Newton Specialist Contractor Garratt’s Damp and Timber provided their waterproofing expertise as part of the refurbishment of this high-end commercial property in the prestigious London Borough of Chelsea, as the basement area was experiencing high volumes of water ingress.
Refurbishing a Flooded Shop Basement, Chelsea
Bespoke Waterproofing for a High-End Commercial Space in London
The Project
Newton Specialist Contractor Garratt’s Damp and Timber provided their
waterproofing expertise as part of the refurbishment of this high-end
commercial property in the prestigious London Borough of Chelsea, as the
basement area was experiencing high volumes of water ingress.
By performing a flood simulation Garratt’s identified that water was entering
via defects in the shop front and pavement light wells, travelling along a
concealed steel joist and entering the centre of the basement.
The Solution
Externally, Garratt’s recommended the shop front be removed, and worked
with main contractor CJS and the Newton technical team to design a bespoke
metal bund system to resolve the defects and prevent further water ingress.
The prepared concrete and steel was then treated with HydroSeal 903
Primer and waterproofed with three coats of Newton’s flexible cementitious
waterproofing membrane HydroSeal 107 Elastic 2K.
Internally, Garratt’s recommended and installed the failsafe Newton CDM
System to provide a comprehensive cavity drain waterproofing solution. This
included the BBA certified CDM 508 and CDM 520 eco Floor membranes, and
a dedicated Titan-Pro sump chamber for removing water from the basement.
The chamber houses dual CP250 pumps, managed by a Control Panel-Pro
pump control unit and supported by Victron battery backup protection for
complete peace of mind even in the event of a power outage.
The Result
By working in close cooperation with Newton Waterproofing and the main
contractor, Garratt’s delivered a bespoke waterproofing solution that is both
sympathetic to the original shop front (which was consequently restored) and
also delivers a completely dry, Grade 3 internal environment as per BS 8102.
CASE STUDY
Now fitted out, the basement is part of a high-end commercial unit.
The Products
CDM SYSTEM
The most reliable waterproofing solution for below ground,
combining our decades of experience with high quality, BBA
certified cavity drain membranes, bespoke sump and pump
configurations, back-up systems, telemetry and ancillaries.
HYDROSEAL 107 ELASTIC 2K
Cementitious flexible membrane for the waterproofing and
protection of concrete and masonry. Can be spray applied, and its’s flexibility can accommodate movement in cracks.
HYDROSEAL 903 PRIMER
Primer for Newton cementitious membranes that is quick to
apply and cure, and increases adhesion of the waterproofing.
CP250 PUMPS
High quality, 250 Watt clean water pumps, available in automatic
and manual versions, ideal for removing water from basements.
CONTROL PANEL-PRO
Class-leading pump control panel, designed to provide the
ultimate in pump operation and diagnostics. Has an option to
be pre-fitted with a Dialer for enhanced alarm capabilities.
TITAN-PRO
A unique sump system specifically designed to use with the
Newton CDM System. Compatible with numerous Newton
pumps, and comes fully built with pipework and pipe fittings.
VICTRON BATTERY BACKUP
Inverter/Charger units that provide peace of mind by ensuring
continued pump power during power interruption/outages.
Newton Specialist Basement Contractors
Newton recommends that our systems
are installed by one of our nationwide
network of Newton Specialist Basement
Contractors (NSBCs). Trained by Newton,
NSBCs offer a full guarantee on the
design and installation, and can act as
Waterproofing Design Specialists.
www.newtonwaterproofing.co.uk tech@newtonwaterproofing.co.uk +44 (0)1732 360 095
