Sector Housing, private
Project type Refurbishment
Services provided Design
Product / system manufacture
Product / system supply
Year completed 2018
Project location East Midlands
Client Private client
Contractor Barker Morris
Products used Delta System MS500 cavitydrainage membranes, tapes and fixings • Delta Drainage Channels • Delta System V3 sump and pump • Delta System FM cavity drainage membrane
 
 

Context

An historic stone cottage in Oxfordshire suffered from periodic flooding due to rain water bearing against the external stone wall as external roads are higher than the kitchen floor slab.

Delta Membrane Systems were able to provide a complete service for the project including CSSW qualified specialists for design advice, a full range of structural waterproofing products and a network or Delta Registered installers.

Project details

Given the high external ground levels, ineffective soakaway drainage would still leave the sub soil saturated at times of flood. An external barrier solution was not considered effective so the solution was to tackle the problem from the inside.

A Type C Drained Protection Solution which is common in structural waterproofing schemes where external ground levels are high and there is a likelihood of water in the ground. The main components of the system are the cavity drainage membranes. These are sheets manufactured from virgin HDPE which are extruded into studs which come in various depths, an 8mm membrane used in this project.

With the floor finishes and kitchen units removed a min. 50mm deep 100mm wide channel chase was cut at the wall & floor joint draining to a Delta Single V3 sump and pump unit. The chase was Bunded.

The inner face of the existing wall was then lined using Delta MS500 cavity drainage membrane fixed using sealed Delta Plugs. The whole of the existing kitchen slab was lined over using 3mm profile Delta FM membrane (which is designed as an underlay for protecting oak floors) the two membranes joined by use of a wide profile DPC.

Externally, Delta Koster Façade cream was applied along the base of the wall to increase the water repellent properties of the wall.

Outcome

The work undertaken has produced a comprehensive and long term solution for this intermittent flooding problem.

The BS85500:2015 Flood Resistant and Resilient solution can be used by the homeowner to reclaim the true market value of the property.


Context

An historic stone cottage in Oxfordshire suffered from periodic flooding due to rain water bearing against the external stone wall as external roads are higher than the kitchen floor slab.

Delta Membrane Systems were able to provide a complete service for the project including CSSW qualified specialists for design advice, a full range of structural waterproofing products and a network or Delta Registered installers.

Project details

Given the high external ground levels, ineffective soakaway drainage would still leave the sub soil saturated at times of flood. An external barrier solution was not considered effective so the solution was to tackle the problem from the inside.

A Type C Drained Protection Solution which is common in structural waterproofing schemes where external ground levels are high and there is a likelihood of water in the ground. The main components of the system are the cavity drainage membranes. These are sheets manufactured from virgin HDPE which are extruded into studs which come in various depths, an 8mm membrane used in this project.

With the floor finishes and kitchen units removed a min. 50mm deep 100mm wide channel chase was cut at the wall & floor joint draining to a Delta Single V3 sump and pump unit. The chase was Bunded.

The inner face of the existing wall was then lined using Delta MS500 cavity drainage membrane fixed using sealed Delta Plugs. The whole of the existing kitchen slab was lined over using 3mm profile Delta FM membrane (which is designed as an underlay for protecting oak floors) the two membranes joined by use of a wide profile DPC.

Externally, Delta Koster Façade cream was applied along the base of the wall to increase the water repellent properties of the wall.

Outcome

The work undertaken has produced a comprehensive and long term solution for this intermittent flooding problem.

The BS85500:2015 Flood Resistant and Resilient solution can be used by the homeowner to reclaim the true market value of the property.


Interested in this project?
Call 01992 523523
OR
 
 
 
Downloads
  • DELTA® MS-500 BBA certificate
    DELTA® MS-500 BBA certificate
    9pp 256.41KB
    Download
  • DELTA® Drainage Channel dimensions
    DELTA® Drainage Channel dimensions
    1pp 38.3KB
    Download
  • Dual V3 sump pump station
    Dual V3 sump pump station
    4pp 2.61MB
    Download
  • DELTA®-FM
    DELTA®-FM
    2pp 2.73MB
    Download
  • KÖSTER KD System
    KÖSTER KD System
    2pp 157.15KB
    Download
 
 
 
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Delta Membrane Systems Ltd
DELTA House
Merlin Way
North Weald
Epping
CM16 6HR
Tel: 01992 523523
Fax: 01992 523250
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Flood resilience project for historic cottage