Tunnel waterproofing

Manufactures cavity drainage membrane systems for internal and external damp-proof control and gas resistance. The polyethylene membranes feature studs which create a continuous air gap behind the membrane, to isolate walls from new finishes and to allow ventilation of the wall. The membranes can be used externally as a waterproof protection and

The Newton System 100 range of cement-based is designed for making repairs to structural concrete. It can be used in conjunction with the Newton System 500 range of cavity drain membrane systems. The Newton System 500 range is designed to create an internally applied waterproofing system based on cavity drain membranes, drainage systems and

Preformed cavity drainage system designed to relieve water penetration from basements and buried structures

Produces a sodium bentonite waterproofing and damp-proofing membrane for underground structures. The membrane is 6.4mm thick and supplied in rolls 1.25m wide. Larger sizes are available. Applications include under structural slabs, and the construction of diaphragm walls, concrete walls, and secant piled walls. Bentonite sealing strips for

Manufactures a liquid, cold-applied, waterproof membrane for coating direct to damp floors, walls, cellars and basements. Its elasticity safeguards against failures due to cracking of the base, and its high adhesive properties eliminate failures due to lack of bond. Also supplies laminated waterproof sheeting for structural damp-proofing of floors

Supplies SBS-modified elastomeric bitumen waterproofing membranes to civil engineering schemes including bridge decks, car park and tunnels. Also offers geomembranes for lining fresh and wastewater reservoirs as well as providing environmental protection at landfill sites. Site surveys are available

Provides basement waterproofing products and systems as solutions for all types of basement and cellar tanking, plus all types of structural waterproofing products and systems for buildings and different engineering structures, with specialist products for all types of structural concrete waterproofing - both internally and externally applied

Manufacturer of prehydrated sodium bentonite waterproof membranes for structural waterproofing (suitable for grade 4 basements), landscaping, environmental protection and petrochemical lining. The BBA-certified membrane is chemically inert and non-toxic, has a low permeability coefficient, is chemical and saline resistant, self-seals if punctured

RIW manufactures waterproofing and tanking systems. Products include a cold applied high density polyethylene film bonded to aluminium foil and coated with a bitumen / rubber self adhesive layer with a removable reinforced silicone release paper. Typical applications, apart from waterproofing, include the suppression of methane and carbon dioxide

Waterproofing contractor, specialising in the care and construction of basements and other spaces subject to water ingress. Membranes are made from CFC- and HCFC-free materials. They are installed on basement walls and serve to direct any water ingress into drainage channels, whilst maintaining excellent U-values