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New Build Waterproofing

A BS8102: 2009 is the recognised code of practice for the protection of below ground structures against water from the ground.

A waterproofing specialist should be included as part of the design team. They should be able to demonstrate that they have a suitable level of knowledge and experience for designing waterproofing systems. The specialist should be qualified to C.S.S.W. (Certified Surveyor in Structural Waterproofing) level.

Some companies and builders sometimes only waterproof the outside retaining walls using a Type A system. This often fails in later years leading to internal damp problems. For this reason BS8102 asked the designer to consider the form and feasibility of remedial works at the design stage and advises the designer to choose the safest system when the consequences of failure would be dire. If remedial works are not possible in other words repairs cannot be carried out to the external waterproofing system which has usually subsequently being back filled then the design must be changed. For this reason we usually design and specify Type A and Type C waterproofing systems. This provides a robust and satisfactory waterproofing system for new build construction.

Ground Gases

Sometimes ground and ground water can be contaminated with aggressive chemicals such as radon methane and other gases. An external membrane can be used to contain such gases that will provide an affective ground barrier and give resistance to these types of contaminates.

We are able to design and implement ground gas membranes especially on new build construction.

It is always advisable to discuss your needs with our surveyors so that the right outcome will be achieved.

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Covid-19 Update
We are working as normal following current government guidelines and in accordance with safe working procedures.