Installing underfloor heating with Tile & Stone Flooring
The Wunda Rapid Response® system is one of the only boards that you can tile directly to due to their high compressive strength. The board has been tested and approved by the leading brands; Mapei and Ultra when using their specified products and methods.
While the tiling adhesives or primers are not provided by Wunda, they can be sourced from local merchants or online.
The approved and tested products are:
- ‘Ultra Proflex S2’, when primed using ‘Ultra prime it multi surface primer’. Suitable for ceramic, porcelain or natural stone directly on to the boards.
- ‘Mapei Kerabond T’ mixed with Isolastic at a ratio of 100:33 Kerabond T to Isolastic, no primer required. When bonding natural stone with Mapei Kerabond T & Isolastic, it is recommended to use their approved renovation-screed first (5-10mm of Ultraplan renovations screed when primed with their eco prim grip).
It is possible to also use a de-coupling membrane when tiling to the surface of the boards, although not required, as the recommended adhesives are highly deformable. We still recommend using the approved adhesives when using a de-coupling membrane.
When grouting, any flexible grout can be used.
Please call in to confirm your floor finish with your Wunda project manager and also consult your floor finish provider.
Wunda’s Water Underfloor Heating Systems