Sector Housing, private
Project type Refurbishment
Services provided Product / system manufacture
Product / system supply
Project location South East England
Contractor Renderseal Ltd
Products used Delta PT Membrane; Delta PT Plugs with Grommets; Delta Fleece Tape; Delta PT Profile
 
 

Requirement

Delta Registered Installers, Renderseal Ltd were employed to provide a maintainable waterproofing solution to a lightwell which was experiencing water penetration and salt contamination. As part of the solution, the existing garden patio could not be disturbed, or any additional pressure added to the interior of the property.

The basement lightwell walls were earth retaining and subject to lateral penetration from groundwater depending on weather conditions and water table levels. The existing render finish was very sandy in colour and failed to form a barrier to hold back moisture or water.

System components

  • Delta PT Membrane
  • Delta PT Plugs with Grommets
  • Delta Fleece Tape
  • Delta PT Profile

Solution

After surveying the condition of the lightwell and adjoining property, Renderseal Ltd proposed a solution to modify the lightwell to mitigate any future problems without significantly affecting the structure or surroundings. Delta’s PT membrane offers a fast and effective method for repairing and upgrading lightwells, whilst at the same time retaining the existing aesthetics of properties, making this approach particularly suited to repairs.

Delta’s PT Membrane is a HDPE membrane which works as an impermeable damp proofing base for plaster or shotcrete (as a water control and drainage membrane). Due to the “air gap” technology, Delta PT creates an effective barrier to the transmission of moisture, humidity, water vapour and salts, whilst assisting drainage by directing any water ingress to suitable drainage points.

Once the Delta PT was installed, Renderseal incorporated vertical expansion joints to prevent the render from cracking, whilst installing a horizontal stainless-steel stop bead base. The company further applied a two-coat sand/cement mix to provide a surface ready for painting.

Outcome

Renderseal Ltd were praised for the quality and speed of its refurbishment and installation work, which was completed in just five days and within budget. The owners of the property were delighted with the result and happy in the knowledge that their lightwell will remain fully protected against the long-term threat of water and salt ingress.


Requirement

Delta Registered Installers, Renderseal Ltd were employed to provide a maintainable waterproofing solution to a lightwell which was experiencing water penetration and salt contamination. As part of the solution, the existing garden patio could not be disturbed, or any additional pressure added to the interior of the property.

The basement lightwell walls were earth retaining and subject to lateral penetration from groundwater depending on weather conditions and water table levels. The existing render finish was very sandy in colour and failed to form a barrier to hold back moisture or water.

System components

  • Delta PT Membrane
  • Delta PT Plugs with Grommets
  • Delta Fleece Tape
  • Delta PT Profile

Solution

After surveying the condition of the lightwell and adjoining property, Renderseal Ltd proposed a solution to modify the lightwell to mitigate any future problems without significantly affecting the structure or surroundings. Delta’s PT membrane offers a fast and effective method for repairing and upgrading lightwells, whilst at the same time retaining the existing aesthetics of properties, making this approach particularly suited to repairs.

Delta’s PT Membrane is a HDPE membrane which works as an impermeable damp proofing base for plaster or shotcrete (as a water control and drainage membrane). Due to the “air gap” technology, Delta PT creates an effective barrier to the transmission of moisture, humidity, water vapour and salts, whilst assisting drainage by directing any water ingress to suitable drainage points.

Once the Delta PT was installed, Renderseal incorporated vertical expansion joints to prevent the render from cracking, whilst installing a horizontal stainless-steel stop bead base. The company further applied a two-coat sand/cement mix to provide a surface ready for painting.

Outcome

Renderseal Ltd were praised for the quality and speed of its refurbishment and installation work, which was completed in just five days and within budget. The owners of the property were delighted with the result and happy in the knowledge that their lightwell will remain fully protected against the long-term threat of water and salt ingress.


 
 
 
Downloads
  • Case study: Lightwell restoration
    Case study: Lightwell restoration
    4pp 6.12MB
    Download
 
 
 
Enquire
 

Related entries

  • Delta Membrane Systems: DELTA® PT waterproof membrane
    DELTA® PT waterproof membrane
    Delta Membrane Systems
    DELTA® PT is a high-performance polyethylene membrane that has been specially designed with damp control in mind. It is used to insulates and isolate damp and contaminated walls, vaults, and basements. DELTA® PT is manufactured...
  • Delta Membrane Systems: DELTA® PT damp proof & waterproofing membrane
    DELTA® PT damp proof & waterproofing membrane
    Delta Membrane Systems
    Delta® PT is a high-performance polyethylene membrane that has been specially designed with damp control in mind. It is used to insulates and isolate damp and contaminated walls, vaults, and basements. Delta® PT is manufactured...

Also by Delta Membrane Systems

Delta Membrane Systems address and contact details

Delta Membrane Systems Ltd
DELTA House
Merlin Way
North Weald
Epping
CM16 6HR
Tel: 01992 523523
Fax: 01992 523250
View on map
 
Follow Delta Membrane Systems
 
Not found what you're looking for? View other options