External tanking is the provision of an external tanking membrane to the outside of the basement or sub-structure in accordance with
BS8102:2009 (Type A – Barrier protection). When selecting a suitable external tanking membrane system, consideration should be given to the form of construction, ground water levels, ground drainage, soil type and ground contamination.
Generally, waterproof external tanking membranes are installed onto a horizontal blinding and vertically to reinforced concrete or masonry substructures. Boundary line construction applications, including secant piling, contiguous piling and sheet piling, create challenging substrates and therefore some waterproof wall tanking membranes will not be deemed suitable, due to factors such as the need for excessive surface preparation. Sub-soil drainage systems should be incorporated into the design, when required.
Floodsense have an immense amount of experience and skilled staff to deal with all types of tanking requirements.
We also have a sister company called FloodSense Contracting – The Go-To Contractors for Above and Below Ground Waterproofing For more information click the button below. The FloodSense Contracting website will have more information about different waterproofing solutions.