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Delta Membrane Systems Ltd

The Former Magistrates’ Court – Type C Waterproofing

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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.

Achieving Continuity with Cold Applied Liquid Waterproofing Systems

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Technical Drawings (Structural Waterproofing) – Delta Membranes

Cold Applied Liquid Waterproofing – Delta Membranes

Casestudies – Delta Membranes

British Standard BS 8102:2022, Section 6.2.5 in particular – places emphasis on ‘Continuity of Waterproofing Protection’ advising that the waterproofing protection should be continuous from DPC level (150 mm above ground) and throughout the below ground structure.

Continuity of Waterproofing Protection from a design perspective is an important consideration, waterproofing designers are required to understand product combinations and the characteristics of systems from the outset.  Along with knowledge of product features and properties, designers are further faced with integrating these products into buildings and structures in a way that achieves a continuous and seamless waterproofing protection.

Additionally, other factors must be allowed for, such as the construction process, identifying the multitude of ways in which the waterproofing solution could be compromised and proposing methods for reducing and mitigating risk.  For new structures it is recommended that the structural design, waterproofing design, and construction processes are considered together.

Cold Applied Liquid Waterproofing Systems are becoming an increasingly popular choice not only for continuity of waterproofing but also as a sustainable construction method, due to the durability, versatility, and reliability of the products.

Benefits of waterproofing with liquid systems:

  • Seamless – filling cracks, gaps, and voids in substrates
  • Fully bonded
  • Greater ability to detail complex convoluted shapes
  • Strength and stability
  • Fast installation
  • Safe application – no need for heat
  • Rapid curing time and excellent adhesion to numerous substrates
  • Suitable for a multitude of waterproofing requirements, not only roofs
  • Compatible with other waterproofing combinations (such as external drainage and protection layers).

Each cold applied liquid waterproofing system comes with its own unique benefits, from crack-bridging to being suitable for heavily trafficked walkways.  It should be noted that cold applied liquid waterproofing is a great solution for ‘positive’ side waterproofing (external waterproofing system).

From flat cold roofs to balconies and terraces, retaining walls/basement walls to civil applications, cold applied liquid waterproofing is a great sustainable, cost-effective solution.

Delta Roof Guard

Delta Roof Guard is engineered to provide a fast curing, flexible, elastomeric solution for cold liquid applied waterproofing applications.  Delta Roof Guard CP and QC bonds directly to substrates, providing a seamless, UV-stable membrane that does not delaminate. Due to its flexible nature Delta Roof Guard follows the contours of any shape allowing for intricate detailing.  Once cured, Delta Roof Guard achieves a seamless finish with no joints or breaks. Offering rapid curing even in winter months.

Delta Roof Guard also comes with a comprehensive range of primers, all able to aid the adhesion of the liquid applied membrane system to the relevant substrates. Delta Roof Guard cold liquid waterproofing is lightweight, has great elasticity, meaning that it will absorb structural movements, whilst compensating for shrinkage or expansion due to changes in temperature. The ease and speed of application makes Delta Roof Guard Cold Liquid Waterproofing the perfect partner for complex positive side waterproofing projects.

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.

Delta Pumps celebrates 1st Anniversary – Basement Drainage Distribution Hub

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Delta Pumps – dedicated Basement Drainage Distribution Hub celebrates its one-year anniversary of opening.

Delta Pumps – Basement Drainage Distribution Hub, a 3,500 sq. ft warehouse dedicated to all things pumps and basement drainage related, first opened its doors on 1 January 2023 and is already a hit with basement drainage specialist contractors providing a range of services from bespoke pump station fabrication, technician training to dispatching pump systems and basement drainage related products, from BBA Approved packaged pump stations, high water level alarms, control panels, battery backups to pipework and fittings.

To celebrate the occasion the Delta team took time out to reflect on their achievements and cut into a delicious celebratory cake!

In its first 12 months, the Delta Pumps Distribution Hub has truly established itself as a practical yet welcoming ‘go-to’ venue for all things basement drainage and basement pump solutions.

Kevin Dodds, Delta’s Managing Director said “We couldn’t be more pleased with how Delta Pumps and its Basement Drainage Distribution Hub has established itself within the industry in such a short space of time.  Jason, Luke, and the team have been amazing and have worked tirelessly to bring together so many systems and solutions under one roof.”

“Delta’s dedicated Basement Drainage Distribution Hub highlights our commitment to responding to the ever-increasing demand for quality products in our industry and in single source accountability. Our continued investment into products under this single source accountability is laying the foundations for future growth, creating more employment opportunities, and confirming our position as an industry leader.”

 

What are basement drainage systems?

A key component of a Type C, Drained Protection System is the drainage system.  Often referred to in the industry as ‘basement drainage’ or ‘basement drainage systems’.

Type C, systems are water management systems.  The Type C System manages water that penetrates the external shell of a structure by collecting it in a cavity form between the external wall and an internal lining/wall.   There is permanent reliance on this cavity to collect ground water seepage and direct it to a suitable discharge point.   For Type C, Cavity Drainage Systems to function as intended, water ingress should be removed by gravity drain or mechanical pumping.

The purpose of a sump chamber is to collect and discharge (to a suitable evacuation point) any water ingress which has collected in the Type C, cavity drained protection system.

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.

Delta Amphibia, Reactive Core Liner

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Introduction to Delta Amphibia

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BBA Certificates

Delta Amphibia is a unique Self-Healing/Repairing, Self-Sealing, fully bonded Type A waterproofing membrane, utilising its advanced Reactive Core technology, Delta Amphibia will not only Self-Repair in the event of accidental puncture and Self-Heal, but will also Self-Seal.

Delta Amphibia is a pre- and post-applied waterproofing membrane which can be installed horizontally and vertically in a Type A waterproofing application.

The unique properties of Delta Amphibia are achieved through four active layers – a watertight barrier, Reactive Core which allows Delta Amphibia to Self-Seal and Self-Heal in the event of accidental damage, an active barrier with the ability to Self-Seal at overlaps resisting lateral movement of water and a strong bonding layer.

Pre-applied bonded membranes are used to waterproof concrete in basements and below ground structures on the positive side (outside). They are installed before the reinforcement underneath a base slab and vertically on a soil retention system, or in a formwork.

The unique Self-Repairing function of Delta Amphibia protects structures from water and moisture permeability in the event of accidental puncture.  Delta Amphibia’s unique Self-Repairing function is activated in the event of Delta Amphibia being damaged.

Delta Amphibia’s Active Core offers continuous protection at overlaps.  Delta Amphibia has excellent crack-bridging capabilities at places where cracks may occur. When pre-applied (before the concrete pour), the wet concrete is absorbed into Delta Amphibia’s fleece Bond Layer, integrally bonding Delta Amphibia to concrete.

Benefits of Delta Amphibia

  • Active protection for watertight waterproofing
    • Self-Repairing
    • Self-Sealing
    • Self-Healing
    • Self-Fastening
  • Vertical or Horizontal application
  • Absolute impermeability with no side seepage of water
  • Immediate mechanical protection, self-repairing also on accidental puncture
  • High resistance to hydraulic load
  • High flexibility and capacity to bridge cracks
  • Full mechanical bond to concrete
  • Extremely flexible – Resistant to movement and fissures in substrates

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.

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

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.

 

Delta adjusting and adapting to the “New”

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We are continuing to operate through the lockdown, surprisingly there are still lots of projects which require critical equipment, such as our drainage systems to ensure homes are maintained during this unprecedented period.

Delta Office 2018We are committed to providing a service that’s as close to ‘business as usual’ and our #TechnicalTeam have adjusted incredibly well to working remotely.  Surprisingly Delta has received an increase in online traffic.

We’re at the helm of shifting all things waterproofing online.  To help keep your projects moving, we have now introduced real time software to enable our Technical Team to offer Video Conferencing, CPD Seminars, Training Workshops, document exchange and to ensure we maintain our approachability and the ability to collaborate with your entire team, no matter where they are.

Our #TechnicalTeam can support you with:

  • Waterproofing Design
  • Flood Resilience, Resistance and Recoverability Design
  • Ground Gas Protection Design
  • Ground Gas Protection and Waterproofing Design
  • Specifications
  • Correct Product Selection
  • Best Practice Guidance
  • RIBA and CIWEM Accredited CPD Seminars
  • Training and Guidance.

There are currently some exiting ideas being discussed on Delta’s platforms, as we step into and become accustomed to our new reality.

Saving lives during the COVID-19 pandemic, is top of everyone’s agenda at present and we all must do what we can to support the Government, our NHS, colleagues, family members and the Delta Community.

building section 3d rendering

At this time of uncertainty, we’d like to thank you, our customers for your continued understanding as we work hard to maintain ‘business as usual’.

We will continue to post on our social channels, so please follow us and we’ll share some things to lift your spirits, whilst keeping to best practice advice and guidance.  Our online CPD is available on our website, as are our “how to” video guides.   We are planning on taking this opportunity to broaden our Brochure Suite with the introduction of new materials and to roll our new products – watch this space!

Set your shoulders, lift your chin – we’ve got this.

Stay well

Chris, Kevin, David & Brian

Delta Directors

 

Delta Membrane Systems Ltd – MAXXimum Security

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1513 Delta - AlertMaxx rgbSpeedy installation and reliability in operation, these are a couple of the many features found in the new AlertMAXX alarms from Delta Membrane Systems. They are used in sump installations, with the new DMS270 AlertMAXX being used for ground water and surface water applications, and the DMS269 AlertMAXX for foul water use.

Just two fixings are required along with the connection of mains power and a float switch for the AlertMAXX to be fully operational. Should a power cut occur, a battery backup has been incorporated into the design to ensure constant operation.

Each model has an LED display that shows the current status, high level alarm, previous cancelled alarms, mains failure and service reminder. ‘Volt free’ contacts are included as standard for connectivity to building management systems.

As an option, a cable can be supplied to download the internal log from AlertMAXX to either a PC or iPad showing all events that have occurred in the past.

The foul water option is supplied with a robust and reliable pendant type float switch which is fixed to the pipe-work or pump, or is left free hanging using a float weight to allow correct operation.

With the ground water AlertMAXX, a ‘broken finger’ float switch is fitted to give accurate operation and allow the alarm signal to be given after pump one fails, leaving pump two (where fitted) to operate normally.

The design of the new alarms also prevents accidental deactivation, although the alarm can be muted.

A low cost telemetry – known as MessageMAXX – can also be added.