DELTA MEMBRANE SYSTEMS LTD

DELTA HOUSE
MERLIN WAY
NORTH WEALD
EPPING
ESSEX CM16 6HR

Tel: 01992 523523
Fax: 01992 523250

Company Logo

Suppliers of: Basement tanking membranes, waterproofing membranes, structural waterproofing, cavity wall DPC, cellar waterproofing, cavity drainage membranes, waterproofing systems

DELTA is recognised as the UK’s market leaders in cavity drain waterproofing systems. They are the UK arm of Dorken Gmbh & Co KG, the world’s largest manufacturer of cavity drain membranes.

The Delta-Dorken alliance offers an extensive range of waterproof membrane systems, and ancillary products, including sump pump drainage kits, channel systems & more.

Delta also provide full technical support, and can be consulted through all stages of the project. Delta should be contacted early in the design process.

They also operate a Registered Installers scheme across the UK, and can provide details of specialist contractors for the tendering process, and to install the systems. Whether it’s new build, remedial, retrofit or refurbishment, Delta provides waterproofing solutions for basements, and buildings.

Delta Membranes CAD drawings are available - click here

Delta Membranes offer a wide range of CPDs - Click Here

Delta Membranes have a complete range to suit most tanking and damp proofing applications, these include:

Basement & extension waterproofing:

Whether you’re restoring a damaged basement or starting from scratch without any real damages converting a damp cellar or basement can be a surprisingly inexpensive way of increasing living space and can substantially increase the value of a property.

Waterproofing Floors, walls and Vaults:

In Soil retaining situations such as basements and vaults etc. The DELTA sealed system is recommended. All membrane junctions, fixing points, service entries and other protrusions are sealed with the DELTA Seal range of sealing products. Where active ground water is evident or expected drainage of one form or another should be incorporated into the specification. Our Technical staff are available to give advice in this respect.

Sumps and Pumps:

Packaged Pump Stations & Water Management Solutions for Collection of Groundwater & Foul Waste from Flooded Basements.

Cellar Damp Proofing:

Delta Membrane Systems are the world’s leading manufacturer of cavity and air gap membrane systems for Cellar Damp Proofing. Delta is used for Cellar Damp Proofing in new construction and refurbishment of cellars, basements, and all types of below ground structures.

 

Further technical information and guidance is available on the Delta Membrane Systems website or via the BPi download Library

These files are provided by the manufacturer. While Building Products Index takes every care to ensure the information is correct and up to date, we cannot be held liable for any out of date or incorrect information in them. Please check with the supplier before specifying or purchasing products.

1. DELTA Waterproofing System 500 Brochure
Providing Waterproofing Solutions

Published [28/03/17]File size [3038 KB]

2. Delta PT Brochure
Delta PT Delta Lath Waterproof Membrane

Published [03/04/17]File size [1236 KB]

3. Delta Basement Pump Drainage Catalogue
waterproof membrane

Published [28/03/17]File size [3929 KB]

4. Delta MS 20 Drainage Systems
High drainage capacity in double-shell structures

Published [29/11/16]File size [1648 KB]

5. Delta FM Membrane

Published [10/05/16]File size [2755 KB]

AQUAPROOF Wetroom System
Aquaproof wetroom tanking system

Published [03/04/17]File size [845 KB]

Delta Aquaduct Drainage Pipe

Published [03/04/17]File size [695 KB]

Delta Basement Protection with the Maxx Range
Maximum security for your basement waterproofing pumping system. A battery backup, telemetry alarm system.

Published [03/03/16]File size [1932 KB]

Delta Drain - Cavity drain membranes
We have a extensive range of cavity drain membranes to protect your property against the damage of water ingress caused by hydrostatic pressure (groundwater pressure). Our membranes can also be used as protection against rising damp as well as being gas proof.

Published [10/05/16]File size [537 KB]

Delta Dual Proof Leaflet
durable watertight & gas proof solution for below ground structures

Published [24/03/17]File size [1265 KB]

Delta Fassade
Breathable UV-resistant insulation protection sheet.

Published [10/05/16]File size [538 KB]

Delta Floraxx and Floraxxtop
Water-retaining drainage sheet with an integrated geotextile for perfect green roofs

Published [12/05/16]File size [1696 KB]

Delta Gas Barrier System Radonsperre
Radon protection

Published [12/05/16]File size [1863 KB]

Delta Geo Drain Quattro
DELTA GEO-DRAIN Quattro

Published [24/03/17]File size [1078 KB]

Delta Green Roof Brochure
Flat Green Roof Systems for Gardens, Terraces, Walkways & Parking

Published [28/03/17]File size [5285 KB]

Delta Horizontal Surfaces References
Horizontal surface drainage in the field

Published [28/03/17]File size [4775 KB]

DELTA Membrane Plaster Lath
damp proof systems

Published [12/05/16]File size [2252 KB]

Delta MS Drain
Enhanced waterproofing protection. Drainage

Published [10/05/16]File size [1345 KB]

Delta MS Sub Base Protection Main

Published [12/05/16]File size [882 KB]

Delta NP Drain
Compact two-ply composite sheet. High drainage capacity through specially-configured dimples.

Published [10/05/16]File size [595 KB]

Delta Polysil-TG500 Anti Lime
Treatment of new Concrete with Polysil

Published [24/03/17]File size [815 KB]

Delta Range of Waterproofing Membranes - 2016
waterproofing membranes

Published [29/11/16]File size [799 KB]

Delta Technical Planning Protection for Foundation Wall
DELTA® systems for foundation-wall protection, drainage, and waterproofing.

Published [12/05/16]File size [1208 KB]

Delta TERRAXX Installation Instructions
High-performance protection and drainage system for basements and flat roofs

Published [28/03/17]File size [4358 KB]

Delta TERRAXX Problem Solver
horizontal structural drainage

Published [18/05/17]File size [1141 KB]

Delta TERRAXX Technical
protection and drainage system for horizontal application

Published [18/05/17]File size [2647 KB]

Delta TERRAXX Vert+Horiz
Protection and drainage systems

Published [18/05/17]File size [2200 KB]

Delta Water Based Epoxy Coating
membrane to prevent rising damp in floors and walls

Published [18/05/17]File size [1060 KB]

KÖSTER 21
multiple use crack bridging waterproofing,

Published [29/11/16]File size [506 KB]

KÖSTER Bitumen Primer
Solvent-containing bitumen primer

Published [29/11/16]File size [256 KB]

KOSTER Company Brochure
waterproofing specialists

Published [29/11/16]File size [1793 KB]

KÖSTER Deuxan 2C
two component, polystyrene-free, fibrated, polymer modified bitumen

Published [29/11/16]File size [242 KB]

KOSTER External Basement Waterproofing
External Basement Waterproofing

Published [29/11/16]File size [1781 KB]

Koster KB Flex 200 Flyer
Immediate Waterproofing of Pipe and Cable Penetrations

Published [29/11/16]File size [274 KB]

KÖSTER KSK SY 15
Cold self adhesive bitumen membrane with HDPE top foil

Published [29/11/16]File size [241 KB]

KÖSTER Repair Mortar Plus
Fast setting, expanding repair mortar

Published [29/11/16]File size [234 KB]

KÖSTER Tanking Products
External tanking products

Published [29/11/16]File size [321 KB]

KOSTER Waterproofing of Wetrooms
Waterproofing of Wetrooms

Published [29/11/16]File size [753 KB]

ALARMS Pump Water Level .
ALARMS Pumping Station .
ANTI-FLOOD VALVES BS EN 13564 .
ANTI-FLOOD VALVES BS EN 13564 Types 0-5 .
ANTI-FLOOD VALVES Rodent Protection .
BALCONY Waterproofing .
BASEMENT DRAINAGE SHEETS DIN 4095 .
BASEMENT DRAINAGE SHEETS EN 13252 .
BASEMENT DRAINAGE SHEETS Filtration Combined .
BASEMENT DRAINAGE SHEETS Geotextile Combined .
BASEMENT DRAINAGE SHEETS Protection Combined .
BASEMENT DRAINAGE SHEETS Seepage Layer .
BASEMENT TANKING DRAINAGE Channels .
BASEMENT TANKING DRAINAGE Pumped .
BASEMENT WATERPROOFING BS 8102:2009 .
BASEMENT WATERPROOFING Cavity Drainage Systems .
BASEMENT WATERPROOFING Membranes .
BASEMENT WATERPROOFING Membranes HDPE .
BASEMENT WATERPROOFING Membranes HDPP .
BASEMENT WATERPROOFING Positive Side External .
BASEMENT WATERPROOFING Tanking Membranes .
BASEMENT WATERPROOFING Tanking Membranes HDPE .
BASEMENT WATERPROOFING Tanking Membranes HDPP .
BEDDING COMPOUNDS For Concrete .
BITUMEN Coatings .
BITUMEN Membranes Liquid
BONDING AGENTS .For Uneven Surfaces .
BUILDING REMEDIAL TREATMENTS .
CAR PARK Roof Waterproofing
CAR PARKING DECKS Waterproof Coatings .
CAULKING COMPOUNDS Polymer Based Non-Hardening
CAVITY BARRIERS Methane Gas Resistant .
CAVITY BARRIERS Radon Gas Resistant .
CAVITY DRAINAGE Boards .
CAVITY DRAINAGE Civil Engineering Applications .
CAVITY DRAINAGE DIN 4095 .
CAVITY DRAINAGE Membranes .
CAVITY DRAINAGE Membranes AGREMENT CERTIFICATE HOLDERS
CAVITY DRAINAGE Membranes DIN 4095
CAVITY DRAINAGE Membranes EN 13252 CE Mark
CAVITY DRAINAGE Membranes External Systems
CAVITY DRAINAGE Systems .
CAVITY DRAINAGE Tanking Membranes .
CAVITY DRAINAGE Tanking Membranes HDPP
CAVITY DRAINAGE Tanking Systems .
CAVITY DRAINAGE Waterproofing Membranes .
CAVITY DRAINAGE Waterproofing Membranes HDPP
CAVITY DRAINAGE Waterproofing Systems .
CELLAR DAMP PROOFING .
CELLAR WATERPROOFING . .
CELLAR WATERPROOFING BS 8102:2009 .
CELLAR WATERPROOFING Drainage Layer Combined .
CELLAR WATERPROOFING Membranes .
CELLAR WATERPROOFING Membranes HDPP .
CELLAR WATERPROOFING Rehabilitation .
CELLAR WATERPROOFING Systems .
CELLAR WATERPROOFING Tanking Membranes .
CELLAR WATERPROOFING Tanking Membranes HDPP .
CELLAR WATERPROOFING Tanking Systems .
CEMENT CONCRETE and MORTAR ADMIXES Bonding Additives .
CLIMATE CONTROL Thermal Stores Storage Mass Passive Phase Change Material (PCM)
CLIMATE CONTROL Thermal Stores Storage Mass Passive Systems
COATINGS Concrete Silification Treatment
COATINGS Efflorescence Control .
COATINGS Epoxy .
COATINGS Epoxy Coloured
COATINGS Epoxy Water Based
COATINGS Masonry Protection .
COATINGS Reinforcement Mesh .
COATINGS Vapour Barrier .
COATINGS Waterproof .
COATINGS Waterproof Polymer Modified Cement
COATINGS Waterproof Readymixed
COATINGS Waterproofing .
COATINGS Waterproofing Capillary Systems
COATINGS Waterproofing Underground Structures EN 15814:2002 CE Marked
COATINGS SPRAY ONLY APPLIED Protective Accelerator for Fresh Bitumen Emulsions .
COATINGS TROWEL ONLY APPLIED Bitumen .
COATINGS TROWEL ONLY APPLIED Waterproof Pre Tiling
CONCRETE: APPL. AFTER CONCRETE HAS CURED Bonding Slurry .
CONCRETE: APPL. AFTER CONCRETE HAS CURED Corrosion Protectors .
CONCRETE: APPL. AFTER CONCRETE HAS CURED Floor Hardeners .
CONCRETE: APPL. AFTER CONCRETE HAS CURED Hardeners/Dustproofers Surface Application
CONCRETE: APPL. AFTER CONCRETE HAS CURED Lime Inhibitors .
CONCRETE: APPL. AFTER CONCRETE HAS CURED Mineral Deposit Silification Treatment .
CONCRETE: APPL. AFTER CONCRETE HAS CURED Plugging Compounds .
CONCRETE: APPL. AFTER CONCRETE HAS CURED Repairing Cement / Repairing Mortar .
CONCRETE: APPL. AFTER CONCRETE HAS CURED Repairing Compounds .
COOLING SYSTEMS Thermal Stores Storage Mass Passive Phase Change Material (PCM)
COOLING SYSTEMS Thermal Stores Storage Mass Passive Systems
DAMP PROOFING Slurry .
DAMPCOURSES Bitumen Compatible .
DAMPCOURSES Cavity Closer Combined .
DAMPCOURSES Cavity Tray .
DAMPCOURSES Co-Polymer Thermoplastic (CPT) .
DAMPCOURSES DPCs .
DAMPCOURSES Floor .
DAMPCOURSES Gas Resistant .
DAMPCOURSES Methane Barrier .
DAMPCOURSES Polythene BS 6515 .
DAMPCOURSES Preformed Units .
DRAINAGE Basement Tanking DIN 4095
DRAINAGE CHANNELS Basement Water Collection .
DRAINAGE CHANNELS Perimeter Conduits Perforated Pipe
DRAINAGE MEMBRANES BS EN 13252 CE Mark .
DRAINAGE MEMBRANES DIN 4095 .
DRAINAGE MEMBRANES Exterior Applications .
DRAINAGE MEMBRANES Horizontal Applications .
DRAINAGE MEMBRANES Packaged Pump Stations .
DRAINAGE MEMBRANES Seepage Layer .
DRAINAGE MEMBRANES Sheets .
DRAINAGE MEMBRANES Structural Applications .
DRAINAGE MEMBRANES Sub-Surface Drainage .
DRAINAGE MEMBRANES Sumps .
DRAINAGE MEMBRANES Underground Applications .
EFFLORESCENCE CONTROL Concrete .
FLAT ROOF Waterproofing .
FLOOR COATINGS Waterproofing .
FLOOR COATINGS (SCREED APPLIED) Waterproof .
FLOOR SCREEDS Waterproofer Incorporated .
GAS Protection Systems .
GEOTEXTILES Drainage EN 13252 CE Mark
GEOTEXTILES Drainage Structural Drainage
GEOTEXTILES Drainage Surface Drainage Sheets Sheeting
GEOTEXTILES Filtration Filters / Filter Fabric
GEOTEXTILES Protection .
GEOTEXTILES Protection EN 13252 CE Mark
GEOTEXTILES Wall Drainage .
GREEN ROOF Drainage and Water Storage Elements .
GREEN ROOF Drainage Membranes .
GREEN ROOF Moisture Retention Mats Water Retention Drainage Sheet
GREEN ROOF Protective Moisture Mats .
GREEN ROOFS . .
GROUNDWATER Collection Packaged Pump Station Alarm Systems
GROUNDWATER Collection Packaged Pump Stations
HEATING AND COOLING SYSTEMS Passive Thermal Stores Storage Mass .
INSULATION SHEETS (THIN) Breather .
INSULATION SHEETS (THIN) Multi Foil Vapour Control Layer Incorporated
INSULATION SHEETS (THIN) Multi-Reflective .
INSULATION SHEETS (THIN) Reflective Paper .
INSULATION SHEETS (THIN) Thermal .
MEMBRANE Protection Sheets
MEMBRANES AGREMENT CERTIFICATE HOLDERS .
MEMBRANES Bitumen Self-Adhesive EN 13969:2004 CE Marked
MEMBRANES Bitumen Rubber HDPE Polyethylene Top Foil
MEMBRANES Breather Type .
MEMBRANES Breather Type Insulating
MEMBRANES Breather Type Timber Frame Construction
MEMBRANES Damp Proofing DPM .
MEMBRANES Drainage See Also DRAINAGE MEMBRANES:
MEMBRANES EPDM .
MEMBRANES Floor Flooring
MEMBRANES Gas Barrier .
MEMBRANES HDPE .
MEMBRANES HDPE AGREMENT CERTIFICATE HOLDERS
MEMBRANES HDPE Dimpled
MEMBRANES HDPE Drylining
MEMBRANES HDPE EN 13252 CE Marked
MEMBRANES HDPE Studded
MEMBRANES Methane Gas Retardant Methane Barrier
MEMBRANES Plaster Lath Combined .
MEMBRANES Polyethylene .
MEMBRANES Polyethylene AGREMENT CERTIFICATE HOLDERS
MEMBRANES Polyethylene Foil
MEMBRANES Polyethylene Self Adhesive
MEMBRANES Polypropylene .
MEMBRANES Protection Layer .
MEMBRANES Radon Barrier .
MEMBRANES Radon Resistant .
MEMBRANES Self Adhesive .
MEMBRANES Structural Waterproofing .
MEMBRANES Structural Waterproofing AGREMENT CERTIFICATE HOLDERS
MEMBRANES Studded Polyethylene .
MEMBRANES Sub-Base Course .
MEMBRANES Tanking .See Also MEMBRANES: Waterproofing
MEMBRANES Vapour Barrier .
MEMBRANES VCL Vapour Control Layer .
MEMBRANES Vertical HDPE
MEMBRANES Wall Internal Vapour Control Layer
MEMBRANES Waterproofing .
MEMBRANES Waterproofing CE Marked
MEMBRANES Waterproofing DIN 18195
MEMBRANES LIQUID APPLIED Bitumen Emulsion .
MEMBRANES LIQUID APPLIED Bitumen Liquid .
MEMBRANES LIQUID APPLIED Bitumen Rubber Emulsion .
MEMBRANES LIQUID APPLIED Bitumen, Polymer Modified .
MEMBRANES LIQUID APPLIED Crack Bridging .
MEMBRANES LIQUID APPLIED Crack Bridging EN 1504-2:2004 CE Marked
MEMBRANES LIQUID APPLIED Radon Gas Barrier .
MEMBRANES LIQUID APPLIED Radon Gas Barrier AGREMENT CERTIFICATE HOLDERS
MEMBRANES LIQUID APPLIED Radon Resistant .
MEMBRANES LIQUID APPLIED Tanking .
MEMBRANES LIQUID APPLIED Wetroom .
MORTARS Bedding .
MORTARS Concrete Repair .
MORTARS Concrete Repair Damp Areas
MORTARS Concrete Repair Wet Areas
MORTARS Fast Setting/Quick Setting/Rapid Setting .
MORTARS Plugging Compounds .
MORTARS Vertical/Horizontal Repair .
MORTARS Waterstopping Emergency Waterplugging Repair
MORTARS Waterstopping Leak Repair
MOULD INHIBITORS Mould Control Systems .
PAINT Waterproofing .
PIPE Hole Waterproofing Gap Sealing Systems
PLASTER Laths .
PLASTER Laths Damp Proof Membrane System
PLASTER Laths Damp Proofing
PLASTER Laths Waterproofing
PLASTERS Damp Resistant .
PLASTERS Waterproof .
PRIMERS For Bitumen Coated Surfaces .
PRIMERS For Bitumen Membranes .
PRIMERS For Concrete .
PRIMERS For Concrete Floors .
PRIMERS For Concrete Floors Moisture Suppressant Protection against Rising Damp
PRIMERS For Waterproofing Membranes .
PRIMERS: TYPES Silicate Based .
PUMP Alarms Cavity Drainage Systems
PUMP Chambers Polyethelene
PUMPING STATION Alarms .
PUMPING STATION Alarms Remote Monitoring
PUMPING STATION Alarms Telephone Alert
PUMPING STATION Battery Backup Units .
PUMPING STATIONS Complete Systems .
PUMPING STATIONS Packaged .
PUMPS: BY TYPE Backwater .
PUMPS: BY TYPE Cavity Drain Systems .
PUMPS: BY TYPE Cellar Drainage .
PUMPS: BY TYPE Drainage .
PUMPS: BY TYPE Groundwater Packaged Pump Stations
PUMPS: BY TYPE Sewage: .
PUMPS: BY TYPE Sewage: Integrated Backwater Valve
PUMPS: BY TYPE Sewage: Lifting Units
PUMPS: BY TYPE Sewage: Packaged Pump Stations BS 752
PUMPS: BY TYPE Sewage: Packaged Pump Stations EN 12056
PUMPS: BY TYPE Sewage: Packaged Pump Stations Systems
PUMPS: BY TYPE Sewage: Submersible
PUMPS: BY TYPE Submersible .
PUMPS: BY TYPE Submersible Aggressive Water
PUMPS: BY TYPE Submersible Automatic
PUMPS: BY TYPE Submersible Dewatering
PUMPS: BY TYPE Submersible Sea Water
PUMPS: BY TYPE Submersible Septic Tank
PUMPS: BY TYPE Submersible Sewage
PUMPS: BY TYPE Submersible Swimming Pool Water
PUMPS: BY TYPE Submersible Wastewater
PUMPS: BY TYPE Sump .
PUMPS: BY TYPE Sump Automatic
PUMPS: BY TYPE Sump Basement Drainage
PUMPS: BY TYPE Sump Packaged Pump Stations Systems
PUMPS: BY TYPE Sump Retro-Fit Retrofit Retro Fit
PUMPS: BY TYPE Wastewater .
PUMPS: BY TYPE Wastewater Packaged Pump Stations BS 12056
PUMPS: BY TYPE Wastewater Packaged Pump Stations BS 752
RADON Barriers .
RADON Cavity Barriers Radon Gas Resistant
RADON Protection Systems .
RADON Sumps .
RENDER Bonding Additives .
RENDER Laths .
RENDER Laths Damp Proof Membrane System
RENDER Meshcloth .
ROOF GARDEN Waterproofing .
ROOF WATERPROOFING Waterproofing Systems AGREMENT CERTIFICATE HOLDERS
ROOF WATERPROOFING Waterproofing Systems EPDM
ROOFING Felts: Breather
ROOFING Surface Treatments Waterproofing
ROOFING MEMBRANES Cold Liquid Applied .
ROOFING MEMBRANES Cold Liquid Applied Waterproof
ROOFING MEMBRANES Green Roof .
ROOFING MEMBRANES Pitched Roof Underlay Undertiling Underslating See Also ROOFING UNDERLAYS PITCHED ROOF MEMBRANES:
ROOFING MEMBRANES Structural Waterproofing .
ROOFING MEMBRANES Structural Waterproofing AGREMENT CERTIFICATE HOLDERS
ROOFING MEMBRANES Waterproofing .
ROOFING SHEETS Green Roof Drainage
ROOFING SHEETS Green Roof Drainage/Irrigation
ROOFING SYSTEMS Cold Liquid Applied .See Also ROOFING MEMBRANES: Cold Liquid Applied
ROOFING SYSTEMS Green Roof .
ROOFING UNDERLAYS PITCHED ROOF MEMBRANES Metal Clad Roofs .
ROOFING UNDERLAYS PITCHED ROOF MEMBRANES Metal Clad Roofs DIN 4102-7
ROOFING UNDERLAYS PITCHED ROOF MEMBRANES Textured For Metal Roofing
ROOFING UNDERLAYS PITCHED ROOF MEMBRANES Undertile Undertiling Underslating .
ROOFING UNDERLAYS PITCHED ROOF MEMBRANES Vapour Permeable Breather Type
SEWAGE Pumping Station Alarms
SEWAGE Pumping Station Alarms Telephone Alert
SEWAGE Pumping Station Battery Backup
SEWAGE Pumps .
SEWAGE TREATMENT Wastewater .
SEWER Repair Mortars .
SOIL PIPES and FITTINGS PVC-u .Plastic UPVC
SOIL PIPES and FITTINGS PVC-u by Colours Grey
SOIL PIPES and FITTINGS PVC-u by Sizes: Imperial .
STRUCTURAL WATERPROOFING AGREMENT CERTIFICATE HOLDERS .
STRUCTURAL WATERPROOFING Cavity Drainage .
STRUCTURAL WATERPROOFING Drainage Systems .
STRUCTURAL WATERPROOFING Green Roofs .
STRUCTURAL WATERPROOFING Membranes .
STRUCTURAL WATERPROOFING Membranes HDPP .
STRUCTURAL WATERPROOFING Plaza Decks .
STRUCTURAL WATERPROOFING Protected Roofs .
STRUCTURAL WATERPROOFING Substructures .
STRUCTURAL WATERPROOFING Systems .
STRUCTURAL WATERPROOFING Tanking Membranes .
STRUCTURAL WATERPROOFING Tanking Systems .
TANKING Drainage .
TANKING Drainage Pumped
TANKING Systems .
TANKING Systems Cavity Drainage
TANKING Systems Remedial Treatments
TANKING Systems Waterproofing Membranes
TANKING Systems Waterproofing Membranes HDPP
TANKING Systems Waterproofing Systems
THERMAL STORE HEATING Passive Systems .
UNDERGROUND STRUCTURES Waterproofing Systems .
UNDERLININGS For Waterproofing .
WASTEWATER Management Systems .
WASTEWATER Treatment Plants .See Also SEWAGE TREATMENT: Wastewater
WATERPROOFING LIQUIDS Clear .
WATERPROOFING LIQUIDS Cold Applied .
WATERPROOFING LIQUIDS Polymer Modified .
WATERPROOFING MATERIALS Preformed Profiles .
WATERPROOFING SYSTEMS . .
WATERPROOFING SYSTEMS AGREMENT CERTIFICATE HOLDERS .
WATERPROOFING SYSTEMS Bathrooms/Wetrooms .
WATERPROOFING SYSTEMS Compression Resistant .
WATERPROOFING SYSTEMS Floor .
WATERPROOFING SYSTEMS Power Shower Installations .
WATERPROOFING SYSTEMS Repair Compounds .
WATERPROOFING SYSTEMS Shower .
WATERPROOFING SYSTEMS Steamrooms .
WATERPROOFING SYSTEMS Undertile .
WATERPROOFING SYSTEMS Wall .
WATERPROOFING SYSTEMS Wall AGREMENT CERTIFICATE HOLDERS .
WATERPROOFING SYSTEMS Wall Rehabilitation .
WATERSTOPS .Waterbars .
WATERSTOPS Waterplugs Leak Sealing
WETROOM Waterproofing Systems Tanking Systems .
AQUADUCT Drainage Pipe
AQUAPROOF Waterproofing System
AQUATECNIC Waterproofing System
DELTA AQUADUCT Perimeter Drainage Channel/Conduit
DELTA AWAREMAXX Pump Alarms
DELTA DUAL Damp Proofing Membranes/Pumps
DELTA DUAL V3 SUMP Packaged Pump Stations
DELTA DUALPROOF Below Ground PVC Membranes
DELTA FLOORMAXX Submersible Sewage Lifting Pumps
DELTA FOUL V3 SUMP Packaged Pump Stations
DELTA FOULMAXX Packaged Pump Stations
DELTA MS 500 Cavity Drain Membranes
DELTA MS20 Drainage Sheet
DELTA PLASTER-LATH Membrane
DELTA PUMPFIX Backwater Valve
DELTA RETROFIT Retrofit Sump
DELTA STAUFIX Backwater Valve
DELTA SUMP PUMP Groundwater Pumping Station
DELTA SYSTEM 500 Membrane
DELTA- MAXXCONNECT Pump Alarms
DELTA-ALERTMAXX Pump Alarms
DELTA-AQUADUCT Drainage Channel
DELTA-AQUASTRIP Primers
DELTA-BAND Seal
DELTA-BIOTOPVLIES Green Roof System
DELTA-CHANNEL Water Collection Conduits
DELTA-COOL 24 PCM Cooling Systems
DELTA-DICHTNAGEL Nails
DELTA-DRAIN Drainage System
DELTA-FASSADE Breather Membrane
DELTA-FLEXX-TAPE Sealing Tapes
DELTA-FLORAXX Green Roof Membranes
DELTA-FLORAXX TOP Green Roof Water Retention
DELTA-FM Membranes
DELTA-FOXX Mastic
DELTA-GEO-DRAIN QUATTRO Protection & Drainage System
DELTA-KIESOL Concrete Silification Treatment
DELTA-KOM-TAPE Sealing Tapes
DELTA-LATH Membrane
DELTA-MAUERWERKSSPERRE Damp Proof Courses
DELTA-MAXX-PLUS Roofing Underlays
DELTA-MESSAGEMAXX Pump Alarm Remote Monitoring
DELTA-MS Membranes
DELTA-MS Waterproofing Membranes
DELTA-MS CLEAR Membrane
DELTA-MS DRAIN Basement Waterproofing
DELTA-NP Protection System
DELTA-NP DRAIN Drainage System
DELTA-POLY-TAPE Sealing Tapes
DELTA-POWERMAXX Pump Alarm Battery Backup
DELTA-PROTEKT Damp Proof Courses
DELTA-PT Damp Wall Rehabilitation
DELTA-REFLEX Vapour Barrier Sheets
DELTA-TERRAXX Protection & Drainage Systems
DELTA-THAN Adhesive
DELTA-THENE Membranes
DELTA-TIXX Sealing Compounds
DELTA-TRELA Roofing Underlay
DELTA-TRELA PLUS Roofing Underlay
KOSTER Glass Fibre Mesh
KOSTER 21 Crack Bridging Membrane
KOSTER AMS Mould Resistant Paint
KOSTER BDM Waterproof Concrete Admix
KOSTER BE RAINPROOF Weatherproof Coatings
KOSTER BETOMOR Repair Mortars
KOSTER BIKUPLAN Bitumen Membranes
KOSTER BIKUTHAN Bituminous Sealant
KOSTER CRISIN Resin Injection
KOSTER DACHFLEX Roof Coating Compounds
KOSTER DEUXAN Bitumen Coating
KOSTER KB-FIX Mortars
KOSTER KB-FLEX Gap Filler
KOSTER KB-POX Adhesives
KOSTER KB-PUR GEL Waterproofing Injection Gels
KOSTER KD BLITZ Mortars
KOSTER KSK Membranes
KOSTER MAUTROL Crack Injection
KOSTER POLYSIL Concrete Priming Solution
KOSTER SILOXAN Masonry Protection
KOSTER VAP 1 Vapour Barrier Coatings
KOSTER VGM Fast Curing Grout Mortars
POLYSIL Concrete Coating
QUELLBAND Waterstops
TEXTMAX Telemetry Systems

1-9 Seymour Street, London – Uses Delta Köster NB1

May 2017

In June 2013 it was announced that £500 million would be cut from the Metropolitan Police budget, 65 of the least used police front counters across the capital were proposed for closure. Marylebone Police Station had its fate sealed and the old police station closed in June 2013.

In 2015, Westminster City Council's planning department granted The Portman Estate planning permission to demolish the existing building at 1-9 Seymour Street and to redevelop the site. The scheduled demolition and clearing of the site was to make way for a new seven storey mixed use building, which was to include a two level basement, residential block, restaurant, retail space, commercial office block and school.

Some of the key challenges to this project were:

Ensuring a fully functional waterproofed basement which would accommodate the building and its future use.
Responsibility for full façade package including onerous performance criteria.
Multiple façade treatments with complex interfacing. Totally bespoke projecting glass and steel bays.
Bespoke vitreous enamel window liners.
Complex inner city environment with significant delivery challenges.

Methodology

1-9 Seymour Street is a 90,000 sq ft technically challenging project with a multiple façade.

Whilst the multiple façade is a key feature, it is also a disadvantage. A detailed design and a sound approach would be applicable to this project from the onset. The main contractor Galliford Try undertook the complex underpinning and formed the two levels of basement.

There is always a level of risk to damaging other buildings in the vicinity when dealing with demolition, re-build and basement construction, this risk was designed out in collaboration with renowned Architects Eric Parry. During this phase Galliford Try successful reached all of their goals without causing any damage to surrounding structures.

This project required a sympathetic knowledgeable basement specialist. Guardian Preservation with its reputation of working with homeowners, surveyors, contractors, architects, landlords and management companies was a natural choice. Guardian Preservation have a long established relationship with Delta Membrane Systems Limited and the two businesses have regularly shared experience and knowledge.

Both Guardian Preservation and Delta Membrane Systems Ltd were included at the design phase so were able to add consideration and give expert advice during the crucial planning stage. The basement dig was planned with the use of piling. On this project contiguous piling was deployed in conjunction with an inner RC lining wall.

Tim Herbert, CSSW qualified Structural Surveyor and partner at Guardian Preservation commenced his involvement in the project by giving careful consideration to products available, how they would be best suited to the project, that all BS8102:2009 standards and considerations were met, that the site was kept in a safe manner (health and safety) and that all Building Regulations were adhered to.

Tim’s approach to the project was to initially make contact with Delta Membrane System Limited’s David J Symes, Technical Director; along with David’s advice no assumptions were made. As with any basement construction consideration to groundwater, soil type, precipitation, topography and ground conditions/site analysis needed be addressed. Tim and David’s approach was to carry out full and throughout checks and to make a decision on what types of waterproofing would be best suited to this project, as no two projects are identical.

Waterproofing a basement ensures that the integrity of the structure is preserved whilst ensuring the usefulness of the basement. All basements should be constructed to cope with groundwater levels up to the full retained height of the basement.

Tim and David, during consultation took into consideration the British Standard BS8102:2009. BS8102:2009 is the code of practice for protection of below ground structures against water from the ground.

System Components
Guradian Preservation installing Delta System BS8102: 2009 sets out the scope and limitations for below ground structures, areas covered include:

waterproofing barrier materials,
waterproofing to construction joints within the RC frame construction,
ensuring buildings are structurally integral with watertight construction,
drained cavity construction,
ground water assessment,
ground water drainage; and
associated risk assessments.

An initial and important consideration in the overall waterproofing strategy was to ensure that all construction joints were appropriately detailed and waterproofed using Hydrophylic waterstops – such as Koster Quellband, which expands in contact with water to seal the construction joint.

Tim sought to incorporate materials that would best meet the objectives set out in Section 10 of BS8102:2009. Through knowledge and experience Tim sought David’s advice to incorporate 2 forms of waterproofing. With over 2500sq.M to cover Tim decided to incorporate Delta Membrane Systems Limited’s NB1 in-depth migratory crystalline slurry (a Type A System, a water barrier), and Delta MS500 and Delta MS20 (a Type C System, cavity drain membrane system).

Köster NB1 is a crystallizing mineral waterproofing slurry system which has a capillary plugging agent ideal for sealing against pressurized water (> 13 bar) and is watertight (>130m water head). Köster NB1 is a Type A waterproof system as set out in BS8102:2009. NB1 is suitable for new builds and in restoration properties. Köster NB 1 Grey is characterized by its excellent resistance to pressure and abrasion as well as excellent resistance to chemicals.

Tim opted to apply the Köster NB1 with a peristaltic pump providing a uniform spraying application, this method saves considerable man hours and is a great way to ensure complete even coverage.

Having applied a Type A waterproofing system Tim opted to add a secondary Type C system offering a robust waterproofing design.

By adding a secondary Type C system the basement would be completely watertight, if any water ingress was to occur in future the Type C system would be able to deal with this so as not to compromise the structure.

The Delta NB1 Koster MS500 is a premier cavity drain membrane and was used for the waterproofing of the walls. The Delta MS500 was fixed using Delta Qwik-seal plugs, fixed at 600mm centres with added benefits of Delta double-sided butyl tape to seal joints and overlaps. Delta butyl Corner strip tape was added to seal wall/floor joints.

The Delta MS20 is a champion cavity drain membrane used for waterproofing the floors. This is a heavy gauge version and incorporates 20 mm studs which offer extra drainage capacity. Delta MS20 was used as a “cavity former” for this type of new construction. The Delta MS20 is neatly rolled out across the basement floor; the sheets are overlapped and sealed in accordance with the manufacturer’s instructions.

Corner strip tape was added to seal wall/floor joints.

Case Study Results
Delta system installation by Guardian Preservations
The basement structure has been constructed to cope with any future water ingress and will withstand the test of time.

Galliford Try were thrilled with the outcome.

The project was achieved on time and within budget.

The finished project will be a truly stunning building that adds to the growing portfolio for all involved and will add to London’s ever evolving skyline and landscape.

Delta Membrane Systems Ltd proud winners of the Property Care Association Award

May 2017

Delta Membrane Systems Limited proud winners of the Property Care Association, Property Care Innovation and Sustainability Award 2017.

In 2016 when David J Symes, Technical Director of Delta Membrane Systems Limited (a PCA member), joined a focus group of experts across many disciplines under The Property Flood Resilience Action Plan, an umbrella headed by Dr Peter Bonfield OBE, Chairman, no one could have envisaged how the project would progress.

Avenues were explored to tackle flooding and flood resilience. Within the focus group were various experts allowing for a cross section of knowledge, those included Stephen Garvin, Director of the BRE Centre for Resilience, Clare Moriarty (Permanent Secretary, DEFRA), Emma Howard Boyd (Chair, Environment Agency), Gareth Howell (Managing Director, Direct & Retail Partnership, AXA Insurance) and Stephen Hodgson CEO (of the PCA) to name but a few.

The concept to join forces to find ways to prevent flood damage and ways to combat the devastation caused by flooding and to ultimately help families “get back in sooner”.

Delta Membrane Systems Ltd’s Technical Director, David J Symes produced a specification using tried and tested technology Delta Membrane Systems Limited have used for many years, historically in Basement or below ground structures/situations with consideration as to how we could adapt these products to work in flood situations.

With every scenario considered, a scheme was developed utilising a Delta Membrane System’s wall membrane “Delta MS500” and Delta floor membrane “Delta MS20” with a Delta sump and pump system (a Delta Dual V3 sump), with high level alarm “AlertMaxx” and a battery back-up “PowerMaxx”, part of the Delta Maxx family.

Flood water entering a home causing extensive damage to the fabric of the building which can lead to Insurers appointing a loss adjuster to assess the extent of the damage and the claim. The strip out following with the implementation of dehumidifiers to dry out the structure, (a process which takes numerous months) and Insurers bear huge financial costs. The financial burden not just with the structural repairs but also in providing alternative accommodation for their families left homeless.

In order to significantly reduce downtime, a Delta membrane can be fitted to the walls as demonstrated within the BRE test house. The Delta membrane is a HDPE extruded sheet, “its dimpled” and therefore provides an immediate barrier against the effects of salts and contamination caused by water ingress and or flood water allowing fast track reinstatement at the same time allowing the wall to dry out. Similarly when a solid floor is constructed; an overlay with Delta MS20 also demonstrated in the BRE test house which is a 20mm extruded sheet prior to the inclusion of finishes such as insulation and screed. In short the walls and floor have been lined with a cavity drain membrane which provides an air gap.

Secondly, David suggested making the structure more resilient by installing a Delta perimeter drainage channel rebated into the floor, this deals with and ground water which may rise through the floor in the future, or through the walls behind the MS 500, the drainage channel collects the water from beneath and behind the membranes and immediately evacuates it to the Delta packaged pump station which houses two submersible pumps, the lower end of the spectrum Delta pump will evacuate 2 litres per second per pump so a total of 240 litres per minute, we can offer alternative pumps that will evacuate 6 litres per second each.

A further modification, David instructed was a standard 110mm pipe to be laid within the slab and turned up 90 degrees to provide drainage outlets which finish flush with the floor finishes, which can be located in unobtrusive locations covered with a floor grill, as installed in the BRE flood house.

This was designed to pick up water that may bypass flood gates which should be installed in conjunction with the system and immediately evacuate it reducing damage, floors are typically tiles in floor mapped areas after flooding to reduce damage and other products can be installed such as waterproof insulation and plasterboard and screeds.

The Delta system can be installed both into existing properties and in new construction. As with below ground waterproofing each design is bespoke to the property and each associated risk.

The BRE have successfully demonstrated the resilience and resistance of the flood house. The Flood Resilience House is a great success and the foundation for incorporating these measures in our homes has been laid.

Congratulations to all at Delta, special thanks to David J Symes, Rachel Munro and Georgia Burbridge for their contribution to this great project.

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