< Previous30 MEP Middle East | May 2021 www.mepmiddleeast.com INTERVIEW At the turn of the 21st century, the United Nations set out its Millennium Development Goals building upon more than 10 years of conferences and summits, which were further advanced 15 years later through the organisation’s Sustainable Development Goals (SDGs) – a collection of 17 integrated ‘Global Goals’ that looked beyond economic sustainability to encompass social and environmental sustainability, as well. Commonly known as the UN’s SDGs, these Global Goals raised the bar for what should be expected by companies at the forefront of their industries – with the SDGs 6, 7, 9, and 11, calling for specifi c and consistent action to improve clean water and sanitation; affordable and clean energy; industry, innovation, and infrastructure; as well as sustainable cities and communities, respectively. Dubai-based “sustainable consultancy” and engineering fi rm, Consistent Engineering Consultants – which specialises in design, green buildings, retrofi t projects, and sustainable energy solutions to enhance built environments – was among the fi rst consultancies in the Middle East industry to identify the “state of crisis” within the construction sector. Speaking in an exclusive interview with MEP Middle East, the managing director of Consistent Engineering Consultants, Sagar Kulkarni, said: “The change in Consistent’s approach to the market began as early as 2017-18. We realised early-on that the UN Sustainable Development Goals would defi ne the future of the construction industry. Our role within MEP and HVAC became crucial, especially given that this sector within the built environment is a major contributor to CO2 emissions and global climate change.” It’s no secret that the existing global building stock is a leading contributor to greenhouse gases (GHG), generating approximately 40% of annual global GHG emissions. EXISTING BUILDINGS NEED: BETTER PRODUCTS, BETTER MAINTENANCE, AND BETTER UTILISATION The managing director of Consistent Engineering Consultants, Sagar Kulkarni, talks about the firm’s journey into becoming a “sustainable consultancy”; digs deeper into the need for buildings to clean their carbon footprint; and calls for a collaborative effort to yield energy-efficient results in conversation with MEP Middle East editor, Anup OommenMay 2021 | MEP Middle East 31 www.mepmiddleeast.com INTERVIEW Kulkarni added: “The need to address the energy consumption and carbon footprints of buildings has become increasingly important. Within the projects that we were working on, we began to focus on improving the energy effi ciency; lowering carbon emissions; reducing water consumption; and switching to renewable sources such as solar. This is how we moved from being an MEP consultant to becoming a sustainable consultant.” Sustainable projects come to life In terms of completed projects, Consistent was responsible for retrofi t works on Dubai’s Oasis Mall, which witnessed energy consumption drop by approximately 20%. Consistent also focused on reducing energy usage and operational costs. Energy-effi cient solutions including VFD controlled kitchen exhaust and make up air system; FAHU with 100% re- circulation; and LED lighting systems were executed and implemented on the Oasis Mall project. Referring to recent projects, Consistent’s Kulkarni alludes to completing retrofi t works on a 2.4 million square feet project near Zabeel Park in Dubai. Consistent modelled and analysed the project, and implemented a sustainable approach, which resulted in 23.8% energy savings with respect to the base model of ASHRAE 90.1. In terms of ongoing retrofi t projects for the existing building stock, Consistent’s energy retrofi t project at Abu Dhabi’s Anantara Hotel Resort at Sir Bani Yas Island is expected to provide energy savings of 23% annually on the chiller system operations. Consistent divulged to MEP Middle East that the scope of the project will include a chiller upgradation feasibility study via energy analysis as well as the de-signing of a new energy-effi cient chiller system focusing on better energy savings. “When it comes to energy savings, data is key to bringing sustainable projects “We strongly believe that the market is not going to be the same as it was before 2020. The skill sets that will be required in the near future are different, and we’ve taken a proactive approach to align ourselves towards this direction,” Sagar Kulkarni says.32 MEP Middle East | May 2021 www.mepmiddleeast.com INTERVIEW to life. One cannot make a claim of 20% energy savings without demonstrating that claim based on norms stipulated by ASHRAE, CMVP and the other such bodies. Consistent has grown and gained the required qualifi cations to demonstrate such energy savings within the market,” Kulkarni clarifi ed. “As a result, we are getting a lot of inquiries to provide solutions that will help improve energy savings on existing projects. Rather than constructing buildings and rectifying them afterwards, the time has come for projects to be implemented sustainably right from the start.” Switching to “Sustainable Consultancy” The shift to becoming a sustainable consultant was easier said than done. Consistent, as a company, had to undergo a lot of internal changes. The company moved from the ISO 9001 certifi cation – which demonstrates the fi rm’s ability to consistently provide improved products and services that meet customer and regulatory requirements – to the ISO 14001 certifi cation of Environmental Management Systems, which recognises companies that demonstrate a consistent ability to diminish the environmental impact of their businesses including through emissions, waste-handling, utilisation of natural resources, and energy-effi ciency. The company is also ISO 45001 certifi ed for its focus on occupational health and safety, and ISO 50001 certifi ed for its energy management capabilities. “During 2020, specifi cally, we upskilled our whole team when the markets were down. The teams were also geared up with additional qualifi cations such as CMVP for measurement and verifi cation; certifi ed as managers; and certifi ed as high- performance building professionals. Our workforce was uplifted as a whole to cater to our renewed focus and sustainability requirements,” Kulkarni added. “We strongly believe that the market is not going to be the same as it was before 2020. The skill sets that will be required in the near future are different, and we’ve taken a proactive approach to align ourselves towards this direction that the industry needs to address.” Consistent – which has been active in the UAE for more than 13 years – has not only gone above and beyond its green building regulatory mandates on ongoing projects; it has also gone a step further in addressing the need for the existing building stock to clean its carbon-heavy footprint. Kulkarni explains: “When we analysed the market, we realised the importance of addressing the market in two segments – the new projects and the existing building stock. This is also because approximately 90% of the existing building stock was constructed at a time when the green building regulations were not in place. “We noticed that new and upcoming projects attempted to demonstrate ‘better’ and ‘greener’ construction through modelling and visualisation methods. From traditional technologies such as AutoCAD, construction stakeholders began moving the implementation of new projects to better 3D-modelling technologies such as Revit. We took advantage of this tech- friendly market sentiment and began modelling on older projects to improve energy effi ciencies.” Need for a collaborative approach As the UAE continues to push for positive action in the areas of controlling its Sagar Kulkarni Managing Director, ConsistentMay 2021 | MEP Middle East 33 www.mepmiddleeast.com INTERVIEW contribution to climate change; improving the availability of clean water and proper sanitation; renewable energy adoption; as well as the responsible production and consumption of resources, the role of consultants within the construction industry has become just as important as the role that each citizen and resident within the country. Aiming to reduce more than 1 million tonnes of CO2 by 2030 and achieve more than 1.7TWh of electricity savings by 2030 as part of its Dubai Vision 2030 plan, the emirate has mandated a 30% reduction in energy consumption by 2030. “If you read between the lines, these goals provide a lot of clarity in terms of what needs to be done,” Kulkarni says. “From our own homes and villas, expanding outwards to our buildings, our communities, and to Dubai as an emirate, it’s important to implement this 30% reduction of electricity consumption at each of these stages. This will require active participation from every stakeholders in each of these sections. This means a focus on three key tenets: Better products, better maintenance, and better utilisation at the end level.” Implementing these three key tenets will mean a collaborative effort that involves everyone from developers driving the budgets on projects; to consultants, contractors and stakeholders working on the project; to manufacturers, suppliers and stakeholders fabricating, installing, and commissioning the products; to the operations and facility management teams maintaining the completed projects; to the owners and occupiers living or working on the premises. “We are all responsible. Even if we design a green building, but do not maintain or operate it properly, it will not yield the required results. This has been witnessed on a number of projects, and over a period of two-three years, the results can be quite alarming.” Having created awareness through a number of channels, including webinars, Consistent has increased the focus of its role in this collaborative effort. “The systems of implementing energy effi ciency measures are changing. The general guidelines and authority requirements – such as creating air conditioning systems that have a safety of 24-degree Celsius, irrespective of the climate – are getting outdated,” Kulkarni explains. “For consultants, the time has come to establish and integrate performance- based designs. The industry needs to move beyond design-and-comply methodologies to models that analyse the implementation in order to make projects more sustainable.” Furthermore, Consistent has registered itself with Etihad ESCO, which helps companies develop energy strategies and best implement energy-effi cient methods of electricity consumption. Kulkarni concludes: “We’ve decided to set a positive and proactive course for the future. It’s time for consultancies to go a step beyond preparing detailed ‘sustainability’-based reports and action plans, and become practically and actively invested in the implementation of these recommendations through retrofi t projects.” “With the UAE government taking the lead in such initiatives, even future fi nancing models will take social improvisation into consideration. We believe that this will add further momentum to the sustainability dialogue going forward.”34 MEP Middle East | May 2021 www.mepmiddleeast.com OPTIMISED HYDRAULICS UAE-based premium real estate developer Sobha Realty’s Creek Vistas project – which is located within the developer’s $4bn Sobha Hartland master development in Mohammed bin Rashid Al Maktoum City (MBR City) – has become the fi rst project in the UAE to use Geberit Group’s SuperTube technology. Spread over an area covering 743,224m2 of freehold community, the Sobha Creek Vistas project involves the construction of 28-storey twin residential towers, comprising one- and two-bedroom apartments, equipped with balconies, fully- fi tted kitchens, central air-conditioning, and smart home automation. The towers rest on a two-level podium, and will provide prime vantage points for the city’s iconic landmarks. Designed by PNC Architects and with Sobha Realty as the owner and client on the project, the residential development is being constructed under the direction of Sobha Hartland Contracting as the main contractor. The Geberit SuperTube technology used on the project is a newly developed alternative to the conventional drainage system design. With a capacity of 12 litres per second, it offers a number of benefi ts in high-rise buildings. The Geberit SuperTube single stack system consists of the Geberit Sovent with BottomTurn Bend and BackFlip bend, which are moulded out of high density polyethylene (HDPE). Most prominently, due to hydraulic optimisation of the SuperTube system – which includes the Sovent fi tting that connects the fl oor to the stack along with two asymmetrical bended pipe sections – the traditional ventilation pipe is no longer needed. As a result, a great deal of space can be saved in the pipe duct. While the Sovent fi tting removes the need for ventilation pipes in the vertical stack, in the case of a vertical offset, a horizontal pipe section is generally required, causing the need for an additional ventilation pipe due to the pressure conditions in the pipe. Geberit’s two newly developed bends – BackFlip and BottomTurn – eliminated the unresolved problem in the vertical offset. Their hydraulically optimised design ensured that the air column in a stack is maintained, even when there is a change in direction of 90°. As a result, the two lower most fl oors could be connected to the same stack, conserving material and time on the building site. Speaking in an exclusive interview with MEP Middle East, the Head of Projects in the UAE for Geberit, Mohammed Al Samaneh, said: “Being the fi rst project in the UAE using the Geberit SuperTube technology, we had to demonstrate the system and install a mockup on-site to demonstrate the system.” Some of the engineers were skeptical about the idea of installing a building drainage system without ventilation pipes. However, Geberit’s Dubai sales team managed to convince the building owner and the sanitary engineer with the help of a realistic demonstration set-up of the product. SOBHA’S CREEK VISTAS PROJECT BENEFITS FROM GEBERIT’S SUPERTUBE TECHNOLOGYMay 2021 | MEP Middle East 35 www.mepmiddleeast.com OPTIMISED HYDRAULICS Yet, convincing the client that this was the best solution for the project was not the only challenge to overcome. “We also needed approvals from the municipality for the single stack system,” Al Samaneh explained. “In the demonstration, water fl owed through the transparent pipes and the fl ow-optimised fi ttings at the speed at which it would do in the actual system. “A clearly visible air column was formed inside the pipes, which allowed the sales team to give a textbook demonstration of the functionality of the SuperTube technology. Close coordination and communication with the authorities, the developer, the architect, and the consultant were key for the design and schematic drawings, which included the complete waste and soil drainage system.” Furthermore, the SuperTube system had to be cost-effective and reliable as well. Space-saving also infl uenced the client’s decision to go for Geberit SuperTube and the fact that Geberit were able to technically support each step of the construction phase was crucial. Al Samaneh said: “Originally the project was planned with a conventional triple- stack solution including ventilation stacks. With local authorities now trying to get more in touch with new technologies such as SuperTube, the approval process for a single stack drainage solution was fi nally approved. Getting all the approvals was certainly one of the main challenges.” It’s no secret that the drainage of high- rise buildings is more complex than the drainage in a single-family house, and it must withstand much higher discharge rates. In addition, such drainage systems need to be planned and implemented well. “The client was aware they could save space with the smaller pipe dimensions and less stack pipes, which cope entirely without ventilation pipes and with the horizontal pipelines not requiring a slope for up to 6metres. Material requirements were also signifi cantly reduced since the ventilation pipes were not required,” Al Samaneh added. With the implementation of the SuperTube solution, the lower most fl oors could be connected to the same stack and the pressure relief line was not needed due to the bottom turn bend. The Head of Product Management & Technical Sales Support at Geberit Gulf, Remo Hirschi, said: “The developer was seeking an innovative effective drainage solution with a suitable discharge capacity for their high-rise project which is why we proposed the Geberit SuperTube. Hirschi concluded: “This hydraulically- optimised system relies on a continuous column of air, reduces the number of stacks to one with a diameter of DN100, and with 12 litres per second, it has the required maximum capacity for the project.” Through the implementation of Geberit’s SuperTube technology, the number of stacks have been cut down from 3 to 1. The optimal space gained per bathroom is approximately 0.24m2 as the shaft space with optimal Sovent planning was reduced to 0.12m2, compared to the original shaft requirement on 0.36m2. Considering this over 28 fl oors of the twin-tower residential project, 269m2 of total space was gained, with no separate stacks required for the two lower-most fl oors. Mohammed Al Samaneh, Head of Projects in the UAE, Geberit36 MEP Middle East | May 2021 www.mepmiddleeast.com WATER SECURITY The Middle East and North Africa (MENA) region has witnessed the highest increase in the rate of population growth compared to any other region in the world during the past century. This growth in population is expected to continue, with studies suggesting a further 1.9% increase in the region’s overall population by 2050, compared to the turn of the 21st century. Corresponding to the rise in population, the water demand is expected to increase rapidly in the region, where water scarcity is already a major concern. According to the World Bank, the MENA region has the greatest expected economic loss from water shortages, estimated at 6%–14% of its GDP by 2050. PROTECTING THE REGION’S WATER SUPPLY NETWORKS WITH ROBUST & RELIABLE PRODUCTS FROM THE ALIAXIS GROUP An in-depth look into how FRIATEC’s range of electrofusion fi ttings and STRAUB’s mechanical couplings are key to ensuring the safety and security of the region’s pipelines This shows that while there is a real need for more desalination plants to increase water production and meet the needs of the growing population in the region, there is also a great need to improve current water supply networks to ensure that the water produced reaches the end-user, lowering non-revenue water losses. Therefore, having the right solutions to support the development of desalination projects is key. Global leader in the manufacturing and distribution of advanced plastic piping systems Aliaxis – which caters to the building, infrastructure, industrial, utility, and agricultural applications – provides a broad range of solutions for essential, large-scale projects that touch our daily lives. May 2021 | MEP Middle East 37 www.mepmiddleeast.com WATER SECURITY For instance, FRIATEC – which offers solutions for the connection of pipelines in water supply, sewage and wastewater, gas supply, and industrial applications – is vitally important in this regard, ensuring that the joints in a pressure pipeline are well-made in order to provide a robust and reliable solution for the life of the system. FRIATEC offers a range of electrofusion fi ttings that have been engineered to provide the highest quality joints for polyethylene pipes, creating a fully homogenous system that network operators can depend on. In addition, the fi rm’s world-leading patented electrofusion systems have been used in projects all around the world. These innovative electrofusion products are made in Germany and include many unique features, which are designed to improve the speed of installation, without compromising on quality and longevity. The design of Frialen electrofusion fi ttings incorporates exposed heating coils to provide consistent heat transfer during fusion and achieves maximum bonding between the materials. Moreover, The Frialen range of electrofusion couplers have been designed specifi cally to overcome the three major causes of electrofusion joint failure: contamination, ovality, and misalignment. By maintaining close contact with its customers all over the world, the fi rm uncovers real-world installation challenges, and develops solutions for easier installation and improved reliability in service. Through continuous innovation, the fi rm has developed some of the most unique electrofusion solutions in the world – from its bi-fi lament couplers that allow one side of the coupler to be fused at a time, to the conical-ring couplers and vacuum saddles that address installation challenges better than all other fi ttings. Furthermore, to modernise the existing water supply networks in the region, mechanical couplings are essential. STRAUB solutions are ideal for these applications as they not only aid in fi xing leaks and supporting the modifi cation of existing pipework, they are also crucial for all types of pipe material to be connected. With more than 50 years of experience in the fi eld, the STRAUB range of products WWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWAAAAAAATTTTTTTTTTTTTTTTTTTEEEEEEEEEEEEEEEEERRRRRRRRRRRRR SSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEECCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUURRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRIIIIIIIIIIIITTTTTTTTTTTTTTTTTTYYYYYYYYYYYYYYYYYYYYYYYYY offer a simple means of mechanically joining plain-end pipes in any material, including metal or plastic. This reliable solution offers stress-free, fl exible pipe joints, compensates axial movements and angular defl ection, and provides pressure-resistant and leak-proof offerings. The repair couplings provide effi cient pipe damage control in a variety of piping systems, including those under pressure without service interruptions, which is extremely important when it comes to water supply networks. The benefi ts of theses mechanical coupling include simple and rapid installation thanks to its pre-assembled design. They can even be used on plain-end pipes without the need for costly pipe-end preparation or the need for specifi c tools for pipe preparation. Finally, the products are much more lightweight compared to traditional methods such as fl anges, and their compact design makes them perfect for space-saving installation pipes.38 MEP Middle East | May 2021 www.mepmiddleeast.com LETÊS TALK MEP The process of manufacturing and assembling the components of a building or a construction project off-site before transporting them to the construction site for fi nal installation and commissioning – also known as prefabrication – is not particularly new to the global MEP industry. Although there seem to be certain obvious benefi ts – in terms of reduction in construction wastage; fewer boots on-site; resultant cost- and time-benefi ts; safer and more controlled working environments for plumbers, electricians, and HVAC technicians, among others – there still seems to be a lot of resistance to the adoption of this technology at scale in the Middle East region. Some experts in the industry have pointed to the quality of prefabricated components such as pre-insulated AC and piping ducts, pre-fabricated MEP modules, and fully integrated assemblies as a clear and obvious reason for the industry to move in this direction, while other experts believe that such a move is only realistic with a stronger regulatory approach. As part of its ongoing Let’s Talk MEP series, MEP Middle East spoke to fi ve key industry stakeholders – including Rejil Kumar, the general manager at WML (a Voltas subsidiary); Thomas Main, the project manager at ALEMCO; Mohammad ElTaha, the operations director at ETTS; Marina Kindelan, the associate façade consultant at AESG; and Avinash Kumar, the associate partner at GAJ – all of whom are pushing the envelope for prefabrication in the industry. Commenting on why prefabrication is not being adopted more at scale in the MEP industry, WML’s Rejil Kumar says: “Despite the fact that we’ve been evangelising about prefabrication for the past fi ve to six years – by talking to contractors and consultants alike – we’ve seen a mixed result across the industry. There are three reasons, according to me, why this is not being adopted at a higher rate: the transient nature of projects; the age-old processes that have become the skeleton of the industry; and the conventional culture that’s spread across the entire supply chain on the project.” Unlike other industries, the MEP sector sees people and teams working together for short-lived periods of time, and often under cost- and time-based pressures. A lot of focus is placed on fi nishing the job rather than on how to collaborate and improve the overall quality of what’s being done. Rejil explains: “When stakeholders enter a project, they tend to be driven by contracts and deadlines, and often, there’s a lot of chaos. This doesn’t lend itself to PREFABRICATION: The time has come to UNLEARN and RELEARN Top stakeholders pushing the envelope for MEP prefabrication in the Middle East construction industry point to its numerous benefits – including cost and time efficiencies – while addressing the need to move past antiquated mindsets, models, and methods of construction by MEP Middle East editor Anup OommenMay 2021 | MEP Middle East 39 www.mepmiddleeast.com LETÊS TALK MEP driving effi ciencies because there’s always someone higher up the supply chain pushing for the work to be completed within the extremely tight deadlines. As a result, the focus shifts to getting the project over the line. This demonstrates the impact of the transient nature of construction projects” “Secondly, the current processes within the MEP industry have been practiced for years, and it’s hard to change the way things are done. If the industry needs to consider prefabrication, it will mean developing the ability to think laterally, and being open to processes that are different – right from the beginning – at the early stages of design, how the project is planned, how the contracts are packaged, and even how the contracts are monitored and certifi ed.” Another aspect holding the industry back from adopting innovative practices like prefabrication is the “siloed” nature of workfl ow, where stakeholders focus only on their contribution to the project without considering the overall lifecycle of the project. “There is an inherent need to change the conventional culture across the entire supply chain on a project. For example, when you have separate discipline heads for mechanical, civil, MEP, and HVAC on a project, there is a structure that propagates the culture of thinking in siloes. Prefabrication forces people to reimagine this process – and brings all these different disciplines to work together in the same space,” Rejil adds. Therefore, for prefabrication to be understood and adopted at scale, the MEP industry will need to re-introduce a learning mindset. For instance, there are many stakeholders who still need to learn how to disassociate the benefi ts of prefabrication from the idea of “value engineering” and cost-cutting. The operations director at ETTS, Mohammad ElTaha, explains: “When pre- fabrication is introduced to clients as a technology adoption that saves time and reduces manpower on-site, there is an incorrect expectation that this should, in turn, also result in an immediate reduction in cost – similar to value engineering practices in the industry. “In addition, the lack of knowledge about prefabrication – even after more than fi ve years of adoption – means that stakeholders still don’t understand how modules constructed off-site will be fi xed inside buildings; how the MEP systems are going to be accessed; and how the MEP systems are going to be connected.” To tackle the issue, a number of contractors have decided to create awareness through fully-constructed prefabricated fl oors as “show models” – complete with prefabricated ductwork, pipework, electrical connections, wiring, fan coil units, and more – that stakeholders can walk through and see for themselves, to understand the benefi ts of prefabrication “We have to continue propagating this re-learning mindset so that stakeholders can actually visualise the benefi ts of prefabrication rather than making it feel like they’re taking a risk on a new and un- tested technology.” The benefi ts of prefabrication in the MEP industry also need to be understood in terms of its impact on designing, sequencing, and packaging on the project. Avinash Kumar, the associate partner at GAJ, who actively works alongside MEP contractors on a project right from the concept design all the way to the handover of the project, says: “When a project is being implemented in the conventional manner, without prefabrication, quite often there is chaos on-site when it comes to the MEP stage. There are usually people painting the walls, while there are others putting in the MEP hangers and fi xtures. Due to the time overruns, work that ought to be happening in sequence – one after the other – are often happening in parallel – at the same time.” Rejil Kumar General Manager at WML (a Voltas subsidiary) Thomas Main Project Manager at ALEMCONext >