Neuchâtel Precon & Mel-Rol Tanking

Neuchâtel Tanking is a BRANZ-appraised system with two different membranes: PRECON for under-slab, and MEL-ROL for vertical applications. PRECON is a composite sheet membrane with the lowest water-vapour transmission on the market. MEL-ROL is a self-adhesive membrane that’s extremely flexible, versatile and quick to install.


PRECON is a composite sheet membrane comprised of a non-woven fabric, elastomeric membrane, and W. R. MEADOWS’ exclusive, patented plasmatic core (U.S.Patent No.7,179,761). The plasmatic core is a seven-layer matrix designed for toughness and provides the lowest water vapor transmission (WVT) rating on the market. Once the concrete is poured against PRECON and the concrete cures, mechanical bond forms that secures the concrete to the membrane.

PRECON is used as a blindside membrane in vertical applications where access to the positive side is limited. The membrane can also be used for horizontal applications for under slab waterproofing, gas and vapour proof.



MEL- ROL is a self-adhesive waterproofing membrane. Which is very Flexible, versatile and dependable waterproofing membrane. It is composed of a nominally 56 mil thick layer of polymeric waterproofing membrane on a heavy duty, 4mm thick, cross-laminated polyethylene carrier film.

The handy overlap guideline is printed 65mm in from the material edge on each side to assure proper overlap coverage and to assist in maintaining a straight application. Special exposed polymeric membrane strips are provided on both sides for positive membrane-to-membrane adhesion in the overlap area. The membrane strips are protected by a pull-off release strip.

All components of the MEL-ROL waterproofing system work together to provide a cost-effective, positive waterproofing system that’s quick and easy to apply.


Neuchâtel Tanking Detail Drawings, Technical Data Sheets & BRANZ Appraisal

Tanking Drawings


Let’s talk about waterproofing your project.

Call Neuchâtel for a chat on 021 840 660 or email