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Delta Membrane Systems Limited Exhibiting at Structural Waterproofing Conference

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We’re delighted to be attending and exhibiting at the Property Care Association (PCA) Structural Waterproofing Conference SWC2024 on 19 September 2024 at Telford International Centre.

Don’t miss out on this amazing opportunity if you’re a structural waterproofing enthusiast or simply want to keep abreast of the latest in the industry.  The Structural Waterproofing Conference brings together the industry’s leading minds for an event brimming with informative presentations and stimulating discussions. This is an unparalleled opportunity for networking, gaining knowledge, and learning from the experts. We highly recommend attending!

Get ready for an exhilarating revelation!

A fresh, innovative product is ready to hit the market – experience the future with our groundbreaking new product which we are excited to be demonstrating at the conference!

This innovative creation is not just a product, but a revolution – Our Technical Team will be very happy to talk to you about the incredible features of this latest innovation.

You can be sure of a friendly welcome!

PCA Best Practice Awards

No PCA Conference is ever complete without a fabulous night full of joy and fun at the highly esteemed PCA Best Practice Awards. This event is all about applauding the exceptional accomplishments of PCA members in the past year.

Delta are excited to be shortlisted in the Digital Space category!! Good luck to all the other finalists!!

We hope to see you there!

About us

Delta Membrane Systems Limited is a manufacturer and provider of specialist structural waterproofing solutions, covering Types A, B and C waterproofing, combination waterproofing, damp proofing, flood resilience and ground gas protection.

Our product portfolio boasts BBA certified solutions, adaptable for a variety of projects, whether commercial or residential, new build or renovation, housing developments, or civil infrastructure.

At Delta, we pride ourselves on our innovative product range and a team of waterproofing design specialists. Our experts are dedicated to providing you with reliable advice, helping you to identify potential issues and uncover opportunities for added value in your projects. Demonstrating our commitment to equality, Delta proudly supports the Women of Waterproofing Networking Group. This initiative champions gender balance within the industry and works tirelessly to inspire, retain, and attract more women to the sector.

Choose Delta, and you’re choosing a company that values both top-tier solutions and equality in the workplace.

Always Happy to Help

Whatever the needs of your project, you can rely on Delta’s Technical Team to ensure you get the right advice, support, and practical help at exactly the right time its required.  Call us today on 01992 523 523 or email info@deltamembranes.com.

Discover Newton’s Waterproofing Design Partnership

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In the world of construction, effective collaboration is key to achieving outstanding results. Introducing the Waterproofing Design Partnership – a groundbreaking initiative that redefines how waterproofing projects are approached.

This innovative partnership brings together specifiers, suppliers, and contractors into a cohesive team, ensuring seamless integration throughout the design process, and delivers superior outcomes that minimise the risks  to the client.

By leveraging the collective expertise of all stakeholders, the Waterproofing Design Partnership sets a new standard for excellence in the industry, offering architects and specifiers a reliable solution for their waterproofing needs that is backed by professional indemnity insurance.

Working with the specifier, both Newton and our approved contractors can take full liability for the waterproofing at any design stage, acting as the designated waterproofing designer in partnership with the specifier as the principal designer.

The Structure of the Waterproofing Design Partnership

The Waterproofing Design Partnership brings together the client, the specifier, the supplier, and the contractor into a cohesive, unified team. This integrated approach ensures that every aspect of the waterproofing design is meticulously planned and executed, providing a seamless experience from start to finish.

Key Components of the Partnership

  • Client: The client’s needs are at the forefront of the design process, ensuring that the waterproofing solution is tailored to the intended use of the structure.
  • Specifier: The specifier works closely with both Newton’s in-house waterproofing designers and our specialist contractors to develop a robust and compliant waterproofing solution that is appropriate to the structure and the method of construction.
  • Supplier: Newton supplies an advanced range of waterproofing systems, including Type A, Type B and Type C systems as defined by British Standard 8102:2022, ensuring high-quality materials are used throughout the project.
  • Contractor: Newton’s nationwide network of approved contractors can also act as the waterproofing designer, taking liability under their own PI insurance, and are also responsible for the installation. They also provide insurance-backed guarantees for their work, ensuring peace of mind for the client.

Benefits of a Unified Approach

The Waterproofing Design Partnership offers numerous benefits, making it an essential consideration for architects and specifiers.

Compliance with British Standards

Newton’s Waterproofing Design Partnership ensures that your waterproofing design will meet with the stringent recommendations of British Standard 8102:2022, which is the Code of Practice for the Protection of Below Ground Structures Against Water Ingress.

One of the Standard’s primary recommendations is that a waterproofing design specialist should be consulted at the earliest stage of a project, as well as being consulted on and approving of any design amendments which may impact the waterproofing.

By employing the services of the Waterproofing Design Partnership, you are ensuring that the waterproofing design meets the British Standard’s safety and performance requirements.

Meeting Building Safety Act Requirements

The partnership also meets the stringent requirements of the Building Safety Act, which demands that, if your level of cover doesn’t extend to specialisms like waterproofing, or if you lack the requisite competence or experience, then you must appoint another suitably qualified organisation to take responsibility for this aspect of the design.

By working with Newton and our approved contractors, specifiers can ensure that their projects meet all necessary regulations, providing a secure and compliant waterproofing solution.

Professional Indemnity Insurance Coverage

One of the standout features of the Waterproofing Design Partnership is the inclusion of a waterproofing specialist as part of the design team. Both Newton and our approved contractors meet this standard and can take full liability at any design stage, acting as the designated waterproofing designer as per BS 8102:2022 and the Building Safety Act. This coverage secures the quality of the design and provides the client with a guaranteed installation, offering unparalleled peace of mind.

Ensuring Quality Design and Guaranteed Installation

Specialist Expertise

Our specialist contractors work in partnership with Newton to provide the highest quality products, design, and installation in all aspects of domestic and commercial basement waterproofing. All contractor members adhere to strict criteria and are required to demonstrate quality workmanship, resulting in a meaningful scheme that provides unsurpassed technical excellence. We always recommend that an NSBC is involved in a project where a new-build or existing structure requires waterproofing.

Newton’s team of certified waterproofing specialists also bring a wealth of knowledge and experience to every project. Their expertise in all aspects of structural waterproofing, in terms of both the design and installation, ensures that the waterproofing solution is effective and reliable.

Comprehensive Solutions

The partnership utilises Newton’s comprehensive range of waterproofing systems to deliver an integrated waterproofing solution that accounts for any project constraints, client requirements, structural considerations and regulatory compliance.

By selecting and combining appropriate systems, such as external and internal barrier systems, structurally integral waterproofing, and drained cavity systems, we ensure a comprehensive and effective waterproofing solution.

Guaranteed Installation

On design completion, Newton’s approved contractor takes the liability for the waterproofing under their own PI insurance. This ensures the quality of the installation and provides the client with a secure and reliable waterproofing solution, that will also be secured by the contractors’ own installation guarantee.

A Partnership Built on Trust

Trust is a fundamental component of the Waterproofing Design Partnership. By bringing together the client, specifier, supplier, and contractor, we are able to create and maintain a ‘golden thread’ of consistent waterproofing expertise throughout the design and installation process, as required by the Building Safety Act and ensuring the overall success of the project.

Market Leaders in Waterproofing

As market leaders in the waterproofing industry, we have a proven track record of delivering high-quality waterproofing solutions. Our commitment to excellence and innovation has earned us a reputation as a trusted partner for architects and specifiers.

Peace of Mind for Clients

The Waterproofing Design Partnership offers clients peace of mind, knowing that their project is in capable hands. From the initial design to the final installation, our team of experts and industry-leading specialist contractors ensure that every aspect of the waterproofing solution is meticulously planned and executed.

How Can Newton Waterproofing Help You?

If you are an architect or specifier looking for a reliable and innovative waterproofing solution, look no further than Newton Waterproofing. Our Waterproofing Design Partnership offers a comprehensive and compliant solution that ensures the quality and durability of your project.

Contact us today to learn more about how Newton’s Waterproofing Design Partnership can benefit your next project.

 

CPD Approval for Delta Membrane Systems Limited

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RIBA approved CPD Seminars – Delta Membranes

Technical – Delta Membranes

Video Suite – Delta Membranes

Delta Membrane Systems Limited is delighted to announce their ‘Waterproofing – The Application of Concrete Combinations Type A, B, and C Systems for Continual Professional Development (CPD)’, has received endorsement from the Royal Institute of British Architects (RIBA). This seminar represents a significant chance for industry professionals to broaden their understanding of waterproofing technology.

Delta’s Waterproofing – The Application of Concrete Combinations Type A, B, and C Systems presentation delves into the realm of design specialisations, specifically focusing on waterproofing design. The specialist’s toolbox includes a variety of elements and considerations, all meticulously developed to form a robust solution.  This presentation is designed to equip Architects, Designers, and Specifiers with a comprehensive understanding of the factors a waterproofing design specialist considers to formulate a robust solution that aligns with the standards of BS 8102:2022 and BS 8500-1:2023.  This deep dive into design methodology offers a unique perspective into the rigorous process behind waterproofing design.

This approval underscores Delta’s ongoing commitment to professional growth and knowledge expansion in the field of waterproofing solutions. We believe this seminar will significantly contribute to your professional development and assist in maintaining your CPD requirements.

In this informative presentation, we are collaborating with SMR Projects Limited, a leader in the field of Type B structural waterproofing design and specifications for below-ground structures.  Our focus is to provide a comprehensive insight into two harmonious methodologies.  SMR Projects Limited’s expertise in the field fortifies the value of this presentation.

Both Delta and SMR unite innovative products with highly skilled waterproofing design specialists.  Both organisations have an in-house team of technical consultants to support our customers by providing comprehensive, reliable, and expert advice, identifying, and mitigating risk and establishing opportunities for added value.

Proudly part of the RIBA CPD Providers Network.  Members whose materials are thoroughly vetted by RIBA, notably, this content is worth twice the usual CPD points for RIBA Chartered Architects.  For easy access and navigation, all the materials are fully indexed on ribacpd.com.

Delta’s seminars are designed to last for about 60 minutes, this duration includes time for enquiries and discussions. Additionally, attendees will receive an attendance certificate, which allows them to accrue points for continuous professional development.

Delta’s CPD presentations are offered in several accessible formats.  Available in person for a more traditional, interactive experience.  Alternatively, they’re available as private webinars, which are conducted on digital platforms like Teams or Zoom. For those who prefer flexibility, Delta’s presentations can also be accessed as recorded versions “on Demand”, allowing for self-paced learning.

Enhance your knowledge with our ‘Lunch while you Learn’ program. This engaging initiative allows you to combine nourishment for your body and mind at the same time.

Delta Membrane Systems Limited is a manufacturer and provider of specialist structural waterproofing solutions, covering Types A, B and C waterproofing, combination waterproofing, damp proofing, flood resilience and ground gas protection.

To find out more information about Delta’s CPD seminars, email: info@deltamembranes.com

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Fire Retardant Waterproofing

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Technical Drawings – MS Fire Type C Drained Protection – Delta Membranes

Delta Fire Retardant, Type C Waterproofing – Delta Membranes

Comparison Test of Delta MS 500 Fire – Delta Membranes

Fire retardants serve a crucial role in fire safety measures, fire retardant materials possess the unique characteristic to slow down or even halt the spread of fire. This key feature makes them an essential element in fire safety management.

Typically, the concepts of water management and fire safety are not concurrently considered due to their contrasting nature and effects.  Though it may initially appear far-fetched, upon closer inspection, it is not as irrational as it may first seem.

Waterproofing refers to the technique of preventing water from penetrating a structure and controlling the flow of water and water vapor within and out of the structure.  Type C waterproofing integrates two key elements for optimal functionality: Cavity Drainage Membranes and Basement Drainage Systems. These components work in unison to ensure efficient water management in structures.

Type C Cavity Drainage Membranes tend to be crafted from High-Density Polyethylene (HDPE); a tough, durable plastic material known for its high strength-to-density ratio. This material offers excellent resistance to impact, moisture, and chemicals, ensuring long-lasting performance and reliability.  However, polyethylene possesses flammable characteristics.  It can easily catch fire under certain conditions, due to its chemical composition.  When exposed to certain conditions, plastic can undergo a transformation where it starts to melt and subsequently produce droplets. This occurrence is crucial to consider when dealing with plastic materials.

The Euro class system is an analytical tool that evaluates various fire-related characteristics. These include ignitability, the rate at which flames spread, heat emission, smoke generation, and the likelihood of producing flaming droplets or particles.  Products achieving A1 and A2 classification are defined as non-combustible under Regulations.

The Euro class system is designed to unify standards throughout the European Union. It systematically classifies products into seven distinct fire reaction classes, from A1 to F, with F being the most combustible. This classification is determined through a specific test or a combination of tests. This professional framework ensures a consistent approach to product safety standards.

The system offers an extended classification, usually linked to fire response classes D through B. This classification relates to smoke production, ranging from s1, indicating minimal or no smoke, to s3, which signifies considerable smoke. It also categorises flaming droplets or particles, from d0 representing no presence, to d2 signifying a significant amount.  This information is crucial in understanding the behaviour and potential hazards of fires.

Delta MS 500 Fire Retardant is a robust Type C, Cavity Drained Protection system, designed to withstand demanding conditions. It holds a Euroclass fire rating of B-S2, d0 (EN 13501-1:2018), an indication of its superior fire resistance.  Delta MS 500 Fire Retardant does not compromise on its strength, durability, functionality, or workability. This makes it an excellent choice for applications where both fire safety and structural integrity are paramount.

The Delta MS 500 Fire Retardant is a product that carries the BBA certification. This seal of approval signifies that this fire-retardant waterproofing system meets the rigorous standards set by the British Board of Agrément. The certification is an assurance of quality, reliability, and safety in fire retardation.

Flame retardants play a critical role in enhancing safety measures in homes or buildings. Their primary function is to delay the spread of fire, thereby providing occupants with crucial extra time to evacuate and firefighters with additional time to intervene. Moreover, they contribute significantly to preventing property damage, not only from the fire itself, but also from potential water damage arising from automated sprinklers or fire control efforts by local authorities.

Delta Registered Installer Network

The Delta MS 500 Fire Retardant system, is accessible exclusively via the Delta Registered Installer Network.  This network is a trusted source for acquiring this high-quality fire retardant.

Always Happy to Help

For all your project requirements, Delta’s Technical Team is a dependable resource. Offering expert advice, comprehensive support, and timely practical assistance, we cater to your specific needs. Reach us at 01992 523 523 or drop us an email at info@deltamembranes.com.

Building Safety Act: Are You Specifying Compliant Waterproofing Solutions?

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Written by Warren Muschialli

The introduction of the Building Safety Act (BSA) in England, arguably the most important regulatory change in construction since the 1980s, has significantly impacted the industry.

The new requirements of the Building Safety Act have implications for all buildings, and do not just apply to higher-risk, high-rise buildings. This includes the requirement for keeping up-to-date information about how a building has been designed, built, and managed – a ‘Golden Thread of Information’ that is stored digitally for the entire life of the building.

The BSA also creates a new Building Safety Regulator (BSR), responsible for:

  • Overseeing the safety and performance systems of all buildings (not just high-rise structures).
  • Monitoring the performance of the building control sector, to ensure standards are met.
  • Setting building standards.
  • Regulating construction products for the UK.

Furthermore, specifiers, including architects, now face new responsibilities and potential liabilities regarding the performance of the building materials that they specify.

This shift necessitates a more meticulous approach to product selection, particularly when it comes to waterproofing solutions. Here’s how the Building Safety Act impacts your role as a specifier and how Newton Waterproofing can empower you to meet the Act’s stringent requirements.

New Obligations and the Importance of Compliant Waterproofing

The BSA introduces a new regulatory framework emphasising building performance. A key aspect of this framework is the concept of dutyholders, each with specific obligations throughout a building’s lifecycle.

The new dutyholder roles apply to those involved in procuring, planning, designing, managing, and undertaking building work, and are relevant to all building work covered by the 2010 Building Regulations – not just higher-risk buildings.

Specifiers are now most likely to be appointed as the ‘principal designer’ dutyholder under the Act, endowing them with responsibility for ensuring the building materials they specify comply with relevant regulations. They are also required to ensure they have competence (the necessary skills, knowledge, experience and behaviour) to carry out the design and building work they are engaged to do.

However, if a specifier thinks they may not have the required competence, or the design is outside the scope of their PI cover, they should ensure another organisation with the necessary competence is appointed as a designer to perform the role.

These requirements for competence, compliance and liability must therefore be considered when designing waterproofing solutions. Non-compliant waterproofing systems can pose significant risks, not just in terms of water ingress but also potentially impacting the future health and safety of the occupants of a below-ground area of a building.

Therefore, specifying compliant waterproofing solutions is not just about optimal building performance; it’s about mitigating potential future risk for building occupants, managing liability, and ensuring conformity with all requirements laid out under the Act.

Achieving Specifier Confidence: Newton Waterproofing’s Commitment to Building Safety Act Compliance

We understand the challenges specifiers face in the post-BSA landscape. That’s why we offer a comprehensive range of accredited waterproofing solutions that fully comply with the Act’s requirements.

Our commitment to assisting specifiers with their Building Safety Act compliance is reflected in several key aspects:

Rigorous Product Testing: All our waterproofing products undergo rigorous testing by independent laboratories, ensuring they meet the performance standards outlined in the Act and relevant British Standards.

Third Party Verification: Our products hold all necessary certifications, providing specifiers with the confidence that they are selecting solutions that demonstrably meet the Act’s requirements.

Expert Support: Our team of waterproofing specialists is here to guide you through the product selection process. We can provide detailed information on the performance characteristics and compliance certifications of our waterproofing systems.

Professional Indemnity Cover: Both the Newton approved contractor network and the Newton design team hold the necessary PI cover, as well as the necessary skills, knowledge, experience and qualifications to provide competent and compliant waterproofing designs.

Whether you are specifying our products or appointing Newton and our approved contractors as a competent designer, you can gain peace of mind knowing you are meeting the Building Safety Act’s stringent requirements. This not only mitigates potential liabilities but also contributes to the overall safety and performance of the buildings you specify.

Navigate the Building Safety Act with Confidence with Newton Waterproofing

The Building Safety Act represents a significant change for the construction industry. However, by working with a trusted supplier like Newton Waterproofing, you can navigate these changes with confidence.

We offer a complete range of compliant waterproofing solutions backed by rigorous testing and certifications. Our team of experts is also here to support you in selecting the most suitable waterproofing system for your project requirements.

Contact Newton Waterproofing today to discuss your next project and ensure you are specifying Building Safety Act compliant waterproofing solutions.

 

The Leading Experts in High-Profile Listed and Historic Building Waterproofing Projects

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Listed and Historic Building Waterproofing Project Video

Written by Warren Muschialli

When it comes to high-profile waterproofing projects, Newton Waterproofing is the name that stands out. With our extensive range of products as well as our history and expertise, we have become the go-to company for waterproofing solutions in both commercial and domestic properties across the UK.

Whether it’s a new-build project or an existing structure, we have the perfect solution to tackle any size of project, with the ability and know-how to meet the complexity of listed building requirements making us the ideal choice for preserving historical structures while providing effective waterproofing solutions.

We can provide waterproofing systems and solutions that are ideally suited for meeting listed building requirements and have been used to treat properties such as the British Museum, the Royal Courts of Justice, and the Houses of Parliament.

Fire Resistant Tunnel Waterproofing at the British Museum

Earlier this year we worked on a project to address water ingress in the tunnels beneath the Grade 1 listed King Edward VII Galleries, part of the British Museum complex in London.

The water ingress was causing concern about the quality of air supplied to the gallery, so Newton collaborated with Arti Structural Waterproofing and Oldroyd to develop a unique membrane system that would protect against both water ingress and fire. This allowed the tunnels to be reinstated as the primary air supply to the galleries, with the team proposing a system that met all requirements for waterproofing and fireproofing a Grade 1 listed building.

The solution involved cleaning and repairing the tunnel walls and floors before installing the flexible, cement-based HydroCoat 107 Elastic 2K as a primary Type A barrier, sealing any existing leaks where a Type C system was not feasible. Following this, the unique Oldroyd Xtf membrane provided a full Type C cavity drain membrane system to the walls and floors – cavity drain membrane systems are widely accepted in listed structures due to their maintainability and reversibility.

The Oldroyd Xtf membrane used in this project is exclusive to Newton and produced by specialist manufacturer Oldroyd in Norway using environmentally friendly raw materials. It is also tested according to the EN 13501-1:2007+A1:2009 standard for fire classification of construction products and building elements, achieving a B-s2.d0 fire rating.

Additionally, CDM 520 eco Floor was used beneath the floor build-up, providing maximum drainage capacity to the pumping system for any ingressing water.

The project faced challenges such as high humidity levels and the prospect of fitting fire-rated membranes in extremely constrained spaces, all while ensuring effective installation around existing services which could not be removed.

Despite these challenges, Newton and Arti completed the project successfully over ten weeks, delivering a waterproof, fireproof, and maintainable solution. The client now has a system that meets their requirements and will be regularly serviced by Arti Structural Waterproofing.

Waterproofing the Royal Courts of Justice

Newton Specialist Basement Contractor Stonehouse were tasked with waterproofing the Judges’ Robe Rooms in the below-ground vaults at the Grade 1 listed Royal Courts of Justice to create a Grade 3 habitable space. This project followed their successful waterproofing of the vaulted bird beak Victorian arches in the same building.

To waterproof the intricate vaulted areas, Stonehouse installed a full Type C waterproofing system utilising Newton CDM 508 Mesh membrane, which required careful detailing and expertise to ensure proper installation. The membrane was carefully lapped, sealed and fixed using different specialist plugs depending on whether the membrane was applied to the vault spring and above, or on the vertical plane.

The Newton CDM System is our Type C water management system that captures and diverts any water ingress down to the BaseDrain drainage channels for safe removal away from the property. For this project, a direct plaster finish was applied onto the meshed membrane for a high-quality finish in keeping with the structure’s listed status.

The result of Stonehouse’s installation was the creation of a Grade 3, completely dry and habitable internal environment, ensuring that it would be suitable for its intended purpose.

The installation also conformed to Listed Building requirements by designing a maintainable and reversible system that also retained the building’s unique design characteristics.

Waterproofing the Houses of Parliament

Newton Waterproofing was chosen to provide a waterproofing solution for the Houses of Parliament in London. The project required both external and internal waterproofing systems, as well as a polyurea roofing system.

Our self-healing HydroBond 403 Plus membrane was used externally to provide a waterproof barrier around the new-build basement extension to the iconic Grade 1 listed London landmark. Internally, our CDM 508 and CDM 520 membranes were applied from floor to ceiling as part of the Newton CDM System for providing a full cavity drainage solution.

The finished structure also received a polyurea coating and additional drainage membrane on the roof deck of the basement.

The result is a fully compliant and guaranteed waterproof basement that provides durable protection against water ingress through the combination of multiple types of waterproofing.

The Leading Experts in Waterproofing Solutions

The Newton team has proven time and again that we are the leading experts in waterproofing solutions for high-profile projects.

Our extensive range of products and expertise make us the go-to company for both commercial and domestic properties across the UK, and with our ability to meet the complexity of listed building requirements, we have successfully preserved historical structures while providing effective waterproofing solutions.

How Can Newton Waterproofing Help You?

We are dedicated to providing high-quality waterproofing services throughout the UK, and our team of experienced professionals and specialist contractors have the expertise to tackle even the most challenging projects. We adhere to industry standards and use proven methods, ensuring long-lasting results and peace of mind, so contact us today to get started.

 

Waterproofing solution to a Basement close to a lake

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Delta Membranes – Casestudies

Cavity Drained Protection (Type C Waterproofing)

 

Overview

Imagine waking up to the tranquil sound of rippling water and stepping outside to a stunning view of nature and wildlife.

The scope of the project was to provide a waterproofing solution to a luxurious lake side home.  The new build property will sit within close vicinity of a 400 ft lake.

The developer, a successful London property developer, approached Delta to undertake the waterproofing design.  The developer, having previously had a prosperous relationship with Delta, once again sought Delta’s expertise in this project success.

The property itself being new build, was constructed from a Type B, waterproof reinforced concrete to provide a first form of waterproofing protection, with both Type C, and Type A, waterproofing solutions being incorporated to the structure to provide two forms of protection.

It is essential for the success of any project involving below ground structures that strategies for dealing with all external sources of groundwater, surface/flood water are considered from the very earliest stages of the planning and design process.  Particularly when a structure is sited within metres of a body of water.

When it comes to residential, commercial or any structure below ground, waterproofing is a critical component within the construction process for protecting and preserving a building.

Methodology

Applying all principles of waterproofing design (BS 8102:2022 Protection of below ground structures against water ingress. Code of Practice.), this project required a strategic, deliverable, approach.  Following site inspections and desk top studies, consideration was given to the need for combined protection, the need for continuity in the solution, the form and feasibility of repair of the systems, the weather/environment effect on systems, and the durability of the systems and performance over time.

With no one-size-fits-all when it comes to waterproofing design.  The property would sit in a high-water table, with de-watering required throughout the excavation process to temporarily lower groundwater levels, to allow stable conditions below the natural groundwater level.

The basement once constructed will sit 2 metres below the water level of the lake.  With sump pumps being installed at an even lower level (approximately 4m below the surface of the lake).

Prior to the installation of the Type C system, coved fillets were created at critical floor/wall junctions. Koster Polysil TG 500 was used to prevent the leaching of free lime in the new concrete.  Koster Polysil TG 500 if often used in combination with Delta cavity drainage membranes and basement drainage systems.

Delta MS 500 was securely fixed to the internal walls using Delta’s specialist fixing plugs, with Delta MS20 installed to floors.

Below the floor membrane perimeter drainage channels were sited within the rebates allowing for suitable drainage of any future water ingress and this being diverted to suitable discharge point (on this occasion a mechanical pump system).

Part of this ‘controlled system’ is basement drainage.  Any water ingress which penetrates the basement, is directed into perimeter drainage channels which this then efficiently disperse to a sump pump station.  Once collected in the sump pump chamber, the water is then pumped to a suitable evacuation point.

The need to service and maintain the drainage elements of type C waterproofing systems is paramount to long-term success.  Inspection ports were included in the perimeter channel with a groundwater sump pump located to give easy access for periodic servicing.

A Foul water pump station was incorporated into the design, to discharge foul water from the basement’s bathroom facilities.

After the Type C System was installed the all-important integrity testing was undertaken to exercise the waterproofing system in worst case scenario.

Working in partnership with the developer, Delta designed a bespoke Type A waterproofing approach to the light-well of the property.  Light wells being open element of the structure will require a suitable waterproofing approach.  Basement light-wells are earth retaining and are subject to lateral penetration from groundwater.  Lateral penetration is a caused when the external ground level is higher than the building, so water and moisture is able to penetrate the walls.  Light-wells can also be affected by rainwater, with heavy rain, light-wells can fill up, with the potential for water to cascade into the basement.  By waterproofing the envelope of the structure, this avoids potential risk.  Incorporating Koster NB 1 to the light-well was a simple solution.  Koster NB 1 with its ability to cope with both negative and positive pressure ensured that the accommodation areas would be kept dry, while the surface water pump station would manage any excess rainwater, to ensure the area is permanently protected and kept dry.

Incorporating a sump pump system for managing external surface water from light-wells is a great cost-effective solution.

Products Used

  • Delta MS 500
  • Delta MS 20
  • Koster NB 1 Grey
  • Koster SB Bonding
  • Koster Repair Mortar
  • Koster Polysil TG 500

Case Study Results

This unique project required a complex waterproofing design.  A key element to the success of this project has been the partnership between manufacturer/waterproofing designer and developer.  The developer has embraced Delta’s technical approach to fully understand Delta’s design principles, products, and compliance with specific standards for quality, reliability, and performance.

We wish the developer and his family lots of love and happiness in their new home.

Brooke House – Waterproofing Multi-Level Luxury Residential Basement

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View the technical drawings on the Delta Membrane System website

View the applications on the Delta Membrane System website

Overview

 

 

 

 

 

 

 

The scope of the project was to facilitate a combined waterproofing solution for a 2,000m² luxurious subterranean space which includes a double-level basement that will accommodate a cinema room, spa wing and swimming pool, changing, and screening rooms, servery, storage & laundry wing, plant rooms and other accommodation.

Delta Registered Installers, Knowles were appointed as principal contactor to collaborate with the architects to fulfil the role of Waterproofing Design Specialists in providing a reliable, watertight solution for this £100m project.

Knowles created combination waterproofing design which was both compliant with British Standard 8102:2009 2009 ‘Code of Practice for Protection of Below Ground Structures Against Water from the Ground’.

Combination waterproofing systems can offer optimal structural protection against water ingress.

 

 

 

 

 

 

Some designers will specify two forms of waterproofing.  These specifications “combination” Types A, B & C systems to achieve the desired waterproofing performance and to meet requirements of BS8102:2009.  It is always prudent to source these systems, if possible, from a sole source supplier, as this factor will dramatically in reducing risks associated with compatibility of products and assists with technical design issues.

Combination systems are an ideal solution for convoluted/difficult shapes to waterproof and provide continuity of waterproofing design.

In this instance, Knowles suggested a robust solution consisting of Types A, B and C waterproofing for a total risk averse solution.

The project required Grade 3 protection – No dampness or water penetration is acceptable.

Methodology

Delta Registered Installers, Knowles are a leading construction company, specialising in super-prime residential and commercial schemes.  Specialists in complex projects, Knowles deliver projects from concept to completion, including shell and core, subterranean, superstructure and fine finishes.

With many new basement projects, the basement is phased and constructed during the start of the build process.  Knowles with ease overcome issues encountered during the excavation and tolerances with 30,000m³ of rock and soil being removed to build an open cut basement.

 

 

 

 

 

 

Between the design concept phase and construction, changes were needed to the initial waterproofing design.  In limiting the impact of these design changes on project cost and identifying actions required, Delta were on hand.  David J. Symes, Delta’s Co-Managing Director attended design meetings and supplied strategies for suitable resolution.

In addition to our Type A and C waterproofing systems, David was delighted to introduce to Knowles our new (Type B) watertight concrete additive, Koster BDM.  Koster BDM had previously been used in Europe and extensively in other countries.  Koster BDM is a ccrystallizing integral waterproofing additive for concrete and was supplied for a volume of 3000m³ of waterproof concrete poured over a period of 12 months. The tallest walls were required at 6.750m x 0.5m thick, with the largest spanning slab 10,700m².

Waterproofing concrete offers structures numerous benefits such as strengthening the structure (waterproof concrete lets in less moisture, causing fewer cracks, which means it is less vulnerable to the elements), whilst reducing maintenance costs, all designed to BSEN1992 Euro code 3.

Prior to the pour of the concrete slab, Delta DualProof was utilised.  DualProof is a pre-applied, fully, and permanently bonded, composite sheet waterproofing membrane, consisting of a special non-woven Fibre-Tex fleece co-extruded with a highly flexible PVC membrane designed for use with structural reinforced concrete.  Freshly poured concrete is embedded completely into the special designed and developed fleece, creating a unique and permanent mechanical bond.

For the vertical waterproofing, Koster Deuxan2C was expertly spray applied by Knowles. The waterproofing layer was then protected with Delta Geo Drain Quattro, prior to backfilling, which is a combined drainage and protection layer, capable of a loading of 40 metric tonnes.

Delta’s Type C system was used internally, providing negative side waterproofing.

Prior to the installation of the Type C System, all new concrete was treated with Koster Polysil TG 500 to prevent the leaching of free lime, with all construction joints sealed using Koster Repair Mortar Plus.  In a full belts and bridges approach, Knowles applied a closed layer of Koster NB 1 sealing slurry to prevent migratory dampness.

Delta’s MS 500 membrane was applied to all vertical earth retained elevations, linked between intermediate level slabs via a concrete bund incorporating Delta drainage channels which was piped from upper to lower level via vertical pipes, with the all-important inspection ports added at approx. 8Lm intervals to ensure that the drainage aspects are fully maintainable and in accordance with BS 8102:2009.

Delta MS 20 membrane, which has a 20mm studded profile for greater drainage capacity, was used across the lower basement ground bearing slab, with the Delta perimeter channel incorporated to provide a suitable drainage solution which led to Delta bespoke sump pumps.

 

 

 

 

 

 

Delta provided a range of bespoke sump chambers to complement the internal Type C Waterproofing solution, all with our latest WIFI enabled high water level alarm which offers predictive maintenance and battery back-up systems to provide 24/7 remote monitoring, acting as a virtual engineer on site, reducing the requirement to conduct unnecessary servicing and reducing the structures carbon footprint.

The range of Delta products used in conjunction with Knowles expertise was extensive and includes:

Products used:

  • Delta MS20
  • Delta MS 500
  • Delta Geo-Drain Quattro
  • Koster Deuxan 2C
  • Delta DualProof
  • Delta Drainage channels & connectors
  • Koster NB 1 Grey
  • Koster SB Bonding Emulsion
  • Delta Dual V4 Submersible pump stations
  • Koster Micro Grout
  • Koster BDM

Case Study Results

Delta’s site services team delivering an exceptional quality assurance and training service throughout.

Knowles have provided a complete bespoke watertight solution following the guidelines set out in BS 8102:2009, with all works undertaken to a high standard and delivered on time, despite changes to the waterproofing design.

Delta is privileged to have been involved in this phenomenal project, in the words of David J. Symes “In my opinion a serious feat of engineering.”

 

 

Delta Amphibia Pre & Post Applied Membrane Awarded BBA

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BBA Award for Delta Amphibia, Pre- Post Applied Membrane

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We are proud to announce that our Amphibia, a pre- and post- applied fully bonded waterproofing membrane with reactive core, this hydro-reactive, self-healing, self-sealing multi-layer waterproofing system which can be applied on vertical and horizontal areas of new construction has been awarded BBA Certification, rubberstamping Delta’s rigorous approach to product specification and assessment.
Agrément Certificates ensure products and systems that have passed a series of comprehensive assessments – including laboratory tests, on-site evaluations, quality management checks and inspections of production.

Perfec_Bind_Amphibia_BrochureCertification includes:

•  factors relating to compliance with Building Regulations where applicable
•  factors relating to additional non-regulatory information where applicable
•  independently verified technical specification
•  assessment criteria and technical investigations
•  design considerations
•  installation guidance
•  regular surveillance of production
•  formal three-yearly review.

BBA certification is a mark of quality, safety and reliability and is recognised by building control, government departments, architects, local authorities, specifiers, and industry insurers.

Delta Amphibia – Pre- Post Applied Waterproofing Membranes

Perfec_Bind_Amphibia_InstallKey factors assessed included:

  • Resistance to water and water vapour — the system provides an effective barrier to the passage of water under hydrostatic pressure and water vapour from the ground.
  • Resistance to mechanical damage — the system will accept the limited foot traffic and loads associated with installation.
  • Durability — under normal service conditions and when suitably protected, the system will provide an effective barrier to the transmission of liquid water and water vapour for the design service life of the structure in which it is incorporated.

NHBC Standards 2018

Amphibia rotolo + ScatolaIn the opinion of the BBA, Delta Amphibia, if installed, used, and maintained in accordance with this Certificate, can satisfy or contribute to satisfying the relevant requirements in relation to NHBC Standards, Chapter 5.4 Waterproofing of basements and other below ground structures.

Where Grade 3 (BS 8102:2022, Table 2) waterproofing protection is required, and the below ground wall retains more than 600 mm (measured from the top of the retained ground to the lowest finished floor level).

In the opinion of the BBA, the system is suitable for use on existing structures when installed and used in accordance with this Certificate and NHBC Standards for Conversions and Renovations, taking account of other relevant guidance within this document on the suitability of the substrate to receive the system, and where necessary, the relevant Chapters of NHBC Standards.

BS 8102:2022

Delta Amphibia satisfies all grades of waterproofing in accordance with BS 8102:2022, Table 2 as Type A, Barrier Protection System in accordance with section 8, Type A (Barrier) Protection – Sub Section 8.2.4, Active Core Liners and Table 3, Waterproofing Barriers.

CE marking

The Certificate holder has taken the responsibility of CE marking the system, in accordance with harmonised European Standard BS EN 15814:2011.
For more information on our Amphibia Membranes visit our website at www.deltamembranes.com.

What is cold applied liquid roofing/waterproofing?

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What is cold liquid applied roofing waterproofingAs the name implies, cold applied liquid roofing/waterproofing is the use of a liquid waterproofing system without the requirement of heat.

Waterproofing roofs (whether it’s a flat roof or podium deck) is one of the most important structural requirements of any building. A watertight roof performs a vital function in protecting a structure.

When water starts to stand on a roof, not only can it lead to structural damages, it can also reduce the roof’s lifespan.  In the roofing industry, ponding water refers to water that has stood flat on a roof for longer than 2 days following precipitation.  Ponded water on roofs can also be a breeding ground for micro-organisms and other bacteria. This can be particularly problematic where the roof is protecting a hospital or school.  Flat roofs are a regular feature on public and commercial properties such as schools, hospitals, leisure centres, warehouses and factories.

Cold Liquid Applied WaterproofingLiquid waterproofing systems or cold liquid roofing are a great cost-effective method for waterproofing both new and existing roofs.

Simple to install and long-lasting, there is little doubt that the introduction of liquid waterproofing has been one of the most innovating advances in the industry.

Cold liquid waterproofing is simple and ready to use, at once forming an effective barrier to water and humidity.

Due to cold liquid roofing’s easy to apply nature, it is suitable to a wide variety of uses.  Applied with a simple brush, it easily allows reach to the almost inaccessible of areas, meaning that critical areas for the overall quality of the waterproofing are continuously and completely covered, guaranteeing the total protection for surfaces.

Benefits

Roof Guard Group ShotsCold liquid applied roofing is significantly faster, safer and less labour intensive to apply than conventional roofing materials.

Cold applied roofing, requires no torches, burners, or other heating equipment during application, posing no fire risks.  A cold applied liquid waterproofer cures to form an elastomeric waterproof membrane. Practically bonding directly to a substrate, providing a seamless, UV-stable continuous system, able to contour any roof shape for intricate detailing.

Why cold applied liquid systems?

Cold applied liquid waterproofing systems are engineered to supply a fast curing, long-lasting, flexible, elastomeric solution.

Other benefits include:

  • Excellent adhesion to all kinds of surfaces
  • Chemical resistant
  • High resistance to extreme temperatures
  • Completely seamless waterproofing
  • No heat or special equipment needed

Delta provides a comprehensive Technical Support Service for architects, designers, engineers, specifiers and contractors, with guidance on product selection, design advice and installation guidance. Your building is one of your most valuable assets which needs to be protected to ensure its long-term durability. You need to be confident that you have made the right choice for your investment from the very start.

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