Technical
Can I tile directly to plaster in a shower area?
Plaster, plasterboard and exterior grade plywood are not generally considered to be suitable for wet areas. In installations subject to occasional wetting however, such as standard domestic shower cubicles or shower heads positioned over a bath where the installation has time to dry out between use, tiles may be fixed directly to these substrates providing that a suitable adhesive and grout are used.
It should be noted that the use of ceramic tiles and even a waterproof grout can not be guaranteed to totally eliminate the ingress of water to the underlying substrate. Minor defects in workmanship and movement in the structure can result in fissures through which water can pass. The application of a liquid applied tanking membrane such as Johnson Waterproofing Membrane or Norcros Wet Seal prior to tiling will prevent the passage of water.
In power showers and more frequently used installations the application of a tanking membrane to these substrates is considered to be essential.
For free technical advice on the Norcros and Johnsons product ranges please call 0870 609 2851 or click here to email. |