ISO TR 9774:1990 download free.Thermal-insulation materials — Application categories and basic requirements — Guidelines for the harmonization of International Standards and other specifications.
1. SCOPE
1.1 This Technical Report lists common applications for thermal insulating products for insulating of buildings and gives guidance on the selection of minimum performance characteristics.
This Technical Report is intended to serve as a background document for standardization and to assist in the harmonization of specifications for thermal insulating products of different origin.
This Technical Report is not intended to serve as a guide to users or producers to prove the suitability of any particular product or any given application.
The product properties listed for each application are expressed as minimum performance characteristics, which shall be maintained during the expected service life of the insulation within the structure*).
1.2 When standards or specifications are established or existing standards are revised on the basis of this Technical Report, the minimum performance characteristics of this Technical Report should in the standards or specifications be translated into product requirements (specified values) together with appropriate test methods, which must be fulfille4 at the time of delivery, in order to ensure that the product fulfills the performance requirements in service. This relationship between specified values for the product and the service performance characteristic of the product in use can be different for different insulatihg products, depending on the characteristic of the material (e.g. aging or time—dependent behaviour). Not each basic requirement needs to be specified in each product standard, if it is obvious
— that certain requirements are always fulfilled
— that several requirements can be covered by one specified property.
1.3 This Technical Report applies only to prefabricated thermal insulating products. Products are any manufactured mats and board. including any facings or coverings, which may be present. The basic characteristics may also be applied to other insulation products, e.g. in situ, in systems or components, where appropriate.
The Technical Report cover, only thermal inaulating product. for use in buildings within normal climatic conditions. It does not cover insulating products for building services, e.g. plumbing, heating and not for industrial use.
Acoustic properties are not included in the properties given in this Technical Report, although these may be additionally required for some application fields.
2 • REFERENCE DOCUMENTS
ISO/Tn 915S 1988, rractical thermal properties of buUdSng materials and products.
3. APPLICATIONS OF THERMAL INSULATING PRODUCTS IN BUILDINGS
A review of the most common applications of thermal insulating products in different structures of roofs, walls, ceiling. and foundations is given in Table 1. The applications are illustrated in more detail in Figure 1.
The purpose of Figure 1. i only to illustrate the application, for the various insulating products and to assist in relating the performance characteriatios for the products to their application. The Figure will also assist in determining requirements for other applications not listed.
The eketches are for illustration only and are not intended as construction drawings, for example water vapour barriers and air infiltration barriers which may be necessary, are not shown.
Waterproofing. in the roof or foundation area are only shown to clarify the position of the insulation layer — in the area affected by precipi—
tation water or ground water or in the area protected against the penetration of water.
4 • PERFORMANCE CHARACTERISTICS OF PRODUCTS ACCORDING TO THEIR APPLICATION
Table 2 lists those properties — according to different applications — which need to be considered when preparing standards and specifications for different products. The performance characteristics for these properties to ensure a serviceable and durable thermal insulation axe explained and some values are suggested in Table 3.
Derived from Table 2, Table 2a gives basic necessary properties for thermal insulations in any application, while Table 2b gives specific properties whiCh may be also necessary only for certain applications.
For additional applications in building not shown in Figure 1, the properties for the insulating products are to be determined accordingly.
Necessary properties for insulating products used in construction. or components which are characterized by two or more applications according to Figure 1 are derived from all relevant required properties.
For certain insulating materials, further properties other than those listed can be decisive for a durable behaviour-during service, e.g. the stability to the action of adhesives, of solvents or of temperature. The product specification should then deal with these additional properties.
For certain constructions the knowledge of the water vapour permeability rate and the air permeability is necessary. The values for these should be dealt with in the product specifications.
5. .PPLICATtON CATEGORIES
For simplicity the various applications for insulating products shown in Figure 1 may be grouped into categories having Common performance requirements. It is than the task of the insulating material standards or specifications to determine these categories and the applications which are covered by these categories.