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External Drainage Solutions
Newtons supply two quality external drainage membranes for the reliable removal of ground water.
Newton 410 Geodrain has a 10mm drainage layer and a vertical water flow of 4.60 litres per metre squared per second.
Why Is Ground Water Removal Required?
Ground water removal is required to ensure that the primary waterproofing membrane is not in permanent contact with ground water pressure so as to comply with the recommendations of the landmark case ’Outwing V Thomas Wetherald’ which decided that it was not possible for the primary waterproofing membrane to be 100% defect free.
With large basements, the cost of providing a structural solution to deal with ground water pressure can be impractical or very costly.
Newton System 400 drainage membranes can be used as part of a designed de-watering system that reduces or removes the water pressure to the tolerances of the structural design of the basement.
Newton’s range of external drainage membranes are used to protect:
- Foundation and retaining walls
- ‘Concrete box’ new-build basements
- Underside of concrete rafts
With John Newton & Company you can expect top quality, innovation and technical expertise in designing the right products for your project.
External V Internal Waterproofing
- Newton 410 Geodrain exernally applied drainage membrane
Newton System 400 drainage membranes provide a means of removing ground water from basements or retaining walls or rafts and can be used in conjunction with primary waterproofing barriers such as Newton 902.
In most cases however, we find that Newton System 500 internally drained waterproofing is the safest option to provide the dry basement required. We suggest that Newton System 500 be explored as the waterproofing system or that Newton System 400 external drainage membranes are used in conjunction with Newton System 500.
Further Information
For help and technical advice please e-mail info@newton-membranes.co.uk or ring 020 7237 1217. Please also contact us for a list of Newton Specialist Basement Contractors (NSBC) in your area, who can offer guaranteed installation of Newton products
