WestWood Liquid Technologies Limited

Balcony Refurbishment, East Sussex. Wecryl Waterproofing System WestWood Liquid Technologies Wecryl Waterproofing was successfully used on a balcony in East Sussex. WestWood approved installers, Michael Johnson Roofing, cleaned and prepared the existing substrate. Firstly, Wecryl 276 Primer Layer was applied following the Waterproofing Layer Wecryl 230. After the Waterproof Layer cured, a two component Protective Layer using Wecryl 233 was installed. The system was completed by using a tile effect Finish with our Wecryl 288 Sealer Coat in RAL7043 including black/white deco chips that also provide some slip resistance.

Balcony Refurbishment, Eindlyk, Hythe, Hants. Wecryl Waterproofing System WestWood Liquid Technologies Wecryl Waterproofing & Balustrade System was successfully used on a balcony in Hythe, Hants. WestWood Approved Installers, Protec Roofing Ltd, cleaned and prepped the existing substrate. Firstly, Wecryl 276 Primer Layer was applied following the Waterproofing Layer Wecryl 230. After the Waterproof Layer cured a two component Protective Layer known as Wecryl 233 was installed. The system was completed by using a Tile Effect Finish with our Wecryl 288 Sealer Coat in RAL7035 including black/white Deco Chips to provide some slip resistance.

Lawrence Hall is a Grade II listed property. A brown and brick stone building sits in front of a concrete framed hall featuring high vaulted ceilings with circular skylights made from Georgian wired glass.The existing warm roof construction had reached the end of its serviceable life causing water ingress throughout the building.A new warm roof system was installed featuring Wecryl 230 for the waterproofing layer. This high-grade PMMA-based resin is cold applied with a Weplus fleece reinforcement resulting in a durable waterproofing membrane that is highly flexible and permanently weather resistant.The thixotropic version of Wecryl 230 was used to waterproof around the large circular rooflights situated on three levels of the building. With a thicker consistency and rapid curing time, this PMMA resin was ideal for the vertical upstands. Wecryl 230 was also applied around the windows at all roof levels combined with Weseal 815, a highly flexible, fibre-filled waterproofing product for sealing minor penetrations.Running the length of the main hall is a considerable amount of glazing with small upstands. After removing the existing asphalt from below the windowsills, the substrate was repaired before applying Wecryl 810, a rapid curing putty, which can be used to quickly fill small cracks and joints, and to smooth out uneven areas.A small high-level terrace area was also stripped and replaced with a new warm roof and protective cement board. The waterproofing membrane was installed with a trowel on wearing layer and topped with quartz sand to increase slip resistance. 

Size: 350 sq. mSubstrate: ConcreteWestWood products: Wecryl 276, Wecryl 298, Wmp 713, Wecryl 230, Wecryl 230thix, Wecryl 233, Wecryl 810, Wecryl 815, Wecryl 288The ChallengeOwned by the London School of Economics (LSE), 32 Lincoln’s Inn Fields is a Grade-II listed building. Persistent leaks across a terraced area at the front of the property had caused considerable damage to the basement area below, which was home to computer rooms and teaching space.The SolutionThe existing paving slabs and asphalt covering were removed down to the concrete deck, which was assessed for a new waterproofing system. WestWood’s Wecryl waterproofing products were then selected to rectify the water ingress issues.The structural concrete was primed with Wecryl 176 followed by the installation of Wecryl 230, a fleece-reinforced PMMA-based waterproofing resin. This created a fully bonded monolithic membrane, eliminating the risk of water tracking underneath the concrete structure.The waterproofing was also applied around extensive detailing, including new gulley drains and numerous metal stanchion posts.An additional layer of Wecryl 230 and quartz sand were added to provide extra protection across the trafficable surface. New Yorkstone paving slabs and planters completed the upgrade, enhancing the aesthetics.The OutcomeThe project was completed successfully while adhering to strict timeframes over the summer break, minimising disruption for students and staff.Accredited for zero falls application, the Wecryl 230 waterproofing prevents standing water from affecting the system’s performance, ensuring the terrace will remain watertight for many years to come.

A complete refurbishment of the Millstream West roof was needed as it had suffered significant failures over the years resulting in saturated insulation. The roof comprised two distinct sections; one housing extensive plant equipment, such as air handling units (AHUs), and the other accommodating M&E elements and numerous PV panels. The complexity of the plant area, filled with pipework, cabling, and ductwork, made access and waterproofing difficult. Furthermore, the office space below had to remain fully occupied throughout the project, demanding minimal disruption and careful logistical planning.The failed single-ply and warm roof system was replaced with WestWood’s Weproof 264 system. This low-odour waterproofing membrane ensured the work could be completed without affecting the office environment below.In the heavily encumbered plant area, coordination with M&E contractors was critical, especially when installing around inaccessible sections. Reduced-thickness insulation and a waterproofed cement board were used to repair crushed insulation in these areas, while additional protection was provided with Wecryl 420 Textured Coating.The southern half of the roof, which had fewer M&E elements, allowed for quicker progress. Mechanical airflow systems were introduced in enclosed areas to combat airflow limitations, ensuring the highest health and safety standards were maintained.

Situated above Rochdale Exchange Shopping Centre, this busy car park was suffering from damaged asphalt. Car tyres had caused numerous dips on the surface and the curbs were also in need of repair.These failings demanded a high-performance waterproofing and surfacing system, which could be installed while the car park remained open to the public.To rectify issues with the asphalt deck, Wecryl 842, a fast-curing repair mortar was used to fill and level the defects.As large humps of asphalt had been used to encapsulate the street lighting cables, these areas were cut out and new cabling installed. The surface was then reformed also using Wecryl 842. This solution removed the humps, preventing the risk of ponding water and achieving a more aesthetic finish.New pedestrian walkways were coated with WestWood’s Wecryl 420. This resin was manufactured in a vibrant green colour to match the shopping centre’s branding and create a visual connection between the car park and retail space.

The terrace had issues with standing water and, being in a coastal location, was exposed to harsh marine conditions and weathering. The challenge was to create a solution that not only provided robust waterproofing but also offered an aesthetically pleasing finish to suit the unique style of the development. The intricate design needed to maintain precision, particularly with the tile effect application across raised deck areas, which required exceptional attention to detail.WestWood’s PMMA liquid waterproofing solution was specified for its durability and UV stability, ideal for the marine environment of San Remo Towers. The tile effect finish was created using 6mm tape, applied by hand, to form precise grout lines over the terrace, including the challenging raised areas. This process was managed by a skilled operative, ensuring the diagonal design remained straight even as it continued over the 180-meter perimeter.The WestWood system not only resolved the standing water issues but also enhanced the thermal performance of the building, providing a robust, trafficable surface for residents. Weekly site visits by WestWood’s regional field technicians offered continuous support and ensured the project maintained the highest quality standards throughout.

The Tesco Chester car park was in urgent need of repair. Failing asphalt was causing water to leak into the store below. A new waterproofing system was required to enhance the car park’s structural integrity and increase drainage capacity.The refurbishment also demanded repairs to the concrete deck, which was cracked along the joints and had a soft surface filled with voids. If left untreated, these voids would have resulted in pinholes throughout the finished waterproofing system.Following removal of the failing asphalt, Wecryl 821, a low-viscosity concrete stabiliser, was applied to the concrete deck, preventing pin holes forming throughout the system.Larger cracks in the deck were filled with Wecryl 810 Flexible Putty prior to applying more than 5,000 linear metres of banding. Expansion joints were also installed throughout the structure, enhancing durability.Following the preparation of the concrete deck, WestWood’s Wecryl 279 waterproofing was applied, providing flexibility and exceptional crack-bridging properties.Tested according to Class OS 10-20 of the DAfStb guidelines, Wecryl 279 is resistant to mechanical stress, acids and alkali. Additionally, the system allows for customised surface designs, including a wide range of colours, patterns, and markings – ideal for the car park application.Large areas of ponding water, caused by inadequate drainage, posed a potential health and safety risk during the winter. To tackle this challenge, WestWood helped to design a customised drainage system. New symphonic outlets were installed together with WestWood’s extensive range of rapid-curing levelling screeds and mortars to eliminate the risk of any future ponding.

WestWood’s innovative and durable solution offered outdoor communal space for a high-end, thriving office building in the centre of London. WestWood Liquid Technologies designed a new terrace provision to replace original materials that were not performing effectively. Water ingress was therefore impacting the occupiers and tenants in the floors below.

The Old Pump Works is a new-build residential scheme. Forming part of the development are two-storey apartment blocks each designed with curved green roofs to complement the rural landscape. To ensure a robust, homogenous waterproofing solution for the green roofs, WestWood’s Wecryl 230 PMMA-based resin was specified by Emperor Roofing Ltd.

The Plaza shopping centre in Wokingham required a comprehensive refurbishment of its multi-functional car park, which also serves a local gym and provides permit parking for residents. The roof deck, inter-decks, and the main entrance and exit ramp had all suffered from failed waterproofing, leading to concrete substrate issues that required immediate attention. The refurbishment had to take place while keeping the car park operational, creating complexities around noise, dust suppression, and maintaining a safe environment for patrons during the works.To begin the refurbishment, the existing waterproofing system was removed using specialised 'ride on' plaining plant designed for multi-storey car parks, which ensured the concrete roof slab remained intact. To manage dust and noise, water drums and bowsers were used to dampen the deck. More than 200 sq. m of defective concrete was removed and responsibly disposed of through concrete recycling. Before applying WestWood’s PMMA system, the damaged concrete areas were repaired with specialised mortars and sacrificial anodes to address corrosion. Surface preparation included the use of captive blasting and Westwood's 821 ultra-low viscosity stabiliser to eliminate outgassing. The fully crack-bridging WeCryl OS 10 279 system was then applied with a wearing layer of quartz sand and final coloured sealer coats to ensure durability.The main entrance and exit ramp were waterproofed using a buried Westwood system, finished with tarmac. Contractors, Cemplas, completed this part of the project within the two-week window granted by Highways.

Specialist contractors, Cure Roofing Ltd. from Sheffield, installed a race track design using WestWood products inside his 1,000 sq. m car garage. The building, which was a former milking parlour on a farm outside of London, has undergone refurbishment to house Shmee’s ‘Shmeemobiles’

WestWood Liquid Technologies was tasked with providing a waterproofing membrane for The Wedding Cake, a 12-meter-tall sculptural pavilion designed by Portuguese artist Joana Vasconcelos. Located within the Rothchild Foundation’s Waddesdon Estate near Oxford, the pavilion, inspired by Baroque architecture and Lisbon’s ceramic traditions, required a waterproofing solution that balanced durability with aesthetic appeal.Constructed as a steel modular structure by Westgreen Construction and featuring thousands of ceramic tiles in delicate shades of pink, green, and blue, the art piece needed to be both functional and visually aligned with the artist's vision. The project presented technical challenges, including ensuring the structure’s watertight integrity and achieving a precise colour match for the waterproofing materials.WestWood delivered a robust waterproofing system using its PMMA-based Wecryl technology, known for its flexibility, crack-bridging properties, and rapid cure times. The Wecryl 230 waterproofing layer was applied across the pavilion’s three levels, including the stairways, walkways, and terrace areas. This cold-applied liquid membrane ensured a durable, fully-cured bond, preventing water from seeping into the structure. In addition, a customised, colour-matched Wecryl 420 non-slip wearing course was used to ensure safe access to the structure without compromising its aesthetic integrity. The colour matching was critical, as the waterproofing solution needed to seamlessly blend with the pastel ceramic tiles, maintaining the artistic design. Despite cold weather conditions during installation and the complexities of cross-border collaboration, the project team successfully overcame these challenges.

Size: 1,000 sq.mSubstrate: Asphalt, Wecryl 122, Wecryl 230/ 230 thixWestWood products: Wecryl 122, Wecryl 230/230 Thix and high performance 700kPa extruded polystyrene and filter membrane.The ChallengeFacing the river Thames, Vintners Place is a striking neo-classical office building that needed upgrading to attract and retain occupiers. As part of the Category A office fit out on levels five and six, a large roof terrace needed refurbishment. As the original asphalt was nearing the end of its design life, a new inverted roof system was required.The SolutionPrior to waterproofing, the inverted roof build-up was stripped back to expose the asphalt. As extensive dirt and grime had accumulated over the years, the surface had to be scabbled and cleaned to create a suitable substrate.WestWood supplied a new inverted roof system, including its Wecryl waterproofing products. The existing asphalt was primed followed by the installation of Wecryl 230, a fleece-reinforced PMMA-based waterproofing resin. To accommodate new planters and a filtration layer, extruded polystyrene insulation with a high compression strength was incorporated into the build-up.Around the roof terrace’s perimeter were several raised plinths that had been used to secure the window cleaning cradle track and were retained as features. The track and lead saddles were removed, allowing the plinths to be encapsulated with the thixotropic version of Wecryl 230 before decorative cappings and planters were installed.All paint was abraded and metallic surfaces were primed. A new waterproof collar was installed to circa 100 balustrades, with the covers lifted and repaired using WestWood’s rapid curing PMMA putty.The terrace was completed with new paving installed on top of adjustable pedestals allowing for levelling and suitable drainage.The OutcomeThe project transformed the roof terrace, providing an impressive communal space that can be enjoyed by occupiers and directly accessed from level six.The Wecryl 230 waterproofing ensured a flexible, robust membrane that integrated seamlessly with the inverted warm roof design providing long-term protection beneath the insulation layer.

The Duke of York Restaurant is an award-winning restaurant which is located in the largely Grade II-listed Duke of York Square. The project champions the best of modern design in harmony with it’s heritage and surroundings. The restaurant includes a circular roof terrace, which is open to the public and the UK’s first innovative glass façade which will lower into a single storey basement during fine weather to allow for al fresco dining. Background: Wecryl PMMA rapid curing products were chosen by the architect to waterproof the steps leading up to the public terrace, the public terrace, a small roof area containing M&E and the lift core roof. The Solution: Wecryl 230 liquid applied waterproofing was applied to the entrance steps, the public terrace and the different roof areas. For added protection to the waterproofing membrane, the stair treads and the section of M&E roof, was overcoated Wecryl 233 wearing layers. A quartz sand broadcast and Wecryl 288 sealer coat provided a skid inhibiting and robust finish. For an aesthetically pleasing look, the lift core roof had Wecryl 288 sealer coat applied in white RAL 9003 with a Deco Chip broadcast finish. Where threaded bar pentrated the membrane to the risers on the entrance steps, Weseal 815 Fibre Putty was utilised to waterproof this detail.The Benefits: A key decision behind Wecryl waterproofing being used was it’s self-terminating properties and the variety of purposes and finishes that could be achieved to satisfy the building’s and client’s requirements. Wecryl 230 provideda a fully-bonded seamless waterproofing membrane. The additional protective wearing layer will homogenise to provide one seamless elastomeric hard-wearing membrane.

Located in the borough of Kensington and Chelsea, 44-54 Onslow Square is a Grade II listed Georgian property comprising several apartments. As part of a wider renovation project, repairs were required for one roof above a dwelling, portico roofs and a balcony that extends the length of the entire building featuring more than 100 ornate railings. The existing asphalt on the roofing areas and balcony had started to deteriorate and leak. This not only had to be replaced with a more robust waterproofing system, but a unique tile effect created to complement the historic architecture. All work had to be carried out during the most severe winter conditions in many years.

The new roof was installed in conjunction with the local joiner and builder. Starting in the summer months some of the existing stonework was removed to allow the extension to be built. Once in place, stage one of the waterproofing was installed. The cavity was blocked off before the Wecryl waterproofing was installed over the cavity and onto the inner skin of the building and 100mm down the face of the blockwork. This then allowed the Lakeland stonework to be reinstated. The new timber joists were then installed with timber firings creating the fall of the roof and a new plywood structural deck. Once set up a new foil faced vapour control layer was applied prior to the fitting of the 120mm foil faced PIR insulation which was fixed into place using 18mm T&G OSB board, this allowed the roof to be formed perfectly flat. The Wecryl waterproofing was then installed. Due to the seamless nature of Wecryl PMMA the new waterproofing was connected to the existing waterproofing through the cavity and left the client with a system free from any joints or weak points.Once complete the project was left while the joiners installed the cedar cladding and powder coated drip trims. Once complete the Wecryl PMMA was then installed and encapsulated the parapet, joining the trim to the main roof. Due to the Wecryl PMMA’s self-terminating properties the waterproofing could be terminated on the leading edge of the trim to give the client a clean finish he required.

Complete roof terrace refurbishment with tile-effect finishProgressive Coatings Ltd., in partnership with WestWood, installed a durable waterproofing system on two roof terraces totalling 460m². The solution included a tapered PIR insulation scheme for effective drainage, covered by impact-protective cement board. WestWood’s warm roof system with a tile effect finish provided the aesthetic enhancement required. To ensure minimal weather-related disruptions, Progressive adjusted work practices, sealing partially completed layers daily to protect the terraces from rain and adjusting schedules to avoid extreme temperatures. Despite access limitations, about 40 tonnes of material were removed by hand to prepare for the new installation.