Dual system approach: BS 8102:2009 suggests consideration be given to the use of dual systems. For example, Type A plus Type B protection where the assessed risks are deemed to be high or the consequences of a failure to achieve the required internal environment are too high.

Hanson is able to offer a complete solution in these circumstances by providing the Hanson Watertight Concrete system together with the SikaProof® fully bonded membrane  system. 


All the benefits of the silver offering, plus:

  • 25 year warranty
  • Two lines of defence
  • Compatible systems
  • Engineered solutions
  • Single company providing support and warranty


An innovative waterproofing system that will simplify your way of working. SikaProof®-A is a pre-applied sheet membrane waterproofing system consisting of an embossed, highly flexible polyolefin membrane, with a special grid pattern of sealant and a specially designed non-woven fleece. Read more about SikaProof

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Hanson is a member of the Quality Scheme for Ready-mixed Concrete (QSRMC) and all our products carry this certification.