1. Definition and diagram of an insulating system
The following terms are taken from the ISO, CEN and NF standards
cited in [Doc BE 9 859].
Thermal insulation system: a combination of two or more components,
at least one of which is an insulating product or material. The performance
of the system is the performance of the whole.
Thermal insulation: a material, product or system whose presence
reduces heat transfer through the wall on, or in, which it is placed.
It is characterized by its surface thermal resistance (expressed in
m2 · K · W –1).
Examplequantitative limits can only be established if applications are
defined. By convention, we consider that a material, product or system
intended for the building sector can be defined as thermal insulation
if the ratio of its thickness to its surface thermal resistance is...
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Definition and diagram of an insulating system