BS EN 14891 is the European standard on liquid applied water-impermeable products used in ceramic tiles.
BS EN 14891 specifies the assessment and verification of constancy of performance, and the
classification and marking of liquid-applied water-impermeable products beneath ceramic tiling.
BS EN 14891 gives the terminology concerning the products and specifies the test methods and the values of performance requirements for liquid-applied water-impermeable products associated with tile adhesives.
NOTE: BS EN 14891 applies to all liquid-applied water-impermeable products, based on polymer
modified cementitious mortars, dispersions and reaction resin coatings, used beneath ceramic tiling, for external tile installations on walls and floors and in swimming pools.
NOTE: BS EN 14891 does not contain recommendations for the design and installation of ceramic tiles and grouts in combination with water-impermeable products.
BS EN 14891 on ceramic tiles is useful for:
Ceramic products are of great relevance to the designer because they can be part of and provide
with solutions to all the building and decorative elements: structure, envelope, partitions and
floorings.
BS EN 14891 navigates you through the physical and mechanical characteristics of the liquid-applied water-impermeable products used in ceramic tiling.
BS EN 14891 specifies the verification and declaration on the release of dangerous substances as well as the testing and assessment methods and requirements for sampling.
BS EN 14891 provides AVCP with the compliance of liquid-applied water-impermeable products with the requirements and the performances of type testing and factory production control.
All weighing, measuring and testing equipment calibrated and regularly inspected according to BS EN 14891 documented procedures, frequencies and criteria.
Classification and designation of liquid-applied water-impermeable products are mentioned in BS EN 14891 along with the marking and labelling.
Overall, BS EN 14891 leads you through the right application of ceramic tiles with the proper physical and chemical qualities that result in the initial tensile adhesion strength after water immersion, heat ageing, and freeze-thaw cycles obtained. In this way, you may produce high-quality ceramic tiles that are durable, adaptable, and easy to install and maintain.
EN 14891:2017