White salts brought to the surface of porous building materials by water movement
Efflorescence
Crystallisation of salts on the surface of a mortar. (EN 13318).
Expanded clay
Lightweight granular material used for insulation purposes having a cellular structure formed by expanding clay minerals by heat. (EN ISO 9229)
External thermal insulation composite systems (ETICS)
An onsite applied system of factory made products, comprising, as a minimum, adhesive mortar and/or mechanical fixing devices, thermal insulation material, one or more layers of a base coat, reinforcement, and finishing coat. The components are inseparable.
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