Structural changes of stone wool exposed to outdoor climate

Tomas Vrana & Tomas Vrana
Stone-wool insulants in building envelopes are at risk due to their fibrous structure and a thickness of the insulation layer itself. Inbuilt moisture or condensate, that is accumulated during years, begin degradation of binding agents in time. A basic experiment observing changes in material structure when it is exposed to outdoor climate for a period of one year was realized in Nordic conditions. Everyday exterior temperatures, relative humidities, as well as, prevailing weather in Stockholm...
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