DELTA MEMBRANE SYSTEMS LTD
Suppliers of: Type C Waterproofing membranes, Basement/Below Ground Cavity Drainage Systems, Tanking Systems, Basement Tanking Membranes, Type A Waterproofing Systems, Type B Waterproofing Systems, Structural Waterproofing, Waterproofing Systems, Submersible Pumps, Fl
Delta Membrane Systems Limited is the leading Type C Cavity Drain Membrane manufacturer in the United Kingdom and the UK arm of Dörken Gmbh & Co KG, the world’s largest manufacturer of cavity drain membranes. Delta Membrane Systems Limited provides a full range of waterproofing and damp proofing solutions for architects, specifiers, developers, contractors and homeowners alike on new, retrofit and refurbishment construction and in flood resilience. We also supply ground gas protection membranes protecting structures from harmful ground gases such as radon, carbon dioxide, methane and hydrocarbons.
With over 125 years of manufacturing experience Delta is an impeccable partner on every project. Our skills have been mastered through experience in the waterproofing industry. Delta’s Technical Team will help from concept to completion. Our hands-on approach and knowledge are what sets us apart.
Installing a Delta Membrane System offers complete protection to structures from ground water ingress and contaminates. Our products comply with British Standard 8102:2009, 8485:2015+A1:2019 and 85500:2015 and are BBA certified.
Our nationwide network of Delta Registered Installers offers a fully guaranteed installation service.
Proudly supporting the Women of Waterproofing Networking Group to inspire, retain and attract females into the Waterproofing sector.
CAD Drawings available on our website or via FastrackCAD
Main Products & Applications:
Delta provides waterproofing products for all three types of waterproofing (Types A, B & C) as defined within BS 8102:2009.
Our ‘Type C’ Waterproofing Systems are a maintainable basement/below ground waterproofing solution for new-build basements, refurbishment and retrofit projects. The Type C System comprises of a Cavity Drain Membrane, Drainage system, Package Pump and Control System.
In principle a cavity drain membrane system allows moisture or running water to travel behind the membrane within a controlled drainage system. A cavity drain system requires minimal preparation and disturbance to an existing substrate.
In various formats podium decks have been around for many years, however they are becoming more widely used on top of basement constructions as either paved areas, gardens or terraces. A podium deck is a structural element which is essentially an elevated platform which allows for usage both above and below, these may be terraces over underground car parks, gardens over basements, balconies over terraces and patios.
External Drainage Systems are also known as external tanking, which is the application of a waterproof membrane to the outside of a basement or substructure in accordance with BS 8102:2009 (Type A).
Delta Membrane Systems Limited offer a comprehensive range of ground gas protection solutions along with its structural waterproofing solutions. From our MemTech ground gas membranes to waterproofing systems, our product range is designed to deal with all ground gas, contaminants and waterproofing related problems.
Koster Bauchemie AG specialises in high quality structural waterproofing products and systems. These systems protect and preserve buildings and structures worldwide. Whether the subject is restoration of a heritage building, waterproofing of a new building, reinstalling failed horizontal barriers in masonry, restoration of wet basements, or waterproofing of roofs and facades, rest assured; with our comprehensive and deep product program Koster have the optimum solution.
Koster systems and products stand out due to their exceptionally easy and user-friendly application.
Specialist Basement Drainage – Pumps and Flood Protection
We have a team of application engineers who can assist with selection of ground, surface & foul water pump stations. This can be carried out against drawings, meetings on site & your offices or ‘via net’ viewer sessions.
We can also provide solutions for Flood prevention for both renovation and new build projects.
Damp Proofing – Above ground
Damp Proofing is the process in which methods are used to prevent water/water vapour from travelling through walls and floors from ground level up (rising damp). There are other ways damp can enter walls, but this is the most common.
Delta offer a range of physical and chemical DPC’s that can treat all types of Damp.
Structural Waterproofing – Pre-formed, Liquid Applied & Injection
Delta offer a wide range of waterproofing solutions for all types of applications. Products include pre-formed membranes & ancillary products, liquid applied systems, movement and construction joint waterproofing and injection systems. Please contact our technical team for support in selecting the right system for your project.
Further technical information and guidance is available on the Delta Membrane Systems website or via the BPi download Library
Delta Membrane - Commercial to Residential Basement Conversion
Commercial to Residential Basement Conversion
Commercial to residential, it may be last orders for some of our great British pubs, for other’s its discovering exciting ways of transforming commercial structures into luxury residential dwellings. The growing trend of converting old inns offers new homes a unique history whilst being packed with character and features.
Delta Registered Installers, Advance Property Preservation Ltd were engaged to assist on a troublesome vaulted basement to a property, based in central London which had already been converted into high living accommodation.
Just off the basement area were two large vaults around 12m long. Made from brick barrel construction, this below ground space had previously used for storing kegs of ale!
One of these vaults had previously been converted into a spa area with jacuzzi and steam room, the other was used as a storage area. The owners had previously had the storeroom tanked with a Type A, render system, however this approach repeatedly failed, allowing for substantial water ingress which was causing damage to items stored in this area.
With Structural Waterproofing one of the major contributors to project failure lies with the design. When hiring contractors, ensure the design, procurement of materials and installation is undertaken by one specialist will naturally reduce these known and associated risks. A specialist contractor will always be able to offer quality assurances.
Consideration to the grading of the structure (habitable requirements in this instance) is key to specifying an appropriate waterproofing system.
For Grade 3 Habitable environments, two systems of waterproofing may be required.
For Grade 2, Habitable environments, only one form of waterproofing may be required, but caution should be applied because different stored items require very precise environments.
Prior to any product specifications, Advance Property Preservation Ltd firstly undertook thorough site investigations. This initial investigation allows for important ‘cross-checks’ to ensure any proposals will meet not only customer requirements but will also conform to BS 8102:2009, the British Standard which governs the waterproofing industry.
On surveying the site, which was directly below a road it was evident that vibration from traffic was causing the existing render system to crack, which was resulting frequent in water ingress.
Advance Property Preservation Ltd proposed installing the Delta Type C Cavity Drainage System along with mechanical ventilation. The Delta Type C Cavity Drainage System allows for slight movement and vibration without altering the dynamics of a structure.
In principle a Cavity Drainage System allows for moisture or running water to travel behind the membrane in a controlled drainage system. Whilst requiring minimal preparation and disturbance to an existing substrate.
Delta MS 500 was installed to walls and barrelled ceilings, with Delta MS20 loose laid and joined to the MS 500 wall membrane laid to the floor with a protective screed subsequently poured on top. Below the floor membrane perimeter drainage channels were sited within rebates allowing for suitable drainage of any future water ingress and being diverted to suitable discharge points.
It seems natural to focus on the installation itself, Advance Property Preservation also considered the final operation, ensuring the Type C System was serviceable and that future and ongoing maintenance was possible.
After the Type C System was installed, walls and soffits were battened and boarded with moisture resistant plasterboard and plastered over. Once complete the walls were painted with an anti-mould paint, with insulation and timber oak flooring then being laid.
A moisture sensitive, humidistat-controlled fan was fitted as well as new lighting to give the client a new dry storage space.
Delta Membrane - What are the best waterproofing products?
Product Focus – Koster KB Flex 200
What are the best waterproofing products?
With a long background in structural waterproofing, Delta’s Director, Christopher Burbridge, tells us all about one of his favourite products.
As much as I love structural waterproofing (and trust, me I really love it), Koster products really are a place to invest when it comes to your project needs. I’m not saying you must drop half your budget on a lot of products, but you do have to invest time, research and yes, perhaps a little cash, when it comes to creating a robust solution.
What is it? Where did it come from?
A WOW product and one that never fails to impress me is Koster KB Flex 200. I absolutely love how Koster KB Flex 200 can instantaneously stop water in its tracks. Within seconds KB Flex 200 can solve massive problems, turning into an incredibly easy solution. It’s a great “Impact” product.
It is incredibly useful on lots of waterproofing project and is user-friendly.
Koster Bauchemie AG have been specialising in development and production of high-quality waterproofing systems since 1982. Their headquarters are in the lovely town of Aurich, Germany.
Delta Membrane Systems is the UK distributor of Koster products.
What does it do?
Koster KB Flex 200 is a permanent plastic sealing compound ideal for sealing pipe and cable penetrations, cavities and for custom detail waterproofing solutions against moisture and pressurized water.
Prior to application, the Koster KB-Flex 200 cartridges are laid into warm water and heated to approx. +30 °C. This ensures that the material has the optimal consistency for application. The application area flanks must be thoroughly cleaned from the inside so that they are free of dust, sand and other loose particles.
Koster KB Flex 200 must be dimensioned so that the ratio of the width (w) to the diameter (d) of the installed material is not below 1.5:1. The maximum diameter of the waterproofing is 300 mm. Before applying Koster KB Flex 200, a backing is installed in the penetration at a depth of 10 cm using a common 2C PU foam. The Koster KB Flex 200 cartridge is then placed in the gun and the material is pressed into the penetration from back to front utilizing the nozzle so that the resulting layer thickness is at least 8 cm.
What keeps you continually using it?
Delta has an incredibly famous phrase “locking down a structure”. When we use this in a technical term, we are looking to stop any active water/leaks percolating through the structure at that time and/or to protect areas that are weak points such as service penetrations, which have the potential to leak. We need to ensure these areas are sealed prior to the application of the waterproofing system.
As I mentioned previously Koster KB Flex 200 is a great impact product. It makes the job of “locking down a structure” an incredibly easy one.
Koster KB Flex 200 can be used anywhere – from existing structures, to basements, swimming pools, as well as on new build projects.
The product is ideal because:
it doesn’t require ongoing maintenance
it instantly can stop flowing water
it doesn’t dry out and remains permanently mouldable
it adheres extremely well to dry and moist substates
it’s a great solution for sealing pipe and cable penetrations along with leak sealing and gap filling and sealing
it can be applied to dry, moist or wet substrates
it has an immediate functionality
it’s suitable for both positive and negative waterproofing
Want to witness Koster KB Flex 200 in action? We have a great “How to” video guide below and we absolutely love showing our customers how great a product this is by doing live demonstrations at Delta HQ.
If you’re passing HQ and would like a demo – we’ll always be happy to show you the value of this product.
To find out more about Delta products, call 01992 523 523 or email: email@example.com.