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NI-wide·Technical Booklet B Materials and Workmanship

This Technical Booklet, which takes effect on 1st July 2013, is one of a series that has been prepared by the Department of Finance and Personnel (the Department) for the purpose of providing practica

NI-wide·Technical Booklet B Materials and Workmanship

If the guidance in a Technical Booklet is followed there will be a presumption of compliance with the requirements of those Building Regulations covered by that guidance. However, this presumption can

NI-wide·Technical Booklet B Materials and Workmanship

The Building Regulations are made for specific purposes, primarily securing the health, safety, welfare and convenience of people and for the conservation of fuel and power. Standards and technical sp

NI-wide·Technical Booklet B Materials and Workmanship

Where this Technical Booklet makes reference to a named standard, the relevant version of the standard is the one listed in the Appendix. However, if this version has been replaced or updated by the i

NI-wide·Technical Booklet B Materials and Workmanship

The Construction Products Regulation (EU 305/2011) requires that construction products that are covered by a harmonised European product standard or conform to a European Technical Assessment should n

NI-wide·Technical Booklet B Materials and Workmanship

In this Part— "Harmful substances" includes fumes and vapours; and "Relevant work" means— (a) the erection of a building; (b) the structural alteration or extension of a building; (c) the provision of

NI-wide·Technical Booklet B Materials and Workmanship

In any relevant work— (a) the materials used shall— (i) be of a suitable nature and quality in relation to the purposes for and the conditions in which they are used; (ii) be adequately mixed and prep

NI-wide·Technical Booklet B Materials and Workmanship

Subject to paragraph (2), insitu foamed Urea formaldehyde shall not be used in the erection, structural alteration or extension of a building.

NI-wide·Technical Booklet B Materials and Workmanship

Insitu foamed Urea formaldehyde may be used for filling the cavity of a cavity wall having an inner leaf constructed of bricks or blocks, provided that it is—(a) suitable for such an application; and

NI-wide·Technical Booklet B Materials and Workmanship

It is the view of the Department that the requirements of regulation 23 in Part B will be met where – (a) materials are of a suitable nature and quality in relation to the purposes and conditions of t

NI-wide·Technical Booklet B Materials and Workmanship

To be of a suitable nature and quality, materials – (a) for use as the weather resisting part of an external wall or roof should not rely on being painted, or coated, surfaced or rendered with any oth

NI-wide·Technical Booklet B Materials and Workmanship

Regulation 23 in Part B applies across all of the substantive Parts of the Building Regulations. Regulation 23(b) in Part B limits the standards of materials and workmanship to be no more than necessa

NI-wide·Technical Booklet B Materials and Workmanship

The guidance in Section 2 is to provide aids which – (a) may be used for establishing the suitability of a material for use for a specific purpose; and (b) may be used to establish the adequacy of wor

NI-wide·Technical Booklet B Materials and Workmanship

Regulation 24(1) in Part B prohibits the use of Urea formaldehyde foam subject to the provisions of regulation 24(2) in Part B. It is the view of the Department that the requirements of regulation 24(

NI-wide·Technical Booklet B Materials and Workmanship

The guidance in this Section is to ensure reasonable precautions are taken to eliminate or reduce to an acceptable level, the permeation of toxic fumes into a building when Urea formaldehyde foam has

NI-wide·Technical Booklet B Materials and Workmanship

Harmful substances – has the meaning assigned to it by regulation 22 in Part B of the Building Regulations. Materials – has the meaning assigned to it by regulation 2 in Part A of the Building Regulat

NI-wide·Technical Booklet B Materials and Workmanship

BSI – The British Standards Institution, is the UK national standards body. BSI publishes European standards in the UK as BS EN. Further information is available at www.bsigroup.co.uk CEN – The Comit

NI-wide·Technical Booklet B Materials and Workmanship

NANDO – New Approach Notified and Designated Organisations is an information system produced by the European Commission. It lists the harmonised European standards and the bodies notified by member st

NI-wide·Technical Booklet B Materials and Workmanship

UKAS – the United Kingdom Accreditation Service is the sole national accreditation body recognised by the UK government to assess, against internationally agreed standards, organisations that provide

NI-wide·Technical Booklet B Materials and Workmanship

Technical Booklets contain references to materials covered by harmonised European product standards, British Standards and other technical specifications. However, as there is no obligation to adopt a

NI-wide·Technical Booklet B Materials and Workmanship

There are a number of ways in which the suitability of a material for use for a specific purpose may be assessed. The following are examples of ways which may be used for establishing this (see paragr

NI-wide·Technical Booklet B Materials and Workmanship

Many materials are construction products that have CE marking under the Construction Products Regulation (EU 305/2011). The Construction Products Regulation requires that construction products on the

NI-wide·Technical Booklet B Materials and Workmanship

Products may also be CE marked under European legislation, such as the Gas Appliances Directive or the Pressure Equipment Directive. Such CE marking shows that the product meets the essential requirem

NI-wide·Technical Booklet B Materials and Workmanship

Nearly all British Standards for construction products are the British versions of the harmonised European standards (ENs) used for CE marking. The BSI numbering policy is to adopt the CEN numbering,

NI-wide·Technical Booklet B Materials and Workmanship

An international technical specification, including those prepared by ISO, or a national technical specification of a country other than the UK, may be used to demonstrate that a product not covered b

NI-wide·Technical Booklet B Materials and Workmanship

The material has certified compliance under an independent certification scheme. There are many independent certification schemes in the UK and elsewhere that may provide information on the performanc

NI-wide·Technical Booklet B Materials and Workmanship

Where there is no relevant harmonised European standard, tests, calculation or other means may be used to demonstrate that the material can perform the function for which it is intended. UKAS or an eq

NI-wide·Technical Booklet B Materials and Workmanship

Past experience, such as in a building in use, may show that the material is capable of performing the function for which it is intended.

NI-wide·Technical Booklet B Materials and Workmanship

Regulation 16 in Part A allows a district council to take, as it considers necessary, samples of materials either used or to be used in building work, to establish if that material complies with the p

NI-wide·Technical Booklet B Materials and Workmanship

Some materials, in the absence of special care, may be considered unsuitable because of their rapid deterioration in relation to the expected life of the building. A shortlived material which is readi

NI-wide·Technical Booklet B Materials and Workmanship

Where a shortlived material is not readily accessible for inspection and maintenance or replacement and the consequences of failure are likely to be serious with regard to health or safety, it is unli

NI-wide·Technical Booklet B Materials and Workmanship

Some materials may undergo changes to their properties when they are exposed to certain environmental conditions which may affect their performance over time. Materials that are susceptible to change

NI-wide·Technical Booklet B Materials and Workmanship

Any material which is likely to be adversely affected by moisture from the ground, weather or condensation will be suitable if – (a) the construction will resist the passage of moisture to the materia

NI-wide·Technical Booklet B Materials and Workmanship

Any material in contact with the ground or in the foundations will be suitable if it is capable of resisting attacks by deleterious material in the subsoil such as sulfates.

NI-wide·Technical Booklet B Materials and Workmanship

The following are examples of ways which may be used to establish the adequacy of workmanship (see paragraphs 2.16 to 2.22).

NI-wide·Technical Booklet B Materials and Workmanship

If a material has CE marking, workmanship may be specified in the relevant European Technical Assessment or harmonised product standard.

NI-wide·Technical Booklet B Materials and Workmanship

Methods of carrying out different types of work are also given in British Standards or other appropriate technical specifications. (Note: the BS 8000 series of standards on Workmanship on building sit

NI-wide·Technical Booklet B Materials and Workmanship

Some independent certification schemes specify how workmanship will deliver a declared level of performance. The person carrying out the work should show that the workmanship will provide the appropri

NI-wide·Technical Booklet B Materials and Workmanship

The quality of workmanship is covered by a quality management scheme such as one that complies with the relevant recommendations of BS EN ISO 9000, and related series of standards. There are a number

NI-wide·Technical Booklet B Materials and Workmanship

Past experience of workmanship, such as in a building in use, may show that the method of workmanship is capable of performing the function for which it is intended.

NI-wide·Technical Booklet B Materials and Workmanship

Tests can be used to show that workmanship is appropriate. In the following two instances, the Building Regulations require those carrying out building work to have testing carried out to demonstrate

NI-wide·Technical Booklet B Materials and Workmanship

A district council has the power to require tests as prescribed in regulation 15 in Part A of the Building Regulations, to be carried out in relation to drains and private sewers as necessary, to esta

NI-wide·Technical Booklet B Materials and Workmanship

Regulation 16 in Part A allows a district council to take, as it considers necessary, samples of materials to be used in building work, to establish if the adequacy of workmanship relating to the use

NI-wide·Technical Booklet B Materials and Workmanship

Other than the circumstances outlined in 3.2 urea formaldehyde foam should not be used in the erection, structural alteration or extension of a building.

NI-wide·Technical Booklet B Materials and Workmanship

Foam insulating materials which give off formaldehyde fumes either when used or later in normal use, may be used to insulate the cavity in a cavity wall where there is a continuous barrier which will

NI-wide·Technical Booklet B Materials and Workmanship

A cavity wall which has been determined to be suitable for foam filling may be insulated with urea formaldehyde foam where – (a) the inner leaf of the wall is built of masonry (bricks or blocks); (b)

NI-wide·Technical Booklet B Materials and Workmanship

BS EN ISO 9000: 2005 Quality management systems. Fundamentals and vocabulary. BS EN ISO 9001: 2008 Quality management systems. Requirements. BS 5617: 1985 Specification for Ureaformaldehyde (UF) foam

NI-wide·Technical Booklet B Materials and Workmanship

BS 8000/12: 1989 Workmanship on building sites. Code of practice for decorative wallcoverings and painting. BS 8000/13: 1989 Workmanship on building sites. Code of practice for above ground drainage a