Alumasc Roofing

Scotland’s Largest Single Office Building with Rooftop Running Track and 360 Panorama.A Sustainable and Futureproof Roof, Harnessing the Power of the OutdoorsBothwell Street in Glasgow is now home to an exceptionally progressive office space – making way fora new chapter in the rich history of the area. If there are any doubts about what Grade A office spacereally means, then think touchless entry, bike storerooms, lux changing facilities, an 8,000 sq. ft roofterrace, a 150-metre rooftop running track, 4 activity zones/terrace spaces and panoramic views.The project complements the sustainable regeneration programme along the Clyde Waterfront also,home to the new financial Northern European hub, firmly cementing the business district at the heart ofmodern Glasgow.GOALSThe architects at Sheppard Robson have made sure sustainability and lifecycle credentials remaincentral to the design specification. Occupants’ wellbeing has been carefully considered with a stunningpanoramic rooftop and 150m running track and general outdoor employee wellness facilities.A roofing solution was required to support the lifecycle of the building along with an excellentproduct reputation for this distinguished office space. Given the quality, longevity and environmentalconsiderations required from the roofing design, the insulation properties and warranty performancewere extremely important from the outset.CHALLENGESOur Technical department assisted the architectural and construction teams to resolve numerouscomplex design elements across the varied roof zones including running track, ballast walkways, greenzones, and pedestal zones, to determine the best roofing solution.Installation of the Davit Arm System for a building of this scale was especially important so personnel canbe safely suspended whilst working at height. This presented us with a unique challenge in providing aworkable solution that aligned with the sequence of works, whilst facilitating future routine inspection ofits base plates, and maintaining waterproof integrity without compression.Careful planning and detailing were required around roof penetrations to minimise aesthetical impact,and roof equipment was safely installed above the roof assembly.SOLUTIONThe construction comprises a composite concrete slab receiving our Hot Melt Hydrotech Waterproofing System. Offering a true lifecycle – Hydrotech high performance waterproofing, through its’ unique characteristics and installation process, now forms part of the building fabric. The result offers complete watertightness for the lifetime of the building.The building is also insulated to a high u-value target offering exceptional thermal performance and achieving a high kPa rating. This was essential to receive loadings from all components including overlying finishes, roof equipment and the end use for the building occupants.Key fire performance standards were achieved throughout including the lift overrun and lower roof terrace areas where the preferred solution was switched to our Derbigum sustainable warm roof system to maintain project performance targets.LIFECYCLE MANAGEMENTDesigned with BREEAM credentials and an EPC rating coming in at below 10 the careful focus on lifecycleconsiderations and the choice of materials throughout the building envelope is exemplary.Hydrotech hot melt is a high-performance solution containing 30% recycled content and zero productfailures in over 50 years, offering lifetime peace of mind, designed for the service life of the roof.PROJECT DATACompletion: Autumn 2022Building Type: Commercial OfficeProduct Application: Hydrotech & Derbigum waterproofing systemsCertification: BBA Approved, European Technical Approval & FM Global Class 1Architect: Sheppard RobsonMain Contractor: HFD Group

Derbigum + BluRoof = Sustainable Drainage Solutions Mitigate your risks with Alumasc BluRoofs Think Stormwater Management - Derbigum BluRoof SolutionsA 5-minute hop from Cardiff Queen Street and you’ll find the first blue roof in Wales. Upon what was formerly 1960’s office accommodation the Cromwell House site has been transformed into an 8 storey, 120-bedroom easyHotel with a rooftop stormwater management system. OUR DESIGN PROCESSOur clients at Carter Lauren Construction were interested in learning about the benefits of a blue roof to meet planning conditions. ” Working in a compact city centre environment where ground attenuation was not possible, it made sense to install a blue roof. The Alumasc team demonstrated how their BluRoof System attenuates stormwater via controlled discharge over a 24-hour period at roof level.” Kevin Jenkins, Surveying Director, Carter Lauren Construction. CLIENT BRIEF AND DESIGNWorking closely with the appointed consulting engineer and architect, our team of technical experts designed a solution for stormwater attenuation to comply with planning and meet all other project objectives. Alumasc’s Matt Davies, Area Technical Manager - Mid, West & South Wales commented, “Given the urban location, the Alumasc BluRoof system was the perfect fit in providing a fully warranted single-source waterproofing and sustainable drainage solution.”The Alumasc technical team provided a full specification service and specialist drainage design using key data from the project brief. By incorporating our BBA Accredited Derbigum APP polymer modified bituminous waterproofing system the longevity of the total solution is assured with a proven track record since 1967. Other key components comprise of a BluRoof geotextile filter fabric, BluRoof interlocking void former, flow control outlets, and overflow system.ENVIRONMENTALLY FOCUSSED SOLUTIONExtreme weather events are now the new normal, says the World Meteorological Organisation. Our rainfall patterns are becoming increasingly unpredictable, and we must plan accordingly to adapt the built environment to help alleviate flood risk. PARTNERSHIPWorking with the contractor to construct the first blue roof in Wales. Kevin Jenkins, Surveying Director, Carter Lauren Construction, “Matt and the Alumasc team were available throughout the design and installation process. We knew that installing the BluRoof by Alumasc was the right decision for the future of the easyHotel and the benefit to reduce pressure off the drains.” SAFETY PERFORMANCEThe easyHotel has a 35-year warranty for the works and life expectancy of up to 50 years.ABOUTEasy Hotel Cromwell House, Cardiff - Wales’s first blue roof. Completion: Spring 2021 Main Contractor: Carter Lauren Construction Architect: Axiom Architects 

Brand New Oasis Academy, Silvertown Leads Education Facilities by a Mile with Garden Roof Spaces, and Rooftop Sports Pitch In the heart of what is now the Royal Docklands, a former industrial zone south of Royal Victoria Dock lies a brand new carefully considered Academy. Set to serve 600 students in this emerging community, the “superblock” thrusts modern educational facilities well into the 21st century. Despite the constrained site, the building design harmoniously incorporates vantage points from outdoor social spaces at varying levels.There’s no need to worry about a gravelly all weather pitch causing havoc at your hockey match. There’s a state-of-the-art full size Multi-Use Games Area, lush planted external roof spaces, a double height sports hall, and main hall/performance area making up the core of the building inside.CLIENT BRIEF AND DESIGNRenowned in their field, regeneration experts Morgan Sindall required a single sourced end-to-end roofing solution that could deliver a full system specification underpinned by a 35-year system warranty, installation expertise and site management.Understanding the Architect’s vision at award winning Rivington Street Studio to create a transformative educational haven and maximise the potential of the outdoor roof areas helped the Alumasc Roofing team bring this roof to life.PARTNERSHIPWorking with the project teams across Morgan Sindall, Rivington Street Studio and Fenland Flat Roofing pushing the boundaries and setting the standard for the future of the built environment in the Education sector.Tim Mott, Senior Design Manager, Morgan Sindall, “Brian and the Alumasc team have been on-site with additional safety constraints and delivered high-quality regular progress reporting to achieve the deadlines for the students to move in next year and really put these fantastic facilities to use.”Brian Cottington, New Build Regional Manager - South East & London, “The original specification included warm roof build ups which utilised tapered insulation, however this was subsequently adapted and working closely together with the Architect, Morgan Sindall and Fenland Flat Roofing we implemented a universal standard build up using an inverted system, with less complexity whilst achieving the high system performance and BRoof (t4).”Richard Trew, Associate, Rivington Street Studio, “The garden roof areas and outdoor space bring this building to life and against the industrial backdrop create a nurturing school environment. It was great working with the Alumasc team solving problems and overcoming design challenges along the way.”Chris Preston, Estimator, Fenland Flat Roofing, “Working closely with the local Alumasc Roofing Site Technicians and engaging in extensive discussions agreeing the final system requirements meant the installation process ran smoothly.”ENVIRONMENTALLY FOCUSSED SOLUTIONThe high performance Hydrotech inverted roof is a special formulation of refined asphalts and synthetic rubbers with 30% recycled content. Installing insulation with exceptional thermal properties including 300mm extruded polystyrene insulation and 56mm inverted upstand insulation effectively reduces heat loss.SAFETY PERFORMANCEThe application is a one-component, hot-applied, fully reinforced, flexible, self-healing hot melt monolithic membrane, applied in a liquid state to the substrate giving a 100% absolute and seamless bond.The Academy has a 35-year warranty for the works and has a fire classification of BRoof (t4) in accordance with BS EN 13501-5.ABOUTThe Oasis Academy is set to open its doors February 2022. Images courtesy of Rivington Street StudioCompletion: Autumn 2021Main Contractor: Morgan SindallAlumasc Registered Roofing Contractor: Fenland Flat RoofingArchitect: Rivington Street Studio

Creating Paradise: Alumasc Delivers for the Complete Building Envelope for One Chamberlain Square Paradise Project One Chamberlain Square is the lead project in a wider vision to create Paradise in Birmingham—the most important development the city has seen in a generation. With the help of Alumasc offering solutions for the entire building envelope, One Chamberlain Square is set to be a vibrant mixed use development that will not only be the new home of professional services firm PwC, but will endeavour to maintain a balance between busy urban hub and the natural world. To do this, Alumasc provided a range of products and services encompassing the entire building envelope, specified by Weedon Architects. This included a Blackdown Extensive Brown Roof, applied over Hydrotech Hot Melt Waterproofing, alongside Harmer Roof Outlets and bespoke solutions from Roof-Pro, for building D: an eight-story commercial building over a podium car park. Inside, bespoke blinds by Levolux, also an Alumasc company, were installed. “This is an extremely high-profile development, which demanded trusted, standard setting products,” said Owen Doherty, Director at Weedon Architects and Project Architect for the venture. “All systems decided on were chosen on quality, durability and enhanced design life compared to competition.” ON THE ROOF OF PARADISEBlackdown’s Extensive Brown Roof is a green roof in the making. Covering approximately 4000m2 of roof space for this project, One Chamberlain’s ‘brown’ roof is installed without plant life and will naturally seed from plant material that either blows in from the local environment or that is introduced by birds. In this way, it literally replaces the green space that has been taken up by the construction of the building it lies on, encouraging biodiversity by providing and strengthening habitats for wildlife local to the area, with truly local plant life. Typically, the substrate is mounded to offer habitat variation, therefore the depth of the brown roof can vary be between 92-170mm and have a saturated weight of approximately 113-213kg per square metre, depending on the depths of the substrate. Beneath this, Hydrotech MM6125 roofing, a hot melt rubber bitumen membrane, delivers sound structural waterproofing. The bitumen is heated and combined with a polyester reinforcement and protection sheet to form a weatherproof layer that has a 100% bond to prepared concrete surfaces. With no product failures in over 50 years, Hydrotech Hot Melt roofing is guaranteed for waterproofing integrity for the lifetime of the structure. Working in tandem with each other, the Blackdown Extensive Brown Roof helps to extend and reinforce the life and guarantee of the waterproofing, offering a protective layer of natural insulation. Giving his seal of approval, Owen said: “I only specify Alumasc hot melt at the moment and have done for many years. All products and systems chosen here have had zero product failures and I have never had any issues with technical specifications on previous high-profile buildings.”PROVIDING EFFICIENT DRAINAGEGiven the huge expanse of roof space involved this project, effective flat roof drainage was essential. Harmer AV high capacity aluminium roof outlets were installed for this purpose. Suitable for all regular flat roofing applications with continuous membranes, these outlets are lightweight, durable, non-corrodible and have been proven to drain 40% more roof area than conventional gravity outlets, therefore further ensuring the long life and service of other flat roof systems. Aiding project completion, Roof-Pro support systems were also tailored bespoke to meet the roof structure requirements. Free-standing support and access solutions were devised that would allow work to be carried out safely, efficiently and without causing damage to any of the roofing systems being installed. A WORD FROM THE CONTRACTORChristian Bradley of Briggs Amasco, who installed the roofing, commented: “One Chamberlain Square and the surrounding podium waterproofing form part of the largest construction programme in Birmingham. We are extremely proud to be working on this landmark project. “The products and systems installed all have long legacies of successful projects behind them, and there are no better guarantees than real results. They also offer excellent value for a competitive cost. These are just a few of the reasons why we love working on Alumasc projects. Alumasc offer a single source for all solutions, bespoke design detailing and the technical support is always on-hand when you need it.” Completed in autumn 2019, One Chamberlain Square forms an integral part of a masterplan redevelopment that will transform part of Birmingham City Centre.

Heslington East Campus Student Residences: Sustainable and Efficient Expansion Alongside the preservation of listed buildings, the University of York is investing in a flagship £130m development for students that promotes wellbeing, community, and sustainability. The initial phase sees 16 brand new student accommodation blocks and 2 communal hub buildings providing flexible social spaces. Surrounded by stunning lake views and natural habitats, the buildings are part of a huge initiative to expand the student accommodation offering.GOALSArchitects Sheppard Robson alongside Graham Construction sought to futureproof accommodation by incorporating multi-use buildings, including catering outlets and social hubs. Key to the brief was using the latest in safety, energy efficiency, longevity, and warranty credentials. Graham Construction’s use of modular external sandwich panels, prefabricated steel bathroom pods, and pre-assembled services distribution racks used Modern Methods of Construction with off-site construction techniques.CHALLENGESThe major challenge was to specify a roofing system that could keep up with the pace of the build, given the typical building was constructed from start to finish in circa 14 weeks.The roof deck comprised of precast concrete slabs which facilitated the works programme for speed of construction and consistency in build quality.Alumasc’s challenge was to find not only a waterproofing solution that was able to keep up with such speed of construction but also to meet a truly sustainable life cycle equalling the lifetime of the building.A key consideration in the design was the roofing materials’ thermal properties. To meet the u-value target of 0.15, Alumasc’s XPS Plus insulation was specified, providing a single layer of 175mm, which reduced the height of the overall build-up when compared traditional XPS.SOLUTIONHydrotech 6125 Waterproofing System / Derbigum Hybrid Upstands For over half a century Hydrotech Monolithic Membrane has been successfully used by architects and specifiers, ensuring some of the world’s most prestigious buildings and structures are kept watertight. With no product failures in over 50 years and guaranteed waterproofing integrity for the lifetime of the structure, Hydrotech offers a total life cycle solution for the building.Hydrotech was specified on the main roof areas for this project as it easily meets individual requirements of the buildings. In addition, the system is designed to last the lifetime of the building or structure to which it is applied, giving long-term waterproofing integrity and no future replacement costs.Applied in a hot liquid state to the deck, and including a polyester reinforcement, the bond of Hydrotech MM6125 is 100% absolute. There is no risk of water tracking below the membrane and because it is monolithic, no possibility of lap failure.DERBIGUM WATERPROOFINGDerbigum sustainable roof system was selected for the upstand areas. This hybrid solution was developed to improve the thermal efficiency in all areas to mitigate against cold-bridging with minimal insulant thickness. Derbigum bituminous membranes are high-performance waterproofing systems offering extended warranties and the highest levels of project support. The upstand zones benefited from Derbigum Mineral which is a mineral surfaced composite reinforced membrane.ROOFTOP MANAGEMENT STRATEGYIn addition to the waterproofing solution the buildings benefit from the full Alumasc rooftop management service. This included the design and supply of safety systems, accessories, and over 20 AOV smoke hatches meeting all British and European standards.Specific safe zones were designed by Alumasc Roof-Pro and positioned around all roofs for safe access. Purpose made clips for installing lightning conductor tape without roof penetration were also provided. All rooftop accessories are part of the Alumasc Roofing specification and therefore can be found back-to-back within the Alumasc 35-year system warranty.PROJECT DATACompletion: Autumn 2022 BuildingType: Student Accommodation ProductApplication: Hydrotech & Derbigum waterproofing systems Certification: BBA Approved & European Technical Approval Architect: Sheppard RobsonMain Contractor: Graham ConstructionAlumasc Registered Roofing Contractor: Tandragee Roofing