Sika presents its latest innovation in structural waterproofing; a fully bonded, highly flexible membrane system. The SikaProof® A membrane system is designed to be used for basement waterproofing on new constructions and for renovation work. The membrane system is applied before installation of steel reinforcement and before the fresh concrete is poured.
In contrast to existing membrane systems, SikaProof® A is fully bonded to the cured concrete. Its layer of special designed fleece forms a mechanical bond after hardening of the structural concrete.
The sealant in a grid pattern forms “mini” watertight compartments which limits the water underflow if the membrane is damaged or punctured. Because of this sealant grid, moisture or pressured water cannot pass between the membrane and the concrete structure. Compare to non-fully bonded systems, the risk of leaks in basement is strongly reduced due to limited area of potential water migration.
Another major advantage is in the way that the individual sheets of SikaProof® A membranes are connected to each other. Instead of time-consuming and complicated welding (the procedure normally used to connect loose laid membrane sheets) SikaProof® A sheets are joined using either the adhesive strip which runs along the longitudinal edge of every sheet or by fastening them together with specially designed self-adhesive tapes. This quick and easy system for adhering sheets is also very cost-effective as it increases dramatically the speed of application and eliminates the need for expensive welding machinery. Furthermore, with no open flames, there is increased safety on-site and because of no full surface release liner, less waste will be created compare to all type of peel-and-stick membranes. This saves no only additional costs for wastage but also raw material – for a more sustainable world.
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