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Horizontal waterproofing beneath walls in new construction is required to avoid rising moisture due to capillary action in masonry or concrete. For this application, many KOSTER products can be used. KOSTER NB 1 Grey (mixed with KOSTER NB 1 Flex), or the crack bridging waterproofing material KOSTER NB Elastic Grey are used.
Always adhere to the specifications in the respective Technical Guidelines.
