Protan Waterproofing Membrane for wetrooms, top membrane

Many prefer to have the membrane as high up in the structure as possible, preferably just under the tiles or slabs.


This solution has a very low profile height, and is suitable for both renovated and new buildings. The top membrane is glued onto a stable surface just below the tiles or slabs. This is a typical solution for the renovation of wetrooms, as it avoids drilling up the old concrete.

Byggebransjens våtromsnorm, BVN, (the building industry's wetroom standard) is a voluntary standard for the construction of both new and renovated wetrooms. A training course is required as the qualification for undertaking construction work according to this standard, which sets stricter requirements than the technical regulations in planning and building legislation.

Protan top membranes present several advantages

  • Even thickness of 1.5 mm
  • Good elongation at break
  • Documented long lifetime
  • Moisture-proof Sd = 20 m
  • No waiting time
  • Can be laid straight onto the floor - ready for tiling

Protan G Membrane for Wet Rooms

The Protan G membrane is used for wet room walls and floor.Waterproofing helps protect from damages caused due to humidity and seepage.

Protan Prefabricated details

Protan has one of the widest ranges of prefabricated details on the market, including details for corners, pipes and upstands.