Traditional methods of basement waterproofing such as cement based renders, often referred to as ‘basement tanking’ are becoming less reliable as water table levels rise and bring increased hydrostatic pressure to bear on properties. The new but increasingly used solution is to apply a Polyethylene sheet material described as Cavity Drain Membrane which, provided the substrate is suitable, can be directly applied with little preparation to the walls. Cavity membrane is both vapour proof and impervious to water and provides additional insulation value.

Before the membrane is fitted a drainage provision is installed to ensure quick and efficient evacuation of any water ingress which stays behind the membrane. Internal finishes of insulation and plasterboard or plaster and render products are applied in front of the membrane to provide a dry and well insulated living area.

Correctly installed by approved contractors and with ongoing routine maintenance of drainage channels and pumps, these systems can last the lifetime of the property. Contact us for more information and help with your basement conversion.


For more information about waterproofing please contact us on (01) 493 9007 or send us an email.