"waterproofing"
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Waterproofing the Houses of Parliament
Newton Waterproofing Systems
Waterproofing this historic London landmark – external waterproofing with Newton 403 HydroBond, internal waterproofing with Newton System 500, installed by Newton Specialist Basement Contractor MacLennanUK.Newton Waterproofing were delighted to return for this project at the prestigious Houses of Parliament in London, a landmark that has dominated London’s skyline for over 150 years. Newton Specialist Basement Contractor MacLennan Waterproofing was approached to specify a guaranteed waterproofing solution for the new-build basement.After reviewing the technical drawings, MacLennan decided to bring the job to Newton, whose product range was perfectly suited to the project requirements. Newton and MacLennan are both privileged to be the companies chosen to share in securing the future of the Palace of Westminster.This complex project required the design and installation of an external waterproofing system, an internal cavity drain system, and a polyurea roofing system to ensure a high standard of waterproofing.Externally, Newton’s innovative ‘Type A’ 403 HydroBond membrane was applied extensively to ensure the necessary waterproofing around the basement, whilst internally, Newton 508 and Newton 520 membranes were both applied from floor to ceiling as part of Newton’s complete System 500 cavity drainage solution. With the finished structure in place, the waterproofing was finally completed by the application of both a polyurea coating and further drainage membrane to the roof deck of the basement.With a waterproof basement fully compliant with the requirements of BS 8102:2009, coupled with guaranteed protection against water ingress, this newly completed, large basement area, situated directly next to the River Thames, provides a durable and well-established waterproofing solution, utilising multiple Newton Systems to great effect.
Waterproofing an Exclusive Residents’ Club, London
Newton Waterproofing Systems
Located in Earls Court, London, the Lillie Square development will eventually stretch from Chelsea football ground to Kensington Olympia, and comprises of over 800 multi-million pound luxury dwellings. The development will also contain London’s largest private residents’ club, which boasts a lounge, library, private dining room, cinema, gym, spa facilities and 20 metre swimming pool with jacuzzi.Lillie Square Phase 1 required the formation of a watertight basement to house the luxury private residents club serving the entire property development. A large portion of this luxury clubhouse, including a swimming pool, spa, sauna, steam room, gym and function room, is below ground. The project therefore required robust waterproofing to protect the internal environment.Newton Specialist Contractor Stonehosue were consulted at an early stage to be part of the design team and provide a guaranteed waterproofing solution that would comply with the requirements of both BS 8102:2009 and any third-party warranty providers.The long-term partnership between Newton Waterproofing Systems and experienced Specialist Contractor Stonehouse has seen both companies partner on a vast portfolio of properties across the UK, and Stonehouse brought this experience to the table at Lillie Square.In order to provide the maximum level of protection, Stonehouse combined two Types of waterproofing in order to achieve a completely dry ‘Grade 3’ internal environment as per the recommendations of BS 8102:2009.The first of these products was the Type A, cementitious, liquid-applied waterproofing membrane Newton 107F, which was particularly suitable to this large-scale project due to the fact that it could be quickly spray-applied over large areas.The 107F was supported by the Type C Newton CDM System cavity drain waterproofing, installed throughout the basement area of the clubhouse, with four Titan-Pro sump chambers containing dual NP400 pumps, as well as Newton High Water Alarms, Inverters and Battery Back-Up protection creating a truly failsafe system.By working with Sir Robert McAlpine at the design stage it was possible to consider the lifetime performance of the structure as well as the cost in order to design and install thorough waterproofing protection.
Waterproofing an Air Traffic Control Tower, Scotland
Newton Waterproofing Systems
Heavy rainfall on the Orkney Islands meant that the basement room of Kirkwall Air Traffic Control Tower suffered from frequent flooding, with water levels reaching 1.2m at their highest point. Newton Waterproofing and Specialist Contractor Wise Basement Systems were called in to remove the existing water and then waterproof the structure to protect it from future flooding, all in just one week.Kirkwall airport is located on the main island of the Orkneys, 10-miles off the North coast of Scotland. Presented with a logistically challenging location and a tight project timescale of just 1 week, Newton had no hesitation in recommending the expertise of Wise Basement Systems as the specialist contractor to Building Surveyor Pick Everard.Getting involved at the very start of the project, Wise were immediately able to design, advise on and install a system to remedy the 2 inches of water in the existing basement of the Air Traffic Control tower.Cavity Drain Waterproofing, or ‘Type C’ waterproofing as it is defined by BS 8102:2009 is often the most effective means of achieving a completely dry ‘Grade 3’ environment in an existing structure below ground. It was therefore no surprise that Wise Basement Systems designed a Newton CDM System for this existing basement area.To begin, Wise installed 120m2 of Newton 508 on the walls and 80m2 of the recycled Newton 520 eco to the floor, above the closed-cell Fibran XPS 500-C insulation. The drainage membranes were supplemented with a perimeter channel of Newton Basedrain, directed to a Titan-Pro sump chamber containing two NP400 Pumps to remove the water.Finally, to ensure that the system will continue to work in all eventualities, even in a complete power outage, Wise installed a backup system with dual Northstar batteries and a Victron Power Inverter.Even with a project located 10 miles from the mainland, and 1 week to waterproof a basement with only a 600mm wide access hatch, Wise Basement Systems delivered a completely dry space for the client that was also compliant with BS 8102:2009 and backed by their guarantee.
Balcony Waterproofing and Fireproofing, London
Newton Waterproofing Systems
As part of the Wandsworth regeneration programme to increase the number of affordable homes, Wates Residential were awarded the contract to build a new, six-storey block of apartments on the Shuttleworth Road.The structure included 59 concrete balconies, all requiring waterproofing with a product with a minimum fire rating of A2-s1-d0, tested to BS EN 13501-1.Not only were Newton able to recommend a product that had already been used on a similar project this year, they were also able to recommend the expert services of Newton Specialist Contractor Arti Structural Waterproofing.The minimum fire rating of A2-s1-d0 now precludes the polyurethane and polyurea products that were commonly used on balconies, so Newton recommended the cementitious and modified-polymer Newton 103-S membrane. As well as carrying the required fire rating, 103-S can resist extremely high positive and negative water pressure, forming a hard, durable coating with a degree of elasticity that makes it ideal for protecting concrete.Arti also used Newton 203-RM to create smoothing fillets, and Newton 912-RT to reinforce the 103-S over the joints, details and changes in direction.On site, Arti also needed to work flexibly, as the programme could not proceed without the waterproofing and fireproofing of the balcony upstands. However, due to the propping of the concrete formwork to the floors above, Arti had to execute their installation in two phases of efficient and detailed waterproofing.Thanks to a meticulous eye for detail, as well as careful planning and thorough preparation of the concrete balconies, Arti were able to complete the waterproofing of all 59 balconies in two stages. This was managed as well as delivering the required A2-s1-d0 fire rating, and the installation was completed quickly without compromising the programme of the build.
Listed Vault Waterproofing in Central London
Newton Waterproofing Systems
Beneath the streets of Central London lies a network of Grade 2 Listed underground vaults. As Newton Specialist Contractors, Stonehouse were called in to waterproof four of these impressive structures and turn them into a completely dry commercial space. The four vaults were situated just North of the River Thames in Central London, a short walk from such famous landmarks as Smithfield Market and St Paul's Cathedral.The Grade II Listed structures are each over 4 metres in height, and form part of an impressive below-ground infrastructure network. Newton Specialist Contractor Stonehouse were asked to waterproof four of these impressive vaults for the multinational service provider KPMG, in order to turn them into useful commercial spaces.When waterproofing historic vaults such as these, the Newton CDM System provides the ideal solution as it is maintainable, requires minimal fixings and therefore avoids damaging the structure, and crucially is deemed as reversible should the structure need to be returned to its original condition in future.As an experienced contractor, Stonehouse proceeded with an expert installation of a full CDM System to the tricky vaults, including:508 Mesh membrane to the walls, for a direct plaster finish508 membrane and Fibran XPS 500-C insulation boards to the floor.Basedrain channels to direct any captured water towards two Titan-Pro sump chambers, each containing two NP400 pumps.Victron Inverter and a NorthStar battery for reliable backup power.Stonehouse completed an extremely complex and detailed cavity drain installation with precision, resulting in an exceptionally neat waterproofing system, and proving the benefits of using a specialist waterproofing contractor.
Waterproofing the London School of Economics
Newton Waterproofing Systems
In April 2016, the world-renowned London School of Economics announced that Grafton Architects were to design their next major project. The Marshall Building at 44 Lincoln’s Inn Fields, built by Mace Group, includes an extensive two-storey, mixed-use basement that will house plant areas, squash courts, changing facilities and a sports hall, covering a total of over 2,250m2 of floorspace and presenting quite the project for Newton Specialist Contractor Cast Contracting Ltd (CCL).Newton Specialist Contractor CCL were appointed to design, supply and install the waterproofing by principal contractor Mace Group in late 2019.To provide a completely dry, guaranteed solution on such a high profile project, CCL recommended the Newton CDM System.Otherwise known as Type C waterproofing, the CDM System is the safest and most reliable form of waterproofing.Prior to installation, CCL applied Newton 906 Lime Inhibitor to the new slab to prevent free lime from the concrete from affecting the drainage membranes. The Type A liquid waterproofing membrane Newton 103-S was also applied internally to many of the concrete surfaces as a barrier to water.With preparations complete, over 2,250m2 of Newton 520 eco membrane was installed to the floor and over 570m2 of Newton 508 membrane installed to the walls to create the Newton CDM System. A drainage system of Newton Basedrain channels also directs any water captured by the membranes to the point of discharge, and the whole system was sealed with Newton OverTape.Despite requiring dedicated delivery slots, and working to an extremely tight program of work, CCL were praised on the quality and speed of their installation, which was completed well within the time limit.The Newton recycling service was also a great success, recycling 115 kg of HDPE waste and therefore preventing over 132 kg of CO2 emissions.
Waterproofing the Hotel Football in Manchester
Newton Waterproofing Systems
Newton combined waterproofing systems were applied to the Hotel in Manchester as part of a complex waterproofing design. NSBC Trace Basements were chosen as experts to waterproof The Hotel Football.
Waterproofing Historic Leaking Vaults
Newton Waterproofing Systems
As part of their ongoing relationship with Imperial College London, Newton Specialist Contractor A.P. Gooch assessed and waterproofed 11 Victorian brick vaults beneath the streets of Kensington, London, after the existing competitor ‘waterproof render’ failed.Imperial College London is a world top ten university, and it's top-class educational facilities in Central London are constantly used by multidisciplinary students, including doctors, and nurses, for their studies. It was therefore crucial for AP. Gooch to perform the work whilst also creating minimum disruption to the college students.Following a full assessment of the vaults, A.P. Gooch decided that the best option was to install the tried and tested ‘failsafe’ Newton System 500 cavity drainage membrane solution in order to depressurise, capture and safely manage ingressing water away from the building. A.P. Gooch also committed to carrying out the entire installation at night in order to cause as little disruption as possible to the College’s students.By installing Newton 508 membrane with strategically placed Newton MultiPlug fixings, the system remained sympathetic to the historic structure beneath. Newton Basedrain was also installed in order to channel captured water to one of four Newton Titan-2 sump chambers, the compact size of which made them ideal for use in a structure with such tight size restrictions. Each chamber also contained primary and backup Newton CP400 pumps to ensure that there will always be a safe means of removing captured water from the building.Now fully protected by a maintainable system, compliant with waterproofing code of practice BS 8102:2009, all 11 vaults are now completely dry, providing safe and healthy individual study rooms for the medical students at Imperial College.
Waterproofing a 116-Bed Care Home, London
Newton Waterproofing Systems
Hammerson House will be a world-class, 116-bed residential centre for the elderly Jewish Community in Hampstead. Newton Specialist Contractor Cast Contracting Ltd (CCL) were approached during the planning stages to develop a comprehensive waterproofing solution for the extensive basement.CCL recommended the installation of a Newton CDM water management system to comprehensively waterproof the extensive basement. First, they employed the 8mm Newton 508 membrane to the concrete retaining walls of the basement. The 50mm thick Fibran XPS 500-C insulation was then installed beneath more 508 membrane across the entire concrete slab. Additionally, Basedrain drainage channel was installed around the perimeter, including inspection ports to provide a fully maintainable system.This entire system is served by a series of complete sump and pump systems, each consisting of primary and backup NP400 pumps, high water level alarms, and battery backup systems. These are all controlled by Newton’s advanced Control Panel-Pro to ensure a failsafe system, even during a power outage.Finally, Newton’s 107F cementitious waterproof membrane was spray applied to the concrete upstands of the lightwells and lift pits in order to complete the continuous watertight solution.
Waterproofing A New Doctor’s Surgery, Devon
Newton Waterproofing Systems
Newton and our Specialist Contractor Premier Contractors were called in to provide a complete waterproofing solution for this new Doctor’s surgery in Tavistock, Devon, after the main contractor found themselves struggling with the waterproofing design and installation on this unusual new building.
Waterproofing Luxury Houses, Yorkshire
Newton Waterproofing Systems
Rural Holmfirth in West Yorkshire was the site of this luxury, 12-property housing development. Built into an embankment on a sloping site, and with each unit expected to retail at £400,000, it was crucial that they were waterproofed to a ‘Grade 3’ habitable standard.
Waterproofing Retaining Basements on a Sloping Site
Newton Waterproofing Systems
Newton contractor Rymill Property Developments were approached by the owner of an old vineyard in Hampshire, in order to redevelop the site, with Newton providing advice for waterproofing retaining basements on a sloping site for three brand new, modern properties in line with BS 8102:2022.
Hydrostop AH25 Liquid Waterproofing - Why use a liquid on balcony waterproofing?
SIG Design & Technology
Rising up from its Thames-side site at Pimlico at the meeting of Millbank and Vauxhall Bridge, River Walk is an elegant new development of 116 high specification apartments with 170 crescent-shaped balconies, all of which need to be carefully waterproofed. Specialist roofing contractor Knight Asphalte Co Ltd is carrying out this task, using Hydrostop AH-25 liquid waterproofing.
ICF Waterproofing case study: Structural waterproofing products from Triton Systems have been specified for one of the largest ICF construction dwellings ever built in the UK.
Triton Systems
The 2,500m2 basement extends beyond the property where a blue-green roof will be created over a suspended podium deck to form part of the garden.
The Triton team worked closely with waterproofing and blue-green roof design specialists, EPG, to create a waterproofing strategy and utilised a comprehensive Construction Quality Assurance protocol agreed between Triton and EPG. The Triton team had been called in by main contractor, Era Build Ltd, to replace a previous supplier who had been unable to provide a warranty. After detailing was complete; Triton Approved Contractor, Cast Contracting Ltd (CCL), installed the systems.
Waterproofing Solution BS 8102:2009
Delta Membrane Systems Ltd
The scope of the project was to facilitate a waterproofing solution for a substantial brick built detached property with a large 3 elevation basement situated at the bottom of a steep sloping driveway. The basement when constructed had 1 form of external waterproofing incorporated during the build stage, however the system required a second form of internal waterproofing due to the location of the structure and high-water table, capable of protecting the luxurious basement from unwanted water ingress.The property’s driveway significantly slopes from street level to the front elevation of the property requiring a specialist waterproofing system to protect the structure.Working in conjunction with the homeowner, Timberwise’s CSSW qualified waterproofing surveyors specified a Delta Type C (Drained) Protection waterproofing system to provide the necessary Grade 3 (habitable environment) to enable to homeowner to fully utilise their basement space. For Grade 3 habitable environments, two types of waterproofing may be required.A Waterproofing Designer’s philosophy defines what they wish to accomplish in the design of their waterproofing system and which principles they will use to do so. Identifying a robust and suitable design philosophy is an important aspect when designing a continuous system, as this will not only directly impact in how users install the system but also in future maintenance which will directly impact on the property owner.
Remedial Waterproofing - Commercial Structure
Delta Membrane Systems Ltd
Waterproofing design is a key and critical component for successful construction of below ground structures. Whether it’s a completely new build or making smaller changes to an existing property, waterproofing design should never be overlooked.Waterproofing might account for just a small fraction of a building’s total cost, but waterproofing defects can result in catastrophic consequences. When waterproofing fails, the implications are significant.Delta’s MD, Kevin Dodds was approached to offer advice and guidance on a failed waterproofing system.The existing structure had an impressive 5-level basement which houses: kitchens, food storage and food preparation areas, spa, plant rooms and accommodation. Near to a large river, the site sited well within the water table. The original waterproofing system was based on the secant piled walls and a block wall internally to provide a basic drained protection system with drainage holes at various points to drain to various levels.Over time, the third floor had become completely saturated with all levels of the basement experiencing water ingress in varying levels from damp patches to significant “jets” of water and flows of water through the secant piles.With remediation waterproofing design strategies, it may take some time to specify a suitable system. It is important that investigations are thoroughly carried out by individuals with the capability of diagnosing the defect, assessing the extent of that defect, and recommending a suitable corrective measure.
Maintainable Waterproofing solutions
Delta Membrane Systems Ltd
The scope of the works was to design, specify and install a suitable waterproofing solution to 2 large properties engineered from ICF construction which required waterproofing. Areas where attention from a skilled specialist were required, was to the rear and two side walls which were earth/ground retaining.When specifying a suitable waterproofing solution, consideration to the final use of the building, designing a system to be maintainable and repairable along with a deep understanding of BS 8102:2009 is essential in ensuring project success.From a waterproofing design perspective, we use three grades to define waterproofing systems.These 3 grades are:Grade 1 – Some water seepage and damp are tolerable depending on the intended useGrade 2 – No water penetration is acceptableGrade 3 – No dampness or water penetration is acceptableIn existing basements and new build properties which will be habitable, Grade 3, is always required.
Remedial Basement Waterproofing
Delta Membrane Systems Ltd
When it comes to residential, commercial or any structure below ground, waterproofing is a critical component within the construction process for protecting and preserving a building. A poorly designed or installed waterproofing solution can fail leading to significant implications on the structure itself.Delta Registered Installers, Abtech (UK) Ltd were called upon to give assistance on a particularly technically complicated project where approaches to waterproofing design and installation had been incorporated, however the system had failed. For a great remedial waterproofing outcome, seek assistance from an experienced waterproofing company to inspect your site and carry out the remedial work.The property when built had a Type C, cavity drain membrane systems incorporated (not a Delta System), however there was no basement drainage incorporated into the design to manage water ingress.In principle a Type C, drainage system is a water management system. The Type C system is used to control water ingress once it has penetrated the structure. Moisture or running water travel behind the Type C membrane within a controlled drainage system. A Type C System isn’t classified as a barrier but provides protection by means of water management. For a Type System to be successful a suitable drainage system is required to collect and discharge water ingress to a suitable and safe evacuation point (either by natural forces or a mechanical pump system).When correctly installed, groundwater drainage channels effectively relieve hydrostatic water pressure in the below ground structure. They are installed below flooring membranes at the floor/wall junction.
STOCKTON GLOBE - Sympathetic Waterproofing Solution
Delta Membrane Systems Ltd
Delta’s Technical Team along with Delta Registered Installers Marsden Damp Services were approached by the main contractor Wilmott Dixon to give assistance on designing a robust waterproofing solution. Working in collaboration with the architects and project team, this team of waterproofing experts were easily able to offer a simplistic and practical approach.The project was split into 2 phases with Phase 1 waterproofing the existing stage and orchestra pit and Phase 2, the seating and ancillary rooms which all required the installation of a Type C waterproofing system to ensure a Grade 3 habitable environment was created.
Waterproofing solution to Grade II Listed Commercial Structure
Delta Membrane Systems Ltd
The brief for this project was to design, supply and install a bespoke and sympathetic waterproofing solution to a Grade II listed, commercial structure with an impractical damp basement.Delta Registered Installers, MacLennan Waterproofing worked closely with the Principal Contractor, HB Projects to achieve a Grade 3 habitable space whilst preserving this historic structure.The Co-op shop in Petworth Village, provides the local community with everything they need, whether its household essentials or a place to meet friends.The site incorporates two Listed Buildings, including part of a Listed Church. The store applied for listed building consent to reconfigure its ground and basement floors, to increase the retail floor space and improve the functionality of the store.When designing a waterproofing/damp proofing solution in a historic building or a structure of architectural interest, additional design considerations should be employed during the design stage to maintain preserve aesthetic and structural integrity of the structure/building. The waterproofing design should be sympathetic in application whilst offering a robust solution.Care consideration should be applied when specifying products to ensure they are ideally suited for meeting the complexities of listed building requirements.
Structural Waterproofing - Private Residence
Delta Membrane Systems Ltd
The Scope of the project was to provide a structural waterproofing solution to a private dwelling with new build extension.The property, situated on a sloping site gave the opportunity for the waterproof design to utilise the properties environment to allow for natural discharge of any potential water ingress.The property was detached and retaining to the front and side elevations where the retaining ground slopes down and away from the property to a garden that continues to slope down to a small stream. The retaining walls on either elevation rise at their highest point to approximately 1500mm above the internal floor level.The internal walls of the property were original brick to the front and new cavity built concrete block. The floor to what was the original house is of solid concrete construction joining on to a newer block and beam floor construction.When designing the most appropriate waterproofing system to any given situation, various design factors require addressing such as (but not limited to), final use of the building, the grade of waterproofing requirement under the British Standard, structural considerations based on the form of construction and in some cases, satisfying the requirements of building warranty providers.
London Aquatics Centre made Watertight with GCP Preprufe® Waterproofing System
GCP Applied Technologies
The London Olympics Aquatics Centre has been given a watertight seal with the application of Preprufe® waterproofing membrane from GCP Applied Technologies.
GCP was able to meet the architects’ full requirements combining the Preprufe® comprehensive waterproofing and gas protection with a range of fully compatible pre-applied and post-applied membrane systems.
The specification of the Preprufe® waterproofing system has ensured that after the Olympic games, the facility will continue to benefit from long term waterproofing and gas protection performance befitting of the Olympics Legacy.
Find out more.
Type C, Cavity Drainage Waterproofing
Delta Membrane Systems Ltd
Delta Registered Installers, Bensleys provided a waterproofing solution on an iconic Brighton structure.Steeped in history and thought to be built on the original Brill Baths site, sits Clarendon Mansions. This large, detached structure is thought to have been built in 1870 by Charles Brill during the Brighton boom.The four-storey building facing Brighton’s famous sea front, was originally constructed as a hotel.Numerous refurbishments over subsequent periods of time, saw the structure move from a hotel to a public house, with the basement area being unoccupied for nearly a decade.The basement area boasts large, vaulted areas to the south and west elevation, with the south-side possibly being part of the original Bath structure.Bensleys were instructed by the main contractor, Pilbeam Construction on behalf of Evolution Architects, to help design, specify and install the waterproofing system.There’s no one-size-fits-all when it comes to waterproofing design. With the basement suffering from water penetration, Bensleys worked with the design team at an early stage of the project to ensure the right approach be taken, which included multiple factors such as: customer requirements, standards, robustness, cost, resources, time, skill required, safety and expectations of ground water which all translated into a design solution.
A Waterproof Mastic Asphalt Wearing Course for a Bridge Deck
IKO PLC
Along with re-surfacing, inspection, showed signs of wear and tear on the bridge surface areas too.
Consulting Engineers, Jacobs, approached IKO for the specification, and Galliford Try won the tender. BriggsAmasco were chosen as the installing contractor.
IKO’s Permatrack Bridge Surfacing system was chosen - a waterproof mastic asphalt wearing course for Bridge Decks containing both polymer and epure (Trinidad Lake Asphalt) modifications to the bitumen binder, which offers improved material flexibility and maintains good rut resistance.
Existing mastic asphalt surfacing and bridge deck waterproofing was stripped off and replaced with Stirling Lloyd’s eliminator waterproofing system and Permatrack.
Triton watertight concrete waterproofs lift shafts
Triton Systems
Triton Systems approved contractor, British Damp Proofing, installed products supplied by Triton Systems to waterproof two lift shafts in a development of 25 dwellings. Triton Bentonite Membrane was used to waterproof the lift slab base and kicker, which were poured using concrete made waterproof with Triton TT Admix. Triton's Adcor waterbar was then installed on to the kicker.
Liquid Waterproofing Solution Meets Refurbishment Needs of Coastal Residential Development
IKO PLC
A robust, trafficable waterproof finish was required to fulfil the brief and this had to be installed with minimal disruption to residents, allowing them access at all times. The waterproofing system needed to offer some slip resistance and be aesthetically pleasing whilst still being functional and robust. Furthermore, the waterproofing works were due to be undertaken during the winter months and so cooler conditions were to be expected and needed to be allowed for.
Corfe Hills School, 3 system waterproofing scheme
Garland UK
Established in 1976, Corfe Hills School in Dorset welcomes over 800 secondary and sixth form students through their gates each year. Since achieving Academy status in 2011, Corfe Hills have been looking ahead, keen to develop a schedule of works for building improvements that support the school’s growth and ultimately safeguard the building’s future.Over time, the existing roofs across the site had experienced continuous water ingress issues that needed to be addressed. Multiple roof penetrations from the roof lights were leaking water; the existing waterproofing system and the overlaid bituminous membrane were failing in places resulting in splits and blistering, and the metal roof had rusted beyond repair. With rain seeping directly into the classrooms below, action had to be taken to ensure the site was remedied to a safe and comfortable learning environment for students and staff.Garland Technical Manager, Paul Boole, was instructed by building surveying firm Kendall Kingscott to support Corfe Hills approaching CIF bid for the critical roof refurbishment works. An essential part of the brief was to ensure that the buildings were not only fully waterproofed but to upgrade the overall thermal efficiency, alongside securing a robust 20-year guarantee.In support of the CIF bid, Paul carried out a thorough investigation of the school’s roof assets for Kendall Kingscott, producing core sampling data, detailed condition surveys and U-Value calculations to outline a clear specification for the works required.
North London Synagogue - Structural Waterproofing Basement
Delta Membrane Systems Ltd
This project is unusual and offered an interesting scope.
Delta was approached to give assistance on designing a robust waterproofing solution to a new build basement within a Synagogue in North London. The main contractor having previously worked with Delta, knew Delta would be able to provide this project with a high calibre waterproofing design whilst offering respect for the community it serves.
West London – Combination Waterproofing (2 forms) to BS 8102:2009
Delta Membrane Systems Ltd
When specifying the most appropriate method of waterproofing for a new-build basement it is advisable to follow the recommendations within BS 8102:2009 ‘Code of Practice for Protection of Below Ground Structures Against Water from the Ground’. The standard advises on the types of waterproofing available and confirms the performance grade to be achieved. This project required Grade 3 protection – no dampness or water penetration acceptable.
Basement and External waterproofing
Delta Membrane Systems Ltd
The scope of this ambitious project was to restore and transform an abandoned Neo-Gothic Cemetery Keeper’s Lodge with adjoining public facility into a luxurious mansion in just 12 months. Works included demolishing the adjoining public facility to enable the construction of a new basement.The proposed new build construction would be a luxury ground floor extension which would run the footprint of the redundant public facility to offer a 4,000 square foot subterrain space with key features such as 13-meter swimming pool, 2 additional bedrooms, a tv games room and office space.Simon Gill Architect designed the ambitious project and was appointed as Project Manager.Delta Registered Installers 5 Star Basements were employed to undertake both dig out and installation of the structural waterproofing with Delta’s Technical Waterproofing Consultant, Paul Callaghan representing Delta. This approach at the design stage, allowed Paul to attend design team meetings and to ensure all criteria’s of BS8102:2009 were met.As aired on Grand Designs on 6th January 2021.
Waterproofing Solutions for Sporting Facility
Delta Membrane Systems Ltd
This large new-build structure required to be waterproofed to meet BS 8102:2009, the British Standard for the Protection of Structures against Water from the Ground requirements. As it is not possible to determine the amount of potential water pressure surrounding the structure, BS 8102:2009 states the waterproofing designer should expect a head of water against the structure at some stage during the structure’s service life.
Triton Supplies Type C Waterproofing For Landmark London Scheme
Triton Systems
The White Collar Factory will be a mixed-use are of workspace, residential and retail, designed by architects, AHMM. The development, sited on London's City Road, comprises a new 16-storey office tower, a new public square and refurbished existing buildings to the rear.
The new 2-storey basement has been waterproofed using a Type C system applied internally, to provide drained protection in accordance with BS 8102: 2009. The waterproofing was supplied by Triton Systems.
Waterproofing experts seal leaky basement
Triton Systems
Waterproofing and damp proofing specialists, Severn Damp & Timber Preservation, installed a range of Triton Systems’ waterproofing materials to deal with water ingress around two skylights, formed within the concrete roof deck over a basement that extended into the garden of a domestic property.
Combining a Range of IKO Roofing Waterproofing Systems to Refurbish a School Roof
IKO PLC
The existing waterproofing had failed due to a previous poor installation, the result of which saturated the insulation below the exterior roofing. New high performance solutions were specified that included a range of IKO roofing waterproofing systems to protect both the flat and pitched roofing areas of the building.
IKOslate, a robust and durable tile was specified for the pitched roof due to vandalism and the fragility of the current system, whereas a tapered scheme was required for the flat roofing - IKO Ultra Prevent alongside a cold applied liquid solution (IKO Polimar) for the more intricate details.
Waterproofing Crossrail Deep Underground with Preprufe®
GCP Applied Technologies
Reaching depths of more than 30 metres beneath the streets of London, Crossrail Stations required unique solutions to ensure water tightness. GCP Applied Technologies, a leading supplier on some of the major stations including Canary Wharf, Whitechapel, Liverpool Street, Moorgate, Farringdon, Tottenham Court Road and Bond Street, reached into an extensive portfolio of high performing and easy to install Preprufe® waterproofing products to solve challenges presented by each station. Composed of durable HDPE, the Preprufe® waterproofing membrane adheres directly to concrete with Advanced Bond Technology™ to form an impermeable seal.
Find out more from gcpat.com.
Hampstead Residential Property, London - Waterproofing Render
Sika Limited
A previous client of Renderseal Ltd – who had works undertaken on his home in Hampstead in 2013 – requested help recently with further works at the same property.Due to a defective external drain problem, water ingress had occurred in the client’s rear bedroom in addition to damp staining and paint blistering in the side entrance hall.Familiar with Renderseal Ltd’s expertise, the homeowner returned to the waterproofing specialist for help. Providing its services throughout London and the Home Counties, Renderseal Ltd’s plan was to install a Sika waterproofing system that would combat the issues created by the home’s defective drain.
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