• Structural Waterproofing

    Newton Waterproofing Systems provide full structural waterproofing solutions for both refurbishment and new-build structures to protect the internal areas from water ingress.

    Newton provide waterproofing products for all three types of waterproofing as defined within BS 8102:2009

    1. Type A System – Barrier Protection, attempts to hold water back by applying a barrier (tanking) to the walls and floors of the basement or

    2. Type B System – Integral Protection, the structure itself is constructed to be integrally waterproof and the primary resistance against water ingress or

    3. Type C System – Drained Protection, internal cavity drain system (drained cavity) which receives, depressurises and then discharges water ingress.

    BS 8102 Recommendations for Structural Waterproofing


    When tasked to waterproof retaining structures in accordance with the BS 8102:2009 “Code of Practice for Protection of Below Ground Structures Against Water from the Ground”, professional waterproofing designers should consider using more than one type of waterproofing to provide enhanced protection of the structure and achieve the necessary internal environment. Combination strategies provide increased waterproofing protection to the structure where the riskof leaking is high and the consequences of leaking are unacceptable.


    Whichever combination of waterproofing is chosen, to achieve a completely dry Grade 3 internal environment we would always recommend that one of the forms of waterproofing is a Type C internal cavity drain membrane system. This is supported by the recommendation in BS 8102:2009 for a ‘maintainable waterproofing system’ where products are accessible and can be reversed if necessary. The choice of the other system is largely dictated by the type of structure.


    Newton System 500 is a Type C cavity drain membrane system that comprises wall and floor membranes, drainage as well as mechanical pumping systems, if required.

    Newton provide waterproofing products for all three types of waterproofing as defined within BS 8102:2009:

    Type A (barrier) protection – Newton System 100Newton System 200 and Newton System 400

    Type B (structurally integral) protection – Newton System 300

    Type C (drained) protection – Newton System 500

    Maintainable Structural Waterproofing Systems


    The provision of a maintainable waterproofing system is recommended within BS8102:2009 and Newton can provide maintainable options for all three types of waterproofing defined by the British Standard.


    Example of Type A and C Combination Waterproofing

    Newton 103-S used as a hard-wearing durable membrane for use in a car park specification. This can be used on a concrete deck which could be situated above a dry internal environment.


    “As a long-standing Newton customer, we’re always being kept up to date and supported with the latest product developments, like Newton 109-LM, and getting the right training for our contractors. The liquid rubber is something we’ve used before and it’s always really quick and easy to apply, regardless of how it’s applied or what it’s being used for. Using the drainage membrane alongside was good for this job too, as it meant the finishes could be put back in quickly. Gunwharf Quays was back in use swiftly.”


    Simon Towers, Rubber Spray Solutions

    Guaranteed Installation from a Newton Contractor

    Newton highly recommend that installation is undertaken by a Newton Specialist Basement Contractor (NSBC). As well as fulfilling our strict entry criteria, training and vetting procedures, NSBCs can provide a substantial insured guarantee and take full design liability on the project, fulfilling the role of ‘Waterproofing Specialist’ as recommended by the BS 8102:2009.

    Please contact us for a list of NSBCs in your area.


    Further Information

    For further information about structural waterproofing systems , or to speak to one of our technical experts, please ring 09 527 1829 or e-mail tech@newtonsystems.co.nz.