"separating membranes geotextiles"

Liquasil Ultra PU is a BBA approved flat roof waterproofing membrane. Cold-applied, the system comprises an embedment coat, into which a chopped strand reinforcement mat is laid to provide exceptional strength. The mat dissolves and allows for hand-moulding around difficult details. Once cured, the Liquasil PU UV coat is applied to provide additional strength, durability & protection. The completed system comes with the unique Latent Defects Insurance Guarantee, which provides cover for Professional Design. Specify with 100% confidence. Made in the UK.

Furnitubes designed and manufactured a number of AKRI retaining steel wall planters with ped and tray system for rooftop scheme in in Bexleyheath, south London. AKRI’s unique ped and tray system allows the planters to be left freestanding, sitting on a layer of waterproof membrane. Decking and pergolas were installed and benches were later retro-fitted to the planters to seamlessly integrate seating, manufactured in all steel to accommodate the required A fire rating, creating stunning landscaped roof tops across both buildings in the heart of a bustling city.

The Joseph Black Building, found in the King’s Buildings Campus at the University of Edinburgh, houses the School of Chemistry and is one of the oldest buildings on the campus. But its existing copper roof covering had come to the end of its natural life. Sika Sarnafil’s flagship Sarnafil Plus refurbishment offer was the perfect solution for this project. Sika Sarnafil Membrane S327-15EL in Patina Green was chosen to replace the old roof covering, as the local authority planning department advised that this product was an acceptable replacement for the original copper roofs on the listed building.

Financed by county council capital funds, Northamptonshire County Council undertook a multi-million pound remedial works programme on a number of schools originally built in the 1960’s and 1970’s. All of the buildings were suffering from some degree of water ingress, and the roofs needed to be brought in line with current building regulations for improved thermal performance. Sika Sarnafil’s specialist roofing contractors installed over 50,000m2 in light and lead grey of G410-18EL single ply membrane to the school roofs.

Overcoming the challenges facing the Council was key to the success of the project. These were health and safety, time, cost, and aesthetics. A cold applied system was used to secure the membrane, eliminating the need for naked flames on the roof. Norwich City Council commented, “The Castle Museum houses collections of national importance, not only did we have to consider the safety of staff and the public, but also the historic collections whose home is beneath the rotunda roof. The need to elimate hot works on this project was a huge issue in specifiying the products to be used.”

The new Costco warehouse in Farnborough is just one of 45 being built across the country by the leading wholesale giant as part of its UK expansion plans. A Sika Sarnafil waterproofing system has proved to be the perfect fit for the new 12,000sq m Costco warehouse. The size of the project and the quick installation time required resulted in the specification of the Sika Sarnafil S327-18EL membrane in Light Grey. Ideal for the job, the system is formulated for direct exposure to weather and is produced with integral polyester scrim reinforcement for high strength.

The £230m Princesshay Shopping Centre, in Exeter, officially opened to the public in September 2007, as part of the city’s biggest ever regeneration project, with over 70 shops, cafés and restaurants. The roof of the centre, installed when the building was constructed, had caused various problems throughout its life. A Sarnabar system in Lead Grey was chosen, with a T fleece between the composite deck and the mechanically fastened Sarnafil S327-18EL membrane. On a smaller roof with a plywood deck, Sarnafil G410-ELF, an adhered system with a fleece backing, was specified.

The O2 arena's roof needed state-of-the-art acoustic engineering to eliminate virtually all nuisance ambient noise (bass thumping) outside the arena contributing to fantastic acoustics inside the structure.The complex roof design featured several layers of different density barrier materials to deaden even the lowest bass frequencies, all carried on special acoustic deck structures. The structural deck troughs were filled with ROCKWOOL RW4 insulation, with ROCKWOOL Acoustic membrane over and a 50mm Rigidal intermediate deck.

Projects of complexity that demand innovative solutions to technically challenging interface design often deliver exceptional buildings. As a shining example, Axter recently completed the roofing systems for The Cheng Yu Tung Building, a landmark project for Jesus College in the heart of Oxford City.Systems in useStarcoat® PMMAForce Dalle®Excel®Cityflor®OverviewThis project required Axter’s extensive range of materials and methods combined to complete the multifaceted interfaces and deliver the demanding architectural design, whilst achieving the project’s ambitious goals.Founded in 1571, and with original buildings from this date, Jesus College is based in the centre of this diverse and historic city. With the development of the Cheng Yu Tung Building the college has undertaken its most significant transformation since the early 18th century.Combining new graduate accommodation, indoor and outdoor communal spaces, state-of-the-art teaching and meeting facilities with the latest digital technologies, this £36m innovative development is intended to have significant impact on the college faculty and students’ learning experience.Axter worked with architects MICA from early in the process, helping to specify solutions that would realise the design vision of lead architect Mandy Franz.“We’d worked with MICA before on a number of projects - including Keble College, University of Oxford - so they knew us and trusted us to add value through being involved with the design,“ comments Axter's Regional Sales Director, Matthew Saunders. “However, this project was a significant step up in complexity, with approximately 18 separate roof areas in total to complete. Looking at the main quad alone there is a raised area, numerous external stairways and walkways to waterproof as well as further raised terraces and inaccessible roof sections. Fortunately, we had significant experience to bring to this challenge.”Sustainability was the client’s major focus from the start, with the college already utilising ground source heat pumps, photovoltaic panels, and a heat recovery and cooling system to ensure zero carbon building operations, as well as reviewing all construction waste to ensure minimum diversion to landfill. We supported this aim working with main contractor BAM Construct UK to carefully plan and schedule the waterproofing systems to be installed, identifying the material composite of each roof to maximise efficacies in installation and logistics.The College’s key priority was to achieve a sustainability-focused design to reduce their carbon footprint. Naturally, this contributed to the challenges of the scheme, such as the additional fire safety requirements in response to the timber-framed construction. To help deliver the College’s ambitions, Axter supported the client’s design team by providing expert knowledge, understanding and application of the current regulations.Tapered roof insulation was used to support energy efficiency and drainage requirements, with bituminous waterproofing throughout. In keeping with the college’s sustainability mission, the main quad features a blue roof system to attenuate rainwater drainage. Other roof areas are finished with wildflower meadows. A combination of exposed and buried waterproofing membranes were consequently required, with additional complexity created by the range of different materials and surfaces involved.“Normally, if our membrane is marrying up to a vertical wall, we would see it come up as a visible detail,” continues Matthew, “but the beautiful Clipsham stonework used for the building façade wasn’t compatible with the typical detailing. We were also challenged by the desired architectural intent to defend the historic aesthetic of the stone, so we created a bespoke solution that has the required guaranteed watertightness whilst also delivering the architectural vision.”Additional challengesThe project started in 2020, just as the UK was trying to navigate the guidelines for operating during the COVID-19 pandemic. Matthew explains: “there were still restrictions in place, such as a general 2-metre distancing requirement, which was challenging in the tighter spaces, for example corridors where you literally couldn’t pass another person. We had an unusually hot summer also, which wasn’t helpful when you have workers in full PPE using 1,400-degree butane torches where use of naked flame was permitted in accordance with NFRC Safe2Torch guidance.”The overall scope of the project, which encompassed multiple terraces at different levels and a mixture of concrete, CLT and steel frame structural composites, was a defining characteristic. “This was a large-scale development to begin with,” adds Matthew. “Furthermore, the university emphasised from the start the centrality of the significant sustainability objectives, and MICA had ambitious solutions in mind in terms of the materials used. Our job was to accommodate these various requests while keeping in mind all of the regulatory and compliance requirements. Achieving those without exception, for a large number of surfaces, does become more challenging where each part of the project has several ambitious aspirations intersecting with one another. Fortunately, we are known for always rising to a challenge.”SolutionsThe pandemic accelerated the shift to a range of technological solutions replacing traditional or face-to-face approaches. Systems were evolved for everything from distancing to digital rather than traditionally signed delivery acceptance.“As a manufacturer, we don’t have to be on site every day,” notes Matthew, “but traditionally we would attend fairly frequently, as well as meeting regularly with partners to agree and then oversee various aspects of the project plan. Fortunately, Axter was already moving towards solutions such as virtual meetings, so we simply shifted much more quickly to those approaches, using them wherever possible.“I think one advantage we have is the breadth of the product range we design. We can offer clients such as Jesus College a full system approach involving multiple solutions, to ensure we use the right system for the right application on each occasion. Our accredited installers are carefully vetted and trained by us, and have worked with us for long enough to know our products inside out.”The range of products we are able to offer, all developed in-house, does testify to the culture of Axter. Comments Matthew: “We are very much a technically-oriented company and that runs through every aspect of our work and our staff. Our sales team are all very aware of the products on that level, they aren’t selling products they don’t fully understand the technical details of. Our long-term partners know that what we offer them is reassurance that, from early-stage design meetings through to completion, whatever challenges they put to us, our response will be considered and robust in terms of quality and compliance.”Systems and products usedExternal stair cores used Axter Starcoat PMMA liquid waterproofing membranes.For the main quad and some lower areas, our innovative Force Dalle warm roof solution was used.Our Excel reinforced waterproofing membranes were used as an exposed membrane finish, with a tapered insulation to ensure the falls and consequent drainage characteristics required by BS 6229.Axter’s Cityflor warm living roof membranes were used as buried applications in several roof terraces, again with tapered insulation.Self-adhesive membranes were used where necessary to ensure compliance with NFRC Safe2Torch Guidelines, especially required due to the timber elements.Acknowledgments"To deliver the increasing demand on a building’s performance specification, combined with the seamless aesthetics of contemporary architectural design, an advanced understanding of technical detailing is required in the design and construction process. The design criteria have also resulted in an extensive range of engineered systems on the market to provide certified, technical solutions for multifaceted interfaces.Working directly with the designers and product manufacturers, we prioritise a full system approach to the weather-tightness of the building, focusing on durability, termination and compliance with current regulations. I have worked with the team at MICA Architects and Axter’s Matthew Saunders on a number of challenging projects, including The Cheng Yu Tung Building, Jesus College, and the HB Allen Centre, Keble College. Matthew Saunders has always been a key consultant for the technical specification of above ground waterproofing systems and the buildings’ thermal performance. He’s an expert in technical detailing and advisor on the materials required to deliver the optimum waterproofing system for the building."Eric O’Hare, Design Manager, BAM Construction www.bam.co.ukWith special thanks to: Tomasz Zozak, who provided the photographs, and BAM Construction Ltd.

Some of our most important public sector assets are held within the healthcare system so choosing the correct specification is critical. Often these buildings host patients or the latest medical equipment, and this centrally funded NHS project at Chase Farm Hospital was no different. This particular project hosted an array of plant and equipment for the NHS and our lightweight DANOPOL HS 1.5mm mechanically fastened membrane was chosen as the waterproofing system to be installed onto the structural metal deck. The scheme also featured a tapered insulation scheme in partnership with Kingspan Insulation designed to 1:60 falls and 0.30 w/m2 K u-value. When installed to structural metal decks, all the mechanically fastened components are mechanically fastened to the crowns only, so careful consideration must be made to ensure that any mechanical fasteners coincide appropriately. A project-specific wind uplift calculation was completed by our technical team which provided detailed instructions and fastening patterns for the mechanical attachment of both the waterproofing membrane and tapered insulation scheme. In addition to ensuring that the system will resist any applicable windload, our calculations can reduce overall frequency of fasteners, ensuring that the project is not over-engineered and ensure that the installation progresses as quickly as possible.Waterproofing Systems:DANOPOL HS 1.5mm - Light GreyConstruction Type:New BuildWarm RoofSector: Public Sector Approx. Size:2,200m2 Warranty Period: 20 Years

When developing new buildings, it is always important to consider the environmental impact. Responsible sourcing of materials is high on every priority list, along with reducing waste to landfill. But what about the local impact, such as the effects on local wildlife? A living roof/green roof system, such as the one installed by the Premier Contractor at Seaford Head Golf Club, is a very clear example of the steps that can be taken towards reducing this impact and providing an alternative space for wildlife to inhabit. A warm roof system was installed onto a structural plywood deck, after which a vapour barrier and insulation boards were mechanically fastened to provide both thermal efficiency and air leakage control. After the underlying installation had been suitably restrained in accordance with a site-specific wind uplift calculation, the roof membrane was mechanically fastened to complete the waterproofing system. Our PVC roof membranes have been tested and can be utilised without the need for additional root prevention barriers (test standard EN 13948), and because PVC is extremely lightweight, they are the perfect choice for these applications, reducing pressure on the underlying structure. In conjunction with our Living Roof/Green Roof specialists, a site-specific living roof system was supplied and installed over the completed waterproofing.Waterproofing System:DANOSA Single Ply 1.5mm - AnthraciteConstruction Type:New BuildWarm RoofSector:LeisureApprox. Size:900m2Warranty Period:20 Years

The flat roof area at above the vast Guernsey Power Station had been suffering from water ingress as a result of failings in the existing EPDM membrane. Due to the expensive machinery housed within and the potential for widespread and costly disruption should the leaking continue.Guernsey Electricity turned to Sarnian Roofing Limited, a Polyroof approved contractor, to provide a rapid and effective waterproofing solution. The Protec System was specified, and work began quickly.The SolutionRemoval of the failed roof coverings to expose the concrete deck below began, and the BBA-approved Protec 20-year system was installed directly to the concrete. Due to its RapidCure technology, the system cures within 30-60 minutes, meaning less disruption for the client.The Protec System provides an flexible and seamless membrane that eliminates the risk of water ingress around penetration points common in industrial unit roofs. As the system is cold applied, there are none of the safety risks associated with the open flames and hot torches used with traditional roll-applied systems.Polyroof’s reputation has been built on the high level of technical support provided to clients before, during and after every contract.We like to work closely with our clients from the very beginning of a flat roofing project right through to completion and throughout the lifespan of the roof. From our experience, this is the best way to guarantee that all aspects of the roof are finished to the superior standards that our clients expect.

Private house, Jersey CHALLENGE Glulam beams – or glued laminated timber – are an ideal light weight alternative for steel or reinforced concrete that allow for much longer spans, heavier loads and complex shapes. Over the years timber rot may occur to such a degree that renovation becomes imminent and irreversible. That’s exactly what has happened to the property of a Jersey customer of RENOLIT’s approved contractor Advanced Roofing. A solution was sought to “save” the existing Glulam beam structure without too many structural changes. SOLUTION The RENOLIT ALKORPLAN roofing contractor solved the problem as follows: For the first stage they removed the failed, rotten areas and treated the remaining areas for insect infestation. Then they covered the glulam beams at each change of direction with RENOLIT ALKORPLAN metal sheet. Over the metal the beams were completely wrapped in reinforced RENOLIT ALKORPLAN membrane. Nicely packed… and completely waterproof. It worked really well and actually quite an ingenious idea! The glulam beams can start a second life resistant to all weather conditions. Once the glulam beams were encased there was still the issue of the solar shading to be re-fitted. Preferably without having to penetrate the newly applied membrane! The brilliant idea of using RENOLIT ALKORSOLAR profiles welded to the top edges of the glulam beams as a safe and solid support for the solar shading evolved. This project is again an excellent proof of the versatility of our RENOLIT ALKORSOLAR mounting system.

Two five-panel BSF70 bi-folds installed on the front of the garden room open out from the centre, while the pool area features a single, nine-panel bi-fold which opens up one way from right to left to create a seamless link between inside and out. There are also two further five-panel BSF70 bi-folds installed at the end of the building and working as a divider between the two separate zones. All the doors are in Anthracite Grey throughout, double glazed with black, warm edge spacer bars.

Established in 1963, the University of East Anglia (UEA) is one of England’s leading public research and teaching universities. The university occupies a large campus and sought a locking system for its newest on-site residence, Crome Court. The accommodation has 231 en suite rooms rented to university postgraduates, separated into flats for between 8 and 13 people. Crome Court has been specifically designed to minimise environmental impact, including CO² emissions. Any access control system is expected to contribute to that goal... Click on the link below to read more.

The conversion of a centuries-old house in Soglio presented an interesting challenge to the interior designer and the joiner. The end result is a residential house where the old building fabric and modern comforts complement one another perfectly. The interior designer and the joiner worked closely together to develop the interior. A sliding partition wall separates the bathroom from the bedroom. HAWA Junior 80 Z hardware makes sure it slides smoothly and quietly. Although sliding partition walls are rather atypical for the building type and its era, they are perfect for a house with confined spaces and slanting walls.

The final phase of the £500m redevelopment of Kings Cross has been completed with the creation of a 75,000 sq ft square in front of the station.The square has granite benches with inset panels of high quality stainless steel grating supplied by Lang+Fulton, stunning lighting, trees and an area dedicated to art.The 11×66/25×2 heel-proof grating panels for the six separate seating areas were shaped to accommodate the up-lighters, the planting and adjacent watering points and were supplied in stainless steel grade AISI-316L with a satin finish.

Brookfield is a recent acquisition that the University of Leicester is developing to offer supplementary and upgraded teaching facilities and office accommodation for support staff. When selecting seating for the scheme, landscape architects Barry Chinn Associates truly embraced the modular concept of RailRoad, so much so that the setting out of the perimeter planting beds was dictated by the seating sizes. Three separate seats were supplied, each comprising different radii modules that introduce a refreshing informality to the courtyard. The seating is further enhanced by the addition and informal placement of backrests, armrests and tablet surfaces.

Over 266m2 of framed panels of Terra-34, which is a grating which conforms to anti-climb guidelines, were made to cover the south, east and west elevations. These were fabricated in 16 different sizes up to 2.5m high and 1m wide and fixed to the structural framework with custom welded plates. Access through the east elevation was provided by a very large double-leaf gate to allow for the removal of large sculptures and installations. The gate was made out of six separate panels within each leaf for an overall size of 4.6x5.3m (hxw).

The Enterprise Lab at Imperial College, London, benefits from the installation of a DORMA Variflex moveable wall system, allowing the room to be divided into a breakout area and workspace. Partitioning experts, Style was closely involved during the design stage of this project as the basement room is located at the bottom of a tight staircase, causing access issues. “We recommended Variflex as it is such a flexible and adaptable system,” said Julian Sargent, Style’s group managing director. “Most importantly, the panel faces are manufactured separately from the frames, allowing each element to be manually manoeuvred down the stairs”.

Few people realise that it is possible to clad old stairs with our engineered herringbone parquet floors. It is a specialist skill and you should only employ trusted professionals who have the specialist equipment. The parquet blocks used here are unfinished so that you get perfect square edges. They are then oiled after all other works are completed so that you get your perfect floor. There is no separate stair nose piece as the top layer of solid Oak is a good 4mm thick and this allows the fitters to create an accurate mitre join.

A series of 10 newly built affordable Council houses in Montrose, Scotland has been fitted with a high-performing variable-permeability vapour control layer from the A. Proctor Group. Procheck® Adapt is designed to protect the building fabric from the potential risks of condensation and act as an effective airtight barrier.The project, led by Angus Council comprises of a mix of one, two and threebedroom properties which will be built with energy efficiency in mind, providing residents with high-quality affordable homes which will be low-cost to heat and run.Jason Noble, Architect with Angus Council commented on the requirement for a high-performance solution to achieve the desired levels of vapour control and airtightness. “We required a high performing vapour barrier and air tightness layer, that could be installed on site by our contractor and achieve our performance specification. We wanted an effective vapour barrier and airtightness layer that when installed in accordance with the manufacturer’s recommendations and in combination with the timber kit construction would provide an effective airtightness rating of 4 when tested.”Contractor, Andrew Shepherd Construction proposed the use of the Procheck Adapt available from the A. Proctor Group, who has been serving the construction industry for 50 years with an extensive portfolio of technically advanced thermal, acoustic and membrane products.Thanks to its unique design, the Procheck Adapt membrane offers variable permeability which adapts to changes in humidity levels and allows the structure to dry out in the summer and in sunny days during spring and autumn while protecting it from moisture overload in the winter. This is possible because the membrane adapts its vapour resistance to the environment i.e., vapour tight in the winter and more vapour open in the summer.This ensures that the building fabric is protected from damaging moisture levels during cold, wet winter months, and allows the fabric to dry out effectively in warmer, drier months. The introduction of Procheck Adapt will ensure that it provides a high level of protection throughout the lifespan of the properties.Procheck Adapt has a translucent structure which eases fixing to structural frames and in combination with its integral tape allows for a fast installation time. Procheck Adapt is suitable for a variety of commercial and residential applications and provides airtightness to the structure as well as vapour control.

A new self-build farmhouse in the beautiful Scottish countryside has been fitted with the high-performing Wraptite air-barrier. The project is designed to Passivhaus standards by Architect Frances Strachan-Friar. Talla Fiodha (‘timber or wooden hall’ in Gaelic), Charleston Farm, near Errol, Perthshire, will be the new home for Frances and her husband.From the outset, the aim was to achieve a more sustainable design and follow a different approach from the traditional timber kit. After undertaking significant research into different types of construction, the architect selected Xilonor CLT cross-laminated timber installed by Glulam Solutions Ltd., Inverurie.Frances Strachan-Friar commented on how the selection of Wraptite has benefitted the development. “The specification of the correct type of airtightness barrier was critical in achieving thermal efficiency. Wraptite was chosen because it allows the airtightness layer to be fitted to the outside of the construction. In doing so, the external application of Wraptite provides essential protection in the form of waterproofing and weatherproofing for the CLT during the build.“The Wraptite system was great and easy to apply, especially around junctions, enabling us to seal all of the junctions completely. The use of a traditional membrane would not have given the same performance. I have previously specified products from the A. Proctor Group, but this was the first time using Wraptite. Proctors provided a comprehensive Toolbox Talk and have been a great support throughout the project.”The Wraptite system is the only self-adhering vapour permeable air barrier certified by the BBA. It combines the critical properties of vapour permeability and airtightness in one self-adhering membrane. As a result, it provides high vapour permeability in a continuously sealed, airtight membrane.The high vapour permeability of the Wraptite air barrier allows the substrate beneath to dry quickly and moisture vapour to escape and reduces the likelihood of mould, mildew, condensation, timber distortion and metal corrosion. The vapour permeability of Wraptite also allows any water vapour to escape efficiently, thereby avoiding interstitial condensation problems.Designed to replace traditional airtightness methods cost-effectively, Wraptite is a low-resistance vapour permeable air barrier, durable, flexible and lightweight, allowing for easy installation, with the added benefit of providing temporary protection against the elements during construction

Queens Crescent is a bustling retail street situated in London’s Kentish Town. The roof area above the Post Office building, which also served as a communal walkway area with access to the upper level of the adjacent buildings, had been suffering from leaks. To add to the issues, the aged promenade tiles had worn and become a slip hazard when trafficked. Looking for a lasting waterproof solution that can also provide heavy duty anti-slip surfacing, the client turned to Polyroof for a solution. To minimise access disruption to the upper level adjacent buildings, the client had organised a 5-day window for the waterproofing and surfacing works to be completed.The SolutionThe main contractor had removed the old paving slabs and membrane back to the concrete deck underneath and carried out repairs to create a level surface.Approved Polyroof Contractor Emperor Roofing began by priming the concrete surface to create a sealed, non-porous substrate. With its quick-curing properties, the Polyroof primer was ready to be over-coated only 30 minutes after its installation.A specialist twin-pack epoxy metallic primer was applied to metal detailing sections, including ducting vents and the intricate balustrade detail alongside the communal stairwell, which also formed part of the specified works.Local reinforcements were carried out to these details involving taking Protec resin and PolyMat 450 up by 150mm before applying the full waterproofing system.Upon completion, the balustrades were re-painted, with the paint being taken over the waterproofing membrane to create a neat detail. A key advantage of liquid systems in general is their ability to seamlessly seal around complex detailing; in this instance, quite simply, the balustrades could not have been sealed effectively using a traditional waterproofing technology.Polyroof’s Protec System enjoys exceptionally fast detailing speeds, where its formulation allows it to rapidly break down the chopped strand mat reinforcement and neatly moulds around the detail it is covering. To the left of the stairwell, the Protec system was chased in at a height of 150mm above the level of the stairs.The termination point of the waterproofing membrane was sealed with mastic to create a fully weatherproof detail. The Protec system was dressed onto the wall abutments to the main areas but left self-terminated as new render is to be applied to the walls and taken down over the top of the Protec system.After local reinforcements were completed the main waterproofing system was applied to the walkway and stair areas.The two-coat Protec system was able to be rapidly installed with its 30-60 minutes cure times, meaning the project was comfortably ahead of schedule by the time it was complete.Next, the designated anti-slip areas were carefully masked off, leaving the exposed waterproofing to the roof perimeters, detailing and vertical sides of the step and stairs. A third coat of Protec was applied to the masked sections and, whilst the liquid was still wet, 0.7-1.2mm quartz sand aggregate was broadcast into the resin.Once dried, the aggregate is embedded within the membrane and lose sand was brushed off and collected to be re-used. In order to provide an extra-tough surface that sealed that aggregate in place, a coating of PolyFinish was applied over the aggregate in the client’s choice of light grey.

The Protec System was used to waterproof the domed green roof areas of this striking, sustainable house development which was featured on Chanel 4’s Grand Designs. With an ambitious vision and a tight budget, Robert and Milla Gaukroger set about transforming a dated 1980’s house overlooking Lake Windermere into a state-of-the-art, eco-conscious home. Since the house lay in beautiful hillside surroundings, in order to blend into this setting, the domed roofs of the house were to be covered with a wildflower meadow mix to provide a green roof construction.The SolutionThe Protec System was chosen as a waterproofing membrane for the roofs as it is ideally suited for green roof applications. Lightweight, flexible and highly durable, the system can easily accommodate structural expansion movements and is tough enough to resist root penetration. The Protec system was applied to over 350m2 of domed roof to provide a long-lasting waterproofing membrane.The key reasons why Eastleigh chose Protec are the same reasons that has seen it become one of the fastest growing cold-applied liquid roofing systems in both the new build and refurbishment markets. Combined with the timber cladding to the verticals of the building, the finished aesthetics of the development blended seamlessly with the surrounding areas.A warm roof build-up that can be made waterproof at multiple stages:For larger projects the Protec system can be made temporarily waterproof at two stages prior to the application of the full waterproofing system. The first stage is upon installation of the sealed, aluminium-faced vapour barrier.The second phase follows the reinforcing of the foil-faced insulation board joints with Protec resin and taping mat. This enables a much more controlled approach to the installation with a greatly reduced chance of rain causing disruption and damage during the works.Highly flexible membrane:Regardless of the size of the roof, Protec forms a homegenous membrane, without a single joint or seam and without the need for any expansion joints.RapidCure technology for quick installation:The application of Protec as a liquid, through to the curing process where a solid, tough membrane that can be walked over, takes only 30 – 60 minutes. This enables large sections of the roof to be fully completed in a short space of time.Installing the Roofing SystemsThe Protec System provided waterproofing to all flat roof areas as well as the extensive parapet wall sections. The roof areas were made up of two designs: the Protec Warm Roof System (approx 7,500m2) and Protec applied to concrete as part of an inverted roof design (approx 1,000m2).The roof installation was carried out with a planned, phased approach that was synchronised to the wider construction schedule. For the warm roof areas, the first stage was to fill the troughs of the structural metal roof deck with acoustic insulation infills that will dampen external noise within the leisure centre. Next, the crowns of the deck were primed ready to receive the self-adhesive vapour barrier.The use of a high-performance aluminium vapour barrier not only eliminates the risk of condensation within the roof, but also provides temporary waterproofing protection, which is extremely useful on larger works such as this.The Polyroof RES Insulation boards, which comprised of a two layer system totalling 170mm to achieve a U-Value of 0.14 W/m2K, were bonded using high-performance PU adhesive to the vapour barrier. Following the wind uplift calculations it was determined that mechanical fixings were not required for this application – making for an extremely rapid installation. As you can probably imagine, fixing through 170mm of insulation into the crowns of the metal deck can be a tricky and time-consuming task.A key advantage of using a tongue and groove insulation system is that the finished surface of the roof is smooth and level without any unsightly board steps that can also lead to standing water issues. The insulation board joints were sealed using Protec resin with Polymat Taping Mat 450 which, in addition to providing additional strength to the joints, also creates a temporarily waterproof layer.For the inverted roof sections, Protec was applied directly to the primed concrete/screed surface. The membrane was inspected by Polyroof Technical Services, signed off and then covered with inverted roof components. An interesting fact when using Protec in inverted roof situations is its incredible durability performance – as tested by the BBA, Protec “can provide an effective barrier to the transmission of liquid water and water vapour for the design life of the roof in which it is incorporated”.Monitoring and CompletionThroughout the duration of the contract, Polyroof Technical Services carried out regular site visits that were reported back to Interserve as part of Polyroof’s free-of-charge contract monitoring service. This enabled the client to keep up-to-date with the progress of the roof installation in detail and also provided peace of mind that the original specification was being closely followed and implemented.Polyroof worked closely with the Roofline Group during the installation, enabling the challenges were identified and solved in an efficient and coordinated manner – saving the client time and money.

Measurements made on a glass measuring table led to unusable results because the isolator used was unable to cope with the lateral stiffness of the products used. Only the low-frequency pneumatic isolators PAL 21 from ACE with automatic level control could provide a remedy. A special feature of these membrane pneumatic isolators lies in the level control valve, which has, by virtue of its construction, an above-average longevity. Relatively large acceleration forces can lead to horizontal movements and it is particularly in such situations that the robustness and durability of the isolation system make a significant contribution.

Spinnaker House is a residential building located at Battersea Reach, with views over the River Thames. It was designed by Broadway Malyan Architecture firm, with a contemporary specification, including full heigh glazing to enhance natural daylight. The location of the building is very attractive, because it offers prime transport links to London´s most fashionable area. In order to protect the façade building from moisture, driving rain and wind the solution Effisus A2 Fire Rated Breather FR System was applied, using an A1 Fire Rated Breather FR Membrane.

The now disused St Margaret’s Head Tunnel was a structure originally formed as part of the Dunfermline to North Queensferry railway line, providing a link to the ferry service until the opening of the Forth Bridge in 1890 and remaining in limited use for freight until 1954. The vaulted roof and brick lined tunnel is located 15 metres below the A900 trunk road and the B981, adjacent to the northern approach to the Forth Road Bridge. Cordek were asked to supply a structural fill solution, encapsulated within a protective membrane to fill the entire cavity of the tunnel.

The overall construction consists of 12 (mixed-use) buildings including the three primary towers which extend upwards over 54 storeys. When complete the towers will provide exception views over London, from the Thames and London Eye to the new American Embassy. In order, to protect the façade elements and ensuring the protection of the building against driving rain and moisture preventing future corrosion, insulation deterioration and mould growth at the same time it increases the building energy efficiency and minimizes the condensation risk, Effisus Breather FR-B Membrane were applied.

Products: Flexi heavy – Modular Frameworks & Flexi Access – Bespoke access platforms. Services: Air-handling units & associated access requirements. Roof build-up: Warm roof design – PIR/PUR insulation with PVC/TPO field membrane. Pump House were proud to have been chosen as the preferred supplier of building services support systems to the project, with support frames required to fourteen rooftop air-handling units. Each framework was also accompanied by a bespoke access platform to one longitudinal side of the air-handling units for maintenance purposes.

The property, that has been renamed Axis, has four floors and an amazing facade, composed by a structure of beams and supports that cross diagonally. A feature that allows to minimize energy costs, because of the large stainless steel and glass cube that uses the latest technologies to combine a transparent facade with an outer mesh. Effisus Ecofacade SA Edge membranes were used on this project for sealing facade connections. Effisus Pre-Fab True Seal, a pre-fabricated sealing solution, was developed and applied for sealing difficult facade 3D details, minimizing human error possibility.

The 760,000 sq ft development will bring the Old War Office back into use, creating a world class 5-star hotel and 85 apartments. Works will include developing a six storey basement and constructing a three storey roof extension. The venue has been designed by UK-based EPR Architects, with the hotel interiors designed by New York-based designer Thierry Despont, and the residences by 1508 London. A1 Fire Rated Breather and Vapour FR Membranes were used to protect the insulation and building interior, maximizing its energy efficiency and value.

London Wall Place is a new development, with more than 500.000m2, located in the heart of London, between Moorgate and Barbican. This development is comprised by two commercial buildings and will add a large green area to the city. The largest building has about 300.000m2 and rises to a height of 12 floors, and the remaining building, with about 12.000m2, has 16 floors. For this project’s façade weatherproofing, three Effisus solutions were used: Effisus VAP (vapour barrier), Effisus Breather+ (breathable membrane) and Effisus 2Bond DS (double-sided solution for sealing between two surfaces).

Following the success of the Shoreline and Ocean hotels at Butlins’ Bognor Regis Resorts, the Butlins Wave Hotel is the newest addition, with the widest range of accommodation options. All three have been waterproofed by the Roofline Group. Cefil single-ply roofing membrane covers tapered insulation, with Fixfast tube washers and fasteners holding it all in place against the prevailing sea winds."We always get good service from you guys - that's the main reason we've stayed with you all these years"Bryan Lock - Project Manager at Roofline Group Ltd

The Ascent Up and Over step unit / Industrial stair system was specified to create a safe means of access up & over items of mechanical plant & equipment to the roof of the airport terminal building. The Industrial stair unit is supported on rubber spreader feet which provide a non-penetrative support solution on the flat single ply membrane roof. The stair unit is designed in accordance with BS EN ISO 14122-1:2001 + A1:2010 and Building Reg Part K:2013 and manufactured following 1090 factory production control procedures.

In a complex new build roofing project that was deemed almost impossible, Contour Roofing stepped up to the challenge with a Sika Sarnafil membrane. With truly stunning results, the project impressed the judges of the prestigious NFRC UK Roofing Awards, winning the Single Ply category. In partnership with Sika Sarnafil, Contour quickly presented a new bespoke specification; an adhered system using Sarnafil G410-15ELF Lead Grey with a polyester fleece backing as the main roof sheet for a flawless result and Sarnafil G410-15EL Lead Grey for all the detail work flashings.