Foreword

ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing International Standards is normally carried out through ISO technical committees. Each member body interested in a subject for which a technical committee has been established has the right to be represented on that committee. International organizations, governmental and non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization.

The procedures used to develop this document and those intended for its further maintenance are described in the ISO/IEC Directives, Part 1. In particular, the different approval criteria needed for the different types of ISO document should be noted. This document was drafted in accordance with the editorial rules of the ISO/IEC Directives, Part 2 (see www.iso.org/directives).

ISO draws attention to the possibility that the implementation of this document may involve the use of (a) patent(s). ISO takes no position concerning the evidence, validity or applicability of any claimed patent rights in respect thereof. As of the date of publication of this document, ISO had not received notice of (a) patent(s) which may be required to implement this document. However, implementers are cautioned that this may not represent the latest information, which may be obtained from the patent database available at www.iso.org/patents. ISO shall not be held responsible for identifying any or all such patent rights.

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For an explanation of the voluntary nature of standards, the meaning of ISO specific terms and expressions related to conformity assessment, as well as information about ISO's adherence to the World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT), see www.iso.org/iso/foreword.html.

This document was prepared by Technical Committee ISO/TC 163, Thermal performance and energy use in the built environment, Subcommittee SC 3, Thermal insulation products, components and systems.

Any feedback or questions on this document should be directed to the user’s national standards body. A complete listing of these bodies can be found at www.iso.org/members.html.

1 Scope

This document specifies the requirements for factory-made thermal insulating products containing one or more reflective or low-emissivity surface components, and designed to be used in conjunction with an incorporated air space, for the thermal insulation of buildings.

This document specifies products manufactured in the form of rolls, boards and sheets, and also covers products that are used in prefabricated thermal insulation systems and composite panels. Such prefabricated systems and composite panels are not within the scope of this document. The products specified in this document are not intended for use in load-bearing applications.

This document does not specify the required level of a given property to be achieved by a product to demonstrate fitness for purpose in an application. The levels of performance required for a given application are to be found in project specifications.

2 Normative references

3 Terms and definitions

4 Symbols, units and abbreviated terms

4.1 Symbols and units

4.2 Abbreviated terms and symbols used in designations

5 Requirements

5.1 General

5.2 Sampling

5.3 Preparation

5.4 Conditioning

5.5 Detailed requirements

6 Durability requirements

6.1 Durability of emissivity

6.2 Durability of thermal resistance against ageing/degradation

6.3 Hygrothermal requirements

6.4 Reflective layer durability

6.5 Mildew resistance requirements

6.6 Closed cell content requirements

7 Test methods

8 Designation code

9 Evaluation of conformity

9.1 General

9.2 Initial type testing

9.3 Factory production control

9.4 Outer appearance

10 Marking and labelling

Bibliography