Civil Engineering Reference
In-Depth Information
Modern lime-based render systems, such as the breath-
able external render used here, are easy to apply but
more costly than a simple lime-sand render.
Tadelakt is an attractive natural lime-based waterproof finish, made from a particular type
of limestone found in the foothills around Marrakech. The technique of applying and fin-
ishing tadelakt, including polishing the surface with stone, creates a beautiful waterproof
plaster that can be used to finish baths, showers, sinks and wet rooms. Being a lime-based
material, it sits well alongside the other natural materials within a hempcrete house.
The application of tadelakt is highly specialist, and we would recommend seeking advice
from a professional experienced in its use. It is also possible to take a course in its applic-
ation. When applying tadelakt to hempcrete walls or floors, we advise first finishing the
hempcrete with a normal lime plaster or screed, to ensure a firm background, and then ap-
plying the tadelakt over this.
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