Waterproofing
Waterproofing is a ‘yes or no’ proposition: there is no such thing as a partially waterproof flat roof. And the material almost never fails. It is the detail that fails: the joint, the primer that didn’t match the substrate, the membrane cut to 5 centimetres instead of 10. That is why the choice starts with the substrate and the location, not with the roll: bituminous membrane where a blowtorch is permitted, self-adhesive or liquid-applied membrane where it is not, synthetic on large or exposed flat roofs, and cementitious mortar where water is pressing from the negative side. Primer, membrane and accessories must function as a single system. Trade supply with technical support: bituminous, synthetic and liquid-applied membranes, cementitious mortars and joint sealants, with a declaration of performance and CE marking, primer–membrane compatibility testing, quantity calculations and nationwide delivery to the construction site.
Subcategories (6)

Bituminous products
Bituminous membrane is the most established waterproofing material available — and, at the same time, the one with the g...

Synthetic membranes
Polymer plastic membranes are materials with very strong elastic properties; however, they require a very good understan...

Liquid-applied membranes
No joints, no overlaps, no points of failure — but with absolute dependence on the thickness actually applied. That is w...

Pitched roof waterproofing and insulation
A pitched tiled roof is not made watertight by the tiles — it is made watertight by the membrane beneath them. Breathabl...

Cementitious waterproofing mortars
These are the only waterproofing products that work from the inside as well. When water pushes into the space — a baseme...

Joint sealing and waterstops
The joint is the only part of a waterproofing system that is designed to move. All other materials are required to remai...
Solutions by Application
Technical solutions that use materials from this category.
- Cementitious waterproofing mortarsBathroom & Kitchen Waterproofing System with CERESIT ProductsView the solution
- Synthetic membranesConstruction of an external waterproof basement envelopeView the solution
- WaterproofingGuide to Waterproofing Planters: How to Stop Water and Roots?View the solution
- Pitched roof waterproofing and insulationHow do I insulate my roof?View the solution
- Liquid-applied bituminous coatingsInverted Roof: Thermal insulation above the waterproofingView the solution
- Bituminous waterproofing accessoriesRoof Vent — Installation on a Flat Roof with Thermal Insulation and Bituminous MembraneView the solution
