New House, Fairwarp, East Sussex
This new-build property, sited within the lovely Ashdown Forest in Fairwarp, was being constructed with a full earth retaining basement area under the main house. Our design requirements were to ensure that the waterproofing aspect met with BS8102:2009 requirements and provided a long-term maintainable waterproofing solution. Because it was not possible to determine the amount of potential water pressure surround the structure, our design was based on waterproofing design to expect a full head of water pressure against the structure.
As specialist Newton approved contractors and CSSW qualified surveyors, we were commissioned to design and install a Cavity Drain waterproofing system. Newton 500 was deemed to be the best range of products as it provides a maintainable and robust solution—thus meeting the requirements of BS8102. The design included for the both external protection (Type A) and internal (Type C) waterproofing.
Externally— the concrete walls and slab details were prepared to enable the application of a waterproofing fillet and then the application of 2 coats of Newton 902 liquid rubber membrane. Once cured we installed Geodrain 410 membrane, linked to external 100mm perforated land-drain.
Internally—Newton 508 Cavity Drain membrane was applied to all internal walls and floors, so any potential ingress of water would be collected into Basedrain channels throughout the perimeter walls at floor/wall junction and pumped out to safe drainage using Newton Titon Pro pumping system.
We were able to provide a design and installation to provide the client with a long-term robust and guaranteed waterproofing solution.
Finished house within the lovely Ashdown Forest
External and internal membrane systems
Newton 508 membrane applied to internal walls