From Realtà Mapei International n° 87 - 8/27/2021
In March 2019, at the MADE trade fair in Milan, Mapei presented for the first time their fully-bonded waterproofing membrane, MAPEPROOF FBT, which generated a great deal of interest amongst sector operators.
The membrane, consisting of a layer of synthetic FPO firmly sandwiched to a layer of non-woven fabric, was developed to waterproof reinforced concrete foundations. Once concrete has been poured, the membrane adheres monolithically to the concrete and remains bonded over time, impeding lateral migration of water between the foundation structure and the membrane. In so doing, MAPEPROOF FBT forms a highly effective barrier against groundwater, moisture in the ground, radon gas and methane.
And thanks to the waterproofing tapes MAPEPROOF FBT TAPE 600 and MAPEPROOF SA TAPE, Mapei offers a proven waterproofing system that has demonstrated its effectiveness.
Besides being launched in other countries, the membrane was tested on the Swiss market where the Group's subsidiary, Mapei Suisse, introduced MAPEPROOF FBT in 2019 to widespread acclaim. Over the course of the last two years it has been installed on more than 270,000 m2 of surfaces: at the Swiss Life Arena site in Zurich, in the eco-neighbourhood of Marly and in the swimming pool in Appenzell, as well as in entire neighbourhoods, such as the Glasi district in Bülach and the Dietlimoos district in Adliswil. Mapei followed all these projects very closely and provided technical support both when choosing which system to use and when actually installing the system.
We interviewed the engineer Philipp Truffer, owner of the engineering consulting company Truffer Ingenieurberatung AG and member of the Commission on Waterproofing Standards of the Swiss Society of Engineers and Architects (SIA).
Why should you use fully-bonded membranes?
A waterproofing membrane fully-bonded to fresh, poured concrete is thought of as an emergency solution for “white tank” systems. With white tank systems, it is not possible to exclude the possibility of localised leakage in advance, which then need to be waterproofed by injection.