The fibres in the Eisbart’s structure on truck roofs create a “spongy” complex that possesses a massive surface area. Water flows into it or the Eisbart is fully immersed in the water that has collected on top of the roof of the truck. When it freezes, the ice is firmly anchored many times over to each individual fibre contained within the massive Eisbart structure. This simple principle means that the Eisbart is able to securely hold the ice inside it even when the trucks are travelling at high speeds into strong headwinds or need to suddenly make an emergency stop.
And the melt water will just run off when temperatures start rising again and the ice begins to thaw. There’s no “aquaplaning” between the ice and the tarpaulin’s surface so the slabs of ice can’t slip on the melt water – the Eisbart’s structure continues to hold the remaining ice and slabs of ice in place. Only very small and light particles of ice that no longer pose a risk when they fall off remain at the end of the thawing