structural waterproofing

Double Award Win Celebrates excellence in UK structural waterproofing

Building Products Index Ltd January 5, 2026 Membranes, Waterproof Membranes, waterproofing Leave a Comment

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Delta Membrane Systems Limited was honoured with the ‘Sustainability’ and ‘The All Star’ Awards at The Property Care Association, Best Practice Awards ceremony this year. This double win follows our double win in 2024.

We are pleased to announce our success at the Property Care Association Best Practice Awards, where we have received two prestigious awards!!

During a fantastic evening at the iconic Manchester United Football Club, Old Trafford, which brought together our industry’s top professionals, we were delighted to take home a winners trophy for the ‘Sustainability Award’, and ‘The All Star’, a remarkable triumph for everyone involved. These awards acknowledge the hard work, passion, and dedication of the Delta team.

Sustainability – Winner

Delta had entered their pioneering “HLA Plus”. Delta’s HLA Plus is an advanced high-water level alarm offering real-time remote monitoring and notifications through the Delta Pumps App. The app features a user-friendly dashboard and numerous capabilities to safeguard pumping stations, ensuring continuous monitoring without subscription fees. The HLA Plus connects seamlessly to any new or existing system, providing both proactive and preventive functions. This smart technology is invaluable for property owners, facilities managers, service engineers, and waterproofing contractors.

The All Star – Winner

Delta nominated their Marketing and Communications Manager, Rachel Munro. Rachel, brings a unique skill set to the industry, showcasing a bold commitment to innovation and excellence. While construction roles are typically associated with on-site work, the industry’s success significantly relies on behind-the-scenes efforts. Rachel excels in these areas, and she is also a prominent advocate for women in the waterproofing industry.

All winners, finalists, images & videos can be found here – https://www.property-care.org/events/2025-property-care-awards/

Commenting on the achievement, Delta MD, Kevin Dodds, said: “Delta’s commitment to innovation continues with the Delta HLA Plus, exemplifying our dedication to providing new and unique solutions.”

“The Property Care Association, Best Practice Awards are among the most prestigious in the UK. Winning these two awards demonstrates the exceptional work by our team at Delta Membrane Systems Limited.

“At Delta, we consistently strive to uphold integrity in all aspects of our business. We are committed to environmental stewardship and carefully manage our plant operations to ensure sustainable practices.”

“The introduction of new products holds significant importance, not only for the industry but also for Delta.”

He continued “We’re so proud of our achievements and in the competitive structural waterproofing market it is a challenge to stand out from the crowd – we have proved our ability to do just that!”.

“Congratulations to all, and let’s strive for continued success next year.”

Tensile and Compressive Loads – Structural Waterproofing

Building Products Index Ltd September 25, 2025 Membranes Leave a Comment

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Tensile and compressive stress and strain are two common types. Tensile stress increases an object’s length, while compressive stress decreases it. These stresses help determine a material’s elastic modulus, indicating its stiffness.

Tensile and compressive loads are key in mechanics and engineering. Tensile load stretches materials, causing elongation. Compressive load compresses materials, causing them to shorten.

Tensile Strength

Tensile strength in structural waterproofing products is important to resist cracking and tearing under stress, preventing water penetration and ensuring a structure’s longevity. High tensile strength is vital in areas prone to movement, where the waterproofing solution must withstand stretching and elongation without failing.

Tensile strength is measured by conducting a tensile test, also known as a tension or pull test, on a material sample. This test involves applying a gradually increasing tensile force to the sample until it breaks, while simultaneously measuring the force and deformation of the material. The maximum force the material withstands before breaking, divided by its original cross-sectional area, determines its tensile strength.

There are three types of tensile strength: Yield strength (A) is the stress a material can handle without permanent deformation. Ultimate strength (B) is the maximum stress it can endure. Breaking strength (C) is the stress level at the point of rupture.

A third-party tensile strength test evaluates a material’s resistance to breaking untder tension. Conducted by independent labs, it provides an unbiased assessment of mechanical properties. Results verify the material’s suitability for high-stress applications.

Not all third-party construction product testing is the same. The goal is to ensure product performance and compliance, but standards, processes, and rigor vary between testing bodies.

It’s important to follow manufacturer’s instructions for safety, optimal performance, and longevity of products and equipment. This prevents accidents, injuries, and damage, while maximising efficiency and meeting warranty requirements.

Tensile strength is vital for crack bridging products as it measures the material’s resistance to breaking under tension. It enables the material to span and seal cracks without fracturing. High tensile strength is essential to withstand the stress and strain from crack movement, preventing further damage and water ingress.

Compressive Strength

Tension is a force that pulls objects apart, while compression is a force that pushes objects together.

Compressive strength measures a material’s ability to withstand forces that crush or squeeze it. It represents the maximum stress a material can endure before fracturing or deforming significantly under compression. Essentially, it gauges how well a material resists being pushed together.

Compressive strength is vital for building materials, especially those supporting loads. It’s essential in concrete foundations, columns, walls, bricks, masonry, and insulation used in floors and roofs.

Foundations transfer the weight of buildings into the ground. Concrete, often used for foundations, undergoes compressive strength tests to ensure it can bear the load.

Columns are vertical structural members, often made of reinforced concrete, that support beams and floors. Their compressive strength is crucial to prevent buckling under heavy loads.

Load-bearing walls must withstand forces from above. Bricks, concrete blocks, and some insulation types need enough compressive strength for this purpose. Floors and roofs must support the weight of people, furniture, and materials. Insulation in these areas needs strong compressive strength to avoid being crushed and losing its insulating properties.

Using materials with good compressive strength is vital for keeping a structure’s integrity.

Compressive strength of a membrane refers to its ability to withstand crushing or deformation under compressive force. It’s a crucial mechanical property, especially for membranes used in construction, insulation, filtration and waterproofing applications, where they may be subjected to significant loads.

Always follow the manufacturer’s guidelines for any construction or waterproofing product you use, regardless of general advice offered.

Manufacturer guidelines vary based on product types, materials, intended use, and regulations. These differences affect recommended installation, maintenance, and usage procedures due to each manufacturer’s unique processes and standards.

Ask Questions

We encourage you to ask questions about our products and services. Transparency and honesty are our core values. Enquiring helps us learn, understand, and grow. It allows us to gather information, clarify doubts, and gain deeper insights. By asking questions, we engage in critical thinking and problem-solving, essential for personal and professional development. This fosters communication, collaboration, and open dialogue, leading to better decision-making and problem-solving.

Training

Manufacturer training is vital for implementing best practices, enhancing skills, and boosting career opportunities. It keeps you updated with industry trends and new technologies, making you more competitive. Training also improves job performance, productivity, and confidence, leading to higher job satisfaction and personal growth.

Always Happy to Help

Delta’s office and field Technical Teams offer expert assistance to identify the ideal waterproofing system for your project, ensuring it meets your specific requirements precisely. For any inquiries about our products, we provide honest and accurate answers at all times.

Reach us at 01992 523 523 or drop us an email at info@deltamembranes.com.

Compressive Strength Delta Membranes structural waterproofing Tensile and Compressive Loads third-party tensile strength test Waterproofing system

Value Engineering in Structural Waterproofing

Building Products Index Ltd July 20, 2025 Waterproof Membranes, waterproofing Leave a Comment

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Value engineering is a method to deliver essential project functions at the lowest cost. It substitutes materials and methods with cheaper alternatives without losing functionality. Focused on functions rather than physical attributes, value engineering is also known as value analysis.

Value engineering reviews products in the design phase to cut costs and boost functionality, enhancing product value. It aims to produce items cost-effectively without compromising their purpose. The concept of Value Engineering began at General Electric Co. during World War II. During the war, there were shortages of skilled labour, raw materials, and component parts. Lawrence Miles and Harry Erlicher at G.E. sought suitable substitutes.

Aligning Value Engineering with Structural Waterproofing

Messrs Miles Erlicher defined product value as the ratio of function to cost. Function is the work an item is designed to perform, and cost covers its life cycle expenses. Increasing product value involves enhancing function or reducing cost. Value engineering includes analysing costs related to production, design, maintenance, and replacement.

Product value = Function

__________

Cost

Waterproofing requires a tailored design approach, as there is no one-size-fits-all solution. So, to achieve value engineering in structural waterproofing, consideration should be given to product, Product performance characteristics, installation, future maintenance and worst-case scenario, refitting flawed or failed systems.

Waterproofing is vital for maintaining the integrity and value of a structure. Poor workmanship, wrong materials, lack of preparation, or missed details during installation can cause failed waterproofing systems, leading to water damage and expensive repairs. Addressing waterproofing issues early ensures a structure stays in great condition. Although waterproofing costs only 2-5% of a building’s total expense, to rectify failed or flawed waterproofing, can account to nearly 80% of all construction-related problems.

Effective structural waterproofing relies on precise product selection and proper installation methods from the start.

Waterproofing Design

Waterproofing design is essential in construction, employing various methods and materials to prevent water ingress. Effective waterproofing design enhances building longevity and safeguards structures against water damage.

Three key stages to successful waterproofing: design, specification, and installation.

The waterproofing designer will assess “value” and incorporate this into their design. Not all waterproofing products/materials are equal. Different products offer varied qualities and features, so it’s important to choose the right one for the project.

A Waterproofing Design Specialist must know various waterproofing systems and BS 8102:2022. They should understand water sources, their interaction with structures, and soil flow. Structural principles and geotechnical knowledge are essential for working with engineers and interpreting soil reports.

Delta Technical Team

Delta’s Technical Team can help you find value engineering solutions for your waterproofing project. 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. Contact us today to optimise your project’s performance and cost efficiency.

Tel: 01992 523 523 or drop us an email at info@deltamembranes.com.

Delta Membranes structural waterproofing value analysis value engineering Waterproof membranes Waterproofing Design

What is a ‘Cavity Drain System’?

Building Products Index Ltd April 29, 2025 Membranes, Waterproof Membranes, waterproofing Leave a Comment

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Type C, Cavity Drainage Waterproofing – Delta Membranes

Waterproofing Below Ground Structures RIBA Approved CPD

Technical Drawings Type C – Drained Protection – Delta Membranes

A “cavity drain system” is a structural waterproofing solution that isolates internal wall and floor finishes from water, water vapour and dampness. This article explores cavity drain systems and cavity drain products.

Structural waterproofing is a term which covers materials and/or techniques to stop water from entering a building, especially below-ground, by creating a barrier against groundwater or other water sources. Buildings globally depend on structural waterproofing systems.

A cavity drain system, or Type C, waterproofing system, protects below-ground structures (or any structure that is wholly or partially earth retained from water ingress by allowing water into enter into the structure (via ‘a cavity’) and safely draining it away. A cavity drain system manages water entering a structure through external walls or floors, directing it behind a membrane into a controlled drainage system. This system safely diverts water to a disposal point, like a package pumping station.

Cavity drain systems are also known as Cavity Drained, CDM, Type C, Cavity Drainage and Cavity Protection. BS 8102:2022 ‘Protection of below ground structures against water ingress. Code of practice’ classifies Type C as “Drained cavity construction” and “Cavity Drained Protection.”

Key Components

Key components of a ‘cavity drain system’ are high-density polyethylene internal drainage membranes. These membranes are loose laid in flooring application, whilst being attached to the wall with surface plugs in vertical installations.

Water entering the structure is channelled into drainage systems (made up from basement drainage channels and collected in a submersible pumping station before being discharged at a suitable point. Additional key elements of a basement drainage system are high water level alarms and battery backups.

Cavity Drain Systems

A cavity drain system is fully maintainable, and an ideal solution for both new-builds, refurbishments, and historic buildings and structures. A cavity drain system offers a host of benefits, from easy and fast installation to ability to accommodate minor structural movements.

Cavity drain systems are highly effective and considered one of the safest and most reliable waterproofing methods.

Crossover

Certain cavity drain membranes can also provide protection in other fields. Such as AT 800, AT 800 is a cavity drain membrane that meets BS 8102:2022 and BS 8485:2015+A1:2019 standards, offering waterproofing and ground gas protection in one application. This membrane provides drainage protection in Type C waterproofing (Grade 3 environment) and acts as a barrier against Carbon Dioxide, Radon, and Methane gases. It also features high adhesion for applying flame retardants.

MS 500 Fire Retardant is an 8mm studded cavity drain membrane that achieves a Euroclass rating of B-S2, d0 (EN 13501-1:2018) and is suitable for internal walls and floors, protecting below ground structures from groundwater ingress with increased Fire Safety.

Need help with cavity drain systems?

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.

cavity drain system Delta Membranes high-density polyethylene internal drainage membranes structural waterproofing Type C waterproofing system Waterproof membranes

The Former Magistrates’ Court – Type C Waterproofing

Building Products Index Ltd October 21, 2024 Membranes, Waterproof Membranes, waterproofing Leave a Comment

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Casestudies – Delta Membranes

Technical Drawings (Structural Waterproofing) – Delta Membranes

Structural Waterproofing Product Data Sheets – Delta Membranes

Overview

The Future High Streets Fund (FHSF) is a program initiated by the government aimed at revitalizing underperforming high streets. The Former Magistrates’ Court is set to undergo a significant transformation, becoming a vibrant centre for cultural and creative endeavours. The new design will incorporate diverse workspaces and production areas to accommodate a variety of creative industries. The evolution of this site will not only involve the establishment of innovative working environments but also foster community interaction through entertainment events and social gatherings.

The building, steeped in 143 years of history, has stood unoccupied for the last two decades. This extensive period of vacancy has added another layer to renovation approaches.

Delta Registered Installers, Timberwise (UK) Ltd, were appointed as the Waterproofing Specialists to undertake the waterproofing design and installation of the subterranean space.

The basement, spanning a substantial 70m in length and 6.3m in width, required renovations. The comprehensive works encompass several rooms including a Plant room, I.T room, and Music rooms, each with its unique requirements and design considerations. This project promises to enhance the utility and functionality of these spaces, benefiting the entire establishment.

The waterproofing design was specified around identifying water sources and eliminating them, along with considering the structure design, a continuous system, sequencing, and installation. It also factors in future maintenance and serviceability, all in compliance with the standards set by BS 8102:2022. This standard, known as the Protection of below ground structures against water ingress, is the code of practice that governs the waterproofing industry.

Methodology

For this project a specialist system was required to provide an efficient, compliant, and future proof approach.

Working closely with the developer, Timberwise (UK) Ltd suggested incorporating Delta’s Type C, Fire Retardant, fully maintainable Cavity Drained System.

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 ‘Type C’ Waterproofing System serves as a practical waterproofing solution for both new constructions and renovation projects. It incorporates two essential elements: a Cavity Drainage Membrane and a Basement Drainage system. BS 8102:2022 (Protection of Below Ground Structures Against Water Ingress – Code of Practice) defines Type C waterproofing as a protection system. This system manages water that penetrates the outer shell of a building, collecting the water in a cavity created between the exterior wall and an internal lining/wall.

Before the Delta Type C, Cavity Drained system was put in place, all junctions between floors and walls were meticulously attended to. In the context of building structures, ‘junctions’ refer to the points or surfaces where different elements or components intersect. In terms of waterproofing design, these junctions are often perceived as “weak points”. They necessitate thorough detailing to guarantee a robust approach and ensure the effectiveness of the waterproofing system.

The previous flooring consisted of blue bricks, which were replaced by the main contractor. The new design incorporated rebates for drainage channels and sump chambers within the freshly installed concrete floor slab. This upgrade was meticulously planned and executed to enhance the functionality of the basement drainage system.

Before the Delta MS20 floor membrane was installed, a comprehensive flood test was carried out on the basement slab to ensure its integrity and suitability for the application. The flood testing process involves completely filling the basement slab with water and closely monitoring for any leaks or signs of water seepage.

Delta PT, was applied in the vaulted sections located directly beneath the structure. This specific installation permitted direct finishes.

Products Used

Delta Amphibia (lift pit)
Delta PT
Delta MS 500 Fire Retardant
Delta MS 20
Delta Drainage Channel
Delta Dual V3 Packaged Pumping Station
Delta Dual V4 Packaged Pumping Station

Case Study Results

Adopting a future-proof strategy is a proactive way of ensuring a structures longevity. The project was successfully completed within the set timeline and budget constraints. This showcases Timberwise (UK) Ltd’s commitment to efficiency and financial responsibility.

Delta Membrane Systems Ltd Delta Membranes structural waterproofing Type C Cavity Drained System type C waterproofing Waterproof membranes

Custom Fabricating Services – site specific pump station requirements

Building Products Index Ltd April 26, 2024 Building Drainage, Drainage, Pumping Systems, Uncategorized Leave a Comment

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Pump Calculators – Delta Membranes

Package Pumps and Basement Drainage Systems – Delta Membranes

Casestudies – Delta Membranes

Pumping Systems fabricated to any size and/or configuration.

Delta Pumps and Basement Drainage Distribution Hub is home to Delta’s in-house fabrication team. Our fabrication team not only fabricates the Delta 710, 910 and 800 Series chambers (used in structural waterproofing application) but also have capability and capacity to customize pumping systems to match any size and/or configuration to your specific site requirements.

All Delta pumping systems are fabricated from our dedicated Distribution Hub, a 3,500 sq. ft warehouse dedicated to pumping stations, packaged pump stations and basement drainage related products, from BBA Approved packaged pump stations, high water level alarms, control panels, battery backups to pipework and fittings, supporting the team’s ability to meet the growing demand for quality basement drainage items.

Along with fabricated pumping systems, Delta also offer loose package systems for new or existing RC sumps.

All Delta pumping systems are fabricated to included internal class E pipework, non-return valve(s) and guide rails, were applicable.

An extensive range of pumping stations can suit all types of application – Ground, surface, or foul water, single or twin discharge.

Our experienced inspection team thoroughly assurance check all Delta pumping stations before they leave the Distribution Hub to maintain consistent, expected quality levels of Delta pumping systems.

All Delta pumping systems are usually available on a next working day delivery.

Specification Services

Delta Pumps is the largest supplier of structural waterproofing application pumping systems. Our products are designed and fabricated in-house by our specialists to ensure high standards.

Our in-house team of Specification Managers are always happy to help to ensure your pumping systems suit your project. Simply complete a ‘Delta Pump Specification Sheet’ with your site requirements and let our teams do the rest. Delta’s Pumping System Specifications are not only site specific but also include technical details and design strategy whilst confirming to British Standards and Regulations.

To aid specification simply complete the information fields in our online pump calculator tools – https://www.deltamembranes.com/product-categories/pump-calculators/ – if pumping requirements are outside of standard stock range then click submit and our specification team will be on hand to assist.

Retrofitting or new

Delta’s pumping systems are suitable for new and retrofitting projects. We recommend consultation with a Delta Pumps Registered Servicing Provider/manufacturer with knowledge of pumps prior to replacing equipment to ensure the replacement pumping system operates in accordance with site specifics.

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.

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Product Focus – Koster KB Flex 200

Building Products Index Ltd January 30, 2021 waterproofing Leave a Comment

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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 on our website “How To” Video Guide – Koster KB Flex 200 – Delta Membranes 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: info@deltamembranes.com.

Christopher Burbridge Delta Membrane System Ltd Delta Membranes Koster Koster KB Flex 200 structural waterproofing

Newton’s Online RIBA-Approved CPD Video

Building Products Index Ltd April 21, 2020 Waterproof Membranes, waterproofing Leave a Comment

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Calling all Architects and Specifiers! Here at Newton Waterproofing Systems, we offer an online RIBA-approved CPD video that you can watch for free from your office or at home, at any time that is convenient to you.

Freely available to those who request it, our 18-minute long CPD video is presented by our Commercial Director Toby Champion, who has over 20 years’ experience in the UK waterproofing industry. The video is based on our top-rated, RIBA approved CPD seminar on ‘Structural Waterproofing Design Strategies to BS 8102:2009’ and will cover the following topics:

– The different forms of structural waterproofing systems available in the UK market.
– How to achieve the different environmental grades that are outlined within British Standard 8102:2009, the ‘Code of Practice for protection of below ground structures against water from the ground.’
– How combination waterproofing systems are specified for below ground environments on both new-build and existing structures.

If you are interested in accessing our online CPD, please email our Training Coordinator, Becky Woodley, on training@newtonwaterproofing.co.uk.

Once you and your colleagues have watched the video, you simply need to send your names and email addresses to us and we will provide you with your training certificates as proof of your efforts.

Basement Tanking damp proofing systems Newton Waterproofing Systems RIBA-approved CPD video structural waterproofing

Reliable BBA Approved Waterproofing products from Delta Membrane Systems Limited

Building Products Index Ltd May 30, 2019 Waterproof Membranes, waterproofing Leave a Comment

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Koster product details

Waterproofing: Factors to consider when choosing building materials

Building Products Index Ltd January 22, 2019 Waterproof Membranes, waterproofing Leave a Comment

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There is a wide choice of structural waterproofing materials available in the market and it can be difficult to determine the best option for your project.

We understand the complexity and competitiveness of the industry and the challenges this brings for manufacturers seeking to improve margins, reduce costs and improve predictability. Whether you’re involved in the specification, procurement and/or installation, we understand the challenges you face including managing financial risks, efficient delivery, or meeting legislative or environmental requirements.

When researching waterproofing materials, you will notice that the price differs widely from manufacturer to manufacturer. Rule of thumb – it is not always advisable to look for the cheapest!

Choose waterproofing materials that will serve you well. With potentially heavy consequences (from hefty fines to imprisonment) for using or specifying products in the UK that do not meet the mandatory legal requirements, it is strongly advisable to check the source of products you are planning to specify, use or install.

All manufacturers should be able to provide you with their CE Mark certification and Declarations of Performance (DoP) as a minimum.

Product Credibility

A BBA Agrément Certificate relates to the quality and performance of a product. Many manufacturers undertake costly and comprehensive assessments of their products, which include laboratory tests, on-site evaluations, quality management checks and inspections of production. If they meet these requirements, they are awarded a BBA Agrément Certificate.

CE Marking is a compulsory legal requirement. By placing a CE mark on a product, the manufacturer is declaring, conformity with all the legal requirements needed to achieve CE marking status. The manufacturer is thus ensuring validity for that product to be sold throughout the EEA (European Economic Area).

Regulation (EU) No. 305/2011 (Construction Products Regulation, or CPR) of the EuropeanParliament and of the EuropeanCouncil is a regulationthat lays down harmonised conditions for the marketing of construction products. Regulation EU No. 305/2011 requires all Cavity Drain Membranes/Cavity Membranes hold the CE Mark and have a DoP. Responsibility for ensuring CE Product marking lies with the EU based manufacturer, importer or distributor of that product.

BBA Agrément Certificate CE Mark certification delta membrane structural waterproofing waterproofing materials waterproofing membranes

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