Type A: Barrier Protection BS 8102:2009 Definition A structure itself has no integral protection against water. Type A waterproofing systems are barrier membranes which are applied to the structure. The membrane can be applied internally or externally to prevent the ingress of water into the inner building fabric. Examples of barrier membranes applied externally to the “positive” side are bonded sheet membranes, sodium bentonite matting and liquid applied coatings (cementitious/bitumen or polymer). Internally, similar approaches that can be adopted to hold water back on the “negative” side of the below ground structure include cementitious coatings and bitumen or polymer based liquids applied via spray, trowel, brush or roller.
Newton System 100
Liquid Waterproofing Membranes
Single or Multi-Layer Systems
Newton System 400
External Waterproofing and Drainage Membranes
Waterproofing and Drainage
Example of Type A Waterproofing
Newton 403 HydroBond pre-applied to a concrete structure provides Type A Protection ®
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