faq
Can moisture-resistant WPC be used in standing water?
Do not assume so. Water uptake depends on the formulation, exposed edges and test conditions. Use the manufacturer’s permitted exposure and installation details; moisture-resistant does not mean impermeable.
Do not infer that from a moisture-resistant description. Check the manufacturer’s permitted exposure, installation details and warranty exclusions for the exact board. Drainage, ventilation, cut ends and fixings remain relevant. Use in standing water or permanent submersion requires explicit product-specific suitability; a decking application above water is a different exposure.