At FloodSense we offer both internal and external structural waterproofing.
external structural waterproofing
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, groundwater levels, ground drainage, soil type, and ground contamination.
Generally, waterproof external tanking membranes are installed onto 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 has an immense amount of experience and skilled staff to deal with all types of tanking requirements.
internal structural waterproofing
When internal basement tanking with applied membranes, you must allow for hydrostatic pressure acting upon the membrane, and therefore a ‘loading coat’ may be required. Sub-soil drainage systems should also be incorporated into the design when required.
A cavity drainage system within the basement or sub-structure is the provision of a continuous pre-formed cavity, which intercepts and drains away incoming water in accordance with BS8102:2009 (Type C – Drained protection).
There is a permanent reliance on this cavity to collect groundwater seepage through the structure and channel it to drains or a sump for removal by drainage or pumping. When selecting a suitable drainage cavity system, the external basement structure must provide enough resistance to water ingress to ensure the cavity only accepts a controlled amount of water. When specifying a cavity drainage system, due consideration should also be given to the form of construction, groundwater levels, external ground drainage, soil type, and ground contamination.
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.
For more information
If you would like more information about Structural Waterproofing, please contact us today. We can answer over the phone or by email, any queries you may have, and send you brochures to see the wide range of options we offer.