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Waterproof Membranes

Delta win ASUC Award for Innovation and Sustainability

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Asuc Awards 3On Friday 24 November 2017, David J. Symes and Paul Green of Delta Membrane Systems Limited had the pleasure of attending the ASUC (Association of Specialist Underpinning Contractors) yearly AGM and Awards ceremony held at Cafe de Paris, London.

Simon Haslam, ASUC Chairman commenced the AGM and Awards ceremony by welcoming all.  John Patch gave the ASUC AGM update, followed by Simon updating members on another busy and full year.

ASUC AWARD (2)Guest speaker Eddie “The Eagle” Edwards thanked speaker sponsors and awards were given.

The last award of the ceremony was announced for Innovation and Sustainability, a category not usually associated with the Association of Specialist Underpinning Contractors, but it was felt that Delta Membrane Systems Limited, a member of ASUC who had taken part in the ‘BRE Flood Resilient Home’ project should be recognised for their innovative work in flood remediation.

ASUC Awards DeltaWe were so surprised and absolutely delighted to be recognised and named as winners of the Innovation and Sustainability Award.  Yet another great achievement for Delta Membrane Systems Limited!

As a growing and niche business, to win the category of Innovation and Sustainability of the year is a testament of our earnest effort, not only for us as a business but a great achievement to all involved in the flood remedial and waterproofing sectors.
Asuc Awards 4This is the second award Delta Membrane Systems Limited has won this year, having won the PCA (Property Care Association) Innovation and Sustainability Award back in May.

Delta Membrane Systems Limited is also in the running for the prestigious Construction News Specialist Awards for the categories of Innovation of the year (Non-Contractor) and Material Supply of the Year.

Delta Membrane Systems Limited has sought to improve the built environment through research and knowledge generation, to win this award is a great testament to our commitment and dedication.

#TeamDelta 1Christopher Burbridge, Director for Delta Membrane Systems Limited said “Receiving any kind of award is a great achievement; winning one from a great organisation such as Association of Specialist Underpinning Contractors (ASUC) is an achievement we are incredibly proud of.  Very few things in life are entirely the work of just one person and this is no exception, so I must pay tribute to the enormous contributions of all Delta staff, without which none of this would have been possible.  This award is as much for #TeamDelta, as it is for me and my fellow Directors.  The award will take pride in our training suite at our head office in Epping. With so many good projects to choose from, the judges must have had an unbelievably difficult job and I’d like to thank everyone who voted for Delta Membrane Systems Limited to win”.

David J. Symes, Technical Director for Delta Membrane Limited added, “With such strong competition, I really do count myself and the Delta Team lucky to win – but win we did.  On a personal level it was a great feeling to collect the award.  Travelling home with the award in my hand was an incredibly uplifting experience. Every time I look at the award, I’m reminded of the moment of collecting it.  The future looks bright!  Well done #TeamDelta”.

Delta Ground Gas Barrier System

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Brownfield land is a word specifically used to describe land which has previously been used forcommercial or industrial purposes with suspectedor known contamination (such as pollution or soil contamination) or land which has been in close proximity to pollution, hazardous waste or soil contamination.

The Government pledged in April 2017 to unlock Brownfield land to accommodate our housing shortage. Local authorities across the United Kingdom under new legislation now have to produce and maintain up-to-date, publicly available registers of Brownfield sites available for housing locally. These new registers will help house builders identify suitable Brownfield sites instantly, therefore unlocking land for thousands of new homes.

MemTech Gas Membranes

Delta Membrane Systems Limited is delighted to launched a new range of Gas Membranes, our MemTech Gas Protection range are BBA Approved and work in compliance with Building Standards (BS8485:2015, BRE 211.2015, CIRIA 665, CIRIA 735, CIRIA 748 and NHBC Standards) suitable for the protection against dangerous gases and chemicals when building on Brownfield and contaminated sites.

Our MemTech Gas Membranes work in harmony with our waterproofing/damp proofing membranes offering complete reassurance.

MemTech M1

MemTech M1 is a flexible, loose laid proprietary gas barrier for use on sites with Radon (RN), Carbon Dioxide (Co2) and Methane (CH4) ground gas. M1 will also protect against the ingress of Hydrocarbon Vapours where it is separated from the ground e.g. above a block and beam floor. The barrier is manufactured by an extrusion/coating process which

incorporates a two layer low density polyethylene membrane with a polypropylene reinforcement grid and an aluminium foil core. The membrane is extremely flexible for ease of installation and is robust enough to cope with site conditions.

Delta Membrane Systems Ltd. Tel: 01992 523 523
E: info@deltamembranes.com www.deltamembranes.com

MemTech M1 meets requirements of BS8485:2015 and BRE 211: 2015 Radon: Guidance on Protective Measures for New Buildings and Code of Practice for the Design of Protective Measures for Methane and Carbon Dioxide Ground Gases for New Buildings.

MemTech R1

R1 aMemTech R1 is a flexible, loose laid proprietary gas barrier for use on sites with Radon (RN) ground gas. The barrier is manufactured by an extrusion/coating process which incorporates a three layer, low density polyethylene membrane which is reinforced with a polypropylene reinforcement grid. The membrane is

extremely flexible for ease of installation and is robust enough to cope with site conditions. R1 meets the requirements of BRE 211: 2015, Radon: Guidance on protective measures for new buildings.

R1 Gas Barrier will also protect against damp
and therefore will act as a DPM in
accordance with CP: 102:1973, section 2 and BS: 8000-4:1989, and National Building Regulation Approved document C.

MemTech LGB

Memtech LGB 1MemTech LGB (Liquid Gas Barrier) is a ready for use specialist styrene butadiene latex based liquid applied gas membrane. It offers a simple, continuous passive gas prevention barrier against the ingress of Methane, Carbon Dioxide, Radon, Ground Gas, VOC, air & Moisture into buildings. LGB also acts as a waterproofing membrane complying with C2 and C4 schedule 1 of the Building Regulations 1991 for England and Wales. MemTech LGB meets the requirements ofMemTech LGB 4

BS8485:2015.

 

 

 

 

MemTech Void Vent

Void Vent25 - 1MemTech Void Vent is a cuspated HDPE core with a geotextile filter/separator bonded to a single side, in either 25mm or 40mm depth. MemTech Void Vent provides a means of ventilation when used in conjunction with an approved Gas Protection Barrier, in accordance with the recommendation(s) contained within NHBC Guidance and BS8485:2015. MemTech Void Vent 25 is optimised for maximum strength and performance. MemTech Void Vent 25 is independently tested and verified by UKAS accredited bodies.

MemTech Titan

Titan is a multi-layer flexible polyethylene membrane (a Gas and Hydrocarbon Barrier), with a unique core component which is designed and manufactured to provide a barrier to the most aggressive chemicals and to comply with current guidance on Hydrocarbons. Manufactured using the latest extrusion technology, this membrane is suitable in applications that are affected by Hydrocarbons. There is a common misconception that monolithic polyethylene barriers, such as HDPE and LLDPE are effective barriers to resist Hydrocarbons. This is an incorrect assumption, as Hydrocarbons will readily permeate through monolithic polyethylene barriers. Titan is specifically designed and manufactured to perform as a Methane, Carbon Dioxide, Radon, Ground Gas, VOC, air & Moisture and Hydrocarbon protection system. Titan complies with the latest codes of practice as published by BRE, CIRIA (C748) and BSI (BS 8485:2015). Suitable for use as Ground Gas/Hydrocarbon protection for NHBC GREEN, AMBER 1, AMBER 2, and RED site characterisations.

For help on the MemTech range of Ground Gas Protection, please contact Delta Membranes’ Technical Team on 01992 523 523 or email: info@deltamembranes.com.

 

Waterproofing of contiguous piles

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Delta Membranes waterproofing design

concrete spraying 013Contiguous piles have many advantages in the formation of a retaining wall. This method of construction involves the creation of a line of deep bores that are then back filled with concrete. The advantage of this method of construction is that it is possible to support the adjacent structure before bulk excavation takes place. Contiguous piles are particularly suited to sites with restricted access.
Of all the methods of piling it is typically the most cost effective and least time consuming. The wall consists of individual piles typically installed at centres 150mm greater than their diameter. This means that there are gaps between the piles and therefore contiguous piles are suitable only where the groundwater table is permanently below excavation level.

concrete spraying 023Even above the water table, below ground structures can be subject to water pressure.  Surface water run-off, perched water tables and defective water mains can all lead to significant water ingress. It is very important that the below ground structure acts as the first line of defence from a waterproofing perspective.

The waterproofing of contiguous piles can often be challenging. It is not possible to rely on a waterproof additive in the piles themselves. Likewise it is not possible to waterproof the pile externally.

Cavity drainage membranes are the most reliable and effective method of waterproofing basement spaces however when used as the only waterproofing system with contiguous piled walls, special attention is require. It is important to minimise the workload of the groundwater drainage system and any pumps. Also it is crucial that earth from between the piles does not wash out into the drainage system and cause blockages.

It is therefore important to maximise the structural water tightness of the wall, this can be achieved using a poured or a spray concrete liner in front of the piles

New build residential

concrete spraying 024In recent years the structural warranty providers have begun to recognise the importance of effective waterproofing design. NHBC in chapter 5.4 states that where grade 3 protection is required where “below ground wall retains more than 600mm, measured from the lowest finished floor level, the waterproofing design should include a combination of two of the Types of waterproofing systems”

This secondary waterproofing system would need to be internal, again it would not be possible to waterproof the outside of the piles.

concrete spraying 026Koster NB1 is a high performance migratory crystalline slurry that not only acts as physical barrier but also acts to waterproof the substrate itself. The NB1 slurry can be spray or brush applied to a concrete liner wall formed in front of the piles and continued across the structural slab before the installation of the cavity drainage membrane.

An alternative would be to use the Delta Dualproof membrane. This is a pre applied external waterproof system but is suitable in this application as it can be “sandwiched” between the piles and a poured concrete liner. The face of the piles would need to be levelled before application by filling the cusps with mortar before the DualProof is applied. A concrete liner wall is then cast onto the DualProof waterproofing barrier.

Capping Beam

A concrete ring is formed at the top of the piles in order to link them together. This is typically larger than the piles and will extend into the building space. This will also need to waterproofed if it is below the external ground level. Koster NB1 mineral slurry can be used to effectively waterproof the ring beam.

The Delta Membrane System Limited’s Technical Team offer an on hands approach to help with the waterproofing designs for any project.

Catalogue highlights basement pumps and drainage

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Transforming damp and dingy basements into comfortable living spaces is becoming more and more popular – thanks in no small part to the extensive range of products offered by Delta Membrane Systems. Many of these products now feature in a new catalogue from the company.

Over the years Delta has earned a reputation for being the ‘one stop shop’ for all
things needed in basement refurbishment and new-build. This includes a wide range of sumps, pumps and control technology – all of which is featured in the new brochure.

1701 Delta - Basement Pump Catalogue CMYKThis 36-page publication also features the company’s drainage channels and fittings, as well as giving a standard pump overview, and details of pump performance.

Useful information on pipework, commissioning and installation is given along with service and maintenance procedures. All the data is further enhanced by two-dimensional diagrams, three-dimensional cut-away photography, and performance graphs showing the technical information on many of the electrical products.

Frequently asked questions are also listed along with the company’s responses.

The expert team within Delta Membrane Systems is known for giving sound advice and solving potential problems. This catalogue gives a ready reference to enhance the expertise available from the company. Download now, click here! Or view on our website here…

BRE to showcase Delta System 500 in new flood resilient home

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delta-mem-3-victorian-houseDelta are working together with the BRE to demonstrate how the Delta system 500 can be an invaluable contributor to flood resilience helping homeowners limit damage and recover quickly from flooding.

Flood resilience
Flood resilience refers to measures that reduce flood damage to buildings in situations where water is allowed to enter. View case study

delta-mem-1-floods-minister-therese-coffey-flooding-back-in-sooner“Back in Sooner” – Floods Minister Therese Coffey shows Good Morning Britain what features can be installed to restore flood damaged properties and get residents back in to their properties sooner.

‘There are an estimated 5.2 million homes considered at risk from surface, river and coastal flooding. Preventative measures play a key role but given the scale of our vulnerability, we need to think delta-mem-2-proten-services-floodingmore practically about flooding and start to adapt to ‘living with water’ says Stephen Garvin, Director of the BRE Centre for Resilience. So fitting a house with resilient technologies and testing its ability to bounce back from water ingress is the first step on this journey.’ Read more

Flood recovery

The Delta System 500 can also be used for flood recovery where flood damaged buildings are restored and residents can be reinstated back into their home quickly as well as protecting the property from future groundwater ingress. Take a look at our case studies below, restored using the Delta System. View case study

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