Thermal behaviour of stone wool cored sandwich panels during a fire
Fire resistant constructions act as compartment barriers keeping developed fires separate from other areas at risk such as office rooms, production areas, stock rooms, neighbouring buildings.
Sandwich panels with ROCKWOOL stone wool cores are relatively light building elements with an outstanding fire protection properties.
The metal sheets are very efficient vapour and gas barriers and do not ignite.
The adhesive is approximately 1% of the element and has a very limited impact within the first few minutes. After a few minutes the exposed metal sheet delaminates from the insulation core. Yet the sandwich panel remains stable.
The robust ROCKWOOL stone wool core stabilises the construction during the whole fire impact. Due to the high level of thermal resistance and density of the stone wool core, energy transfer through the panel is slowed down and therefore heating of the unexposed surface is delayed.
ROCKWOOL cores do not fuel fires and can maintain their integrity at high temperatures in excess of 1000°C. Only stone wool insulation cores can guarantee maximum prevention of fire spread and heat release, plus protection from intense and highly toxic smoke release.
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