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The article deals with setting of the degradation of fibre-cement panels containing polyvinyl-alcohol (PVA) fibres. The degradation is being studied with a help of a soaking ? drying test. It is a long-time test, which is one of the series of tests (hot water test, frost resistance test, shrinking of panels, UV test), by which the degradation of panels is determined. The motivation for carrying out this test lies in searching for a substitute of asbestos-cement panels that cannot be used due to carcinogenic asbest...