, and backfilling for
excavations in connection with building work.
0.2 Environmental impact of building work
The environmental impact of building work
can be minimised by careful choice of
materials, and where appropriate the use of
recycled and recyclable materials should be
considered. The use of such materials must
not have any adverse implications for the
health and safety standards of the building
work.
0.3 Limitations
For parts A to K and N of Schedule 1, the
standards of materials and workmanship need
be no more than are necessary to secure
reasonable standards of health or safety for
persons in or about the building.
For parts L and M of Schedule 1, the
standards of materials and workmanship need
be no more than are necessary to conserve
fuel and power and to provide access and
facilities for disabled people respectively.
0.4 Continuing control
There are no provisions under the Building
Regulations for continuing control over the
use of materials following the completion of
building work. It should be noted that Section
19 of the Building Act 1984 enables local
authorities to impose conditions with regard
to prescribed materials where it is proposed
to construct a building of short-lived
materials, notwithstanding that the plans
conform with the Regulations. However, this
Section has no effect at present, as no
materials are currently prescribed for its
purpose.
Approved Document
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