High-rise team

Rob Melk

Group Vice - President High-Rise Building Solutions

Country/region: The Netherlands

As Group VP for High-Rise Building Solutions, the focus for Rob Melk is addressing the plumbing engineering challenges that are the result of the height of tall buildings, with the goal of making plumbing systems for high-rise buildings more innovative and efficient.

His experience and expertise in specialist drainage systems (single stack DWV, siphonic roof drainage) has helped him to succeed in previous roles as Business Development Manager, Managing Director, and Regional VP. Some of the most impactful projects that he has been involved with have been in the EMEA region and Asia Pacific.

Rob Melk

Group Vice-President
High-Rise Building Solutions

+31 653 864 958

Bas Nolta

Global Business Development Manager High-Rise Drainage Solutions

Country/region: The Netherlands

With 10 years’ of experience in plastic pipe sytems, Bas Nolta has worked on projects all over the globe. His areas of expertise include single stack DWV, acoustic DWV and siphonic roof drainage within Aliaxis, as well as fire safety. He has served as product manager for HDPE, dBlue, single stack, and siphonic solutions.

In his career, Bas has focused on the unique challenges of high-rise buildings, where all the functionalities of drainage come together with higher demands.

Bas Nolta

Global Business Development Manager (Drainage)

High-Rise Building Solutions

+31 611 645 806

Eliana Gomez

Global Strategy Manager - High-Rise Building Solutions

Country/region: Belgium

As Strategy Manager for Aliaxis on the corporate level, Eliana Gomez steers the strategic development of Aliaxis’ portfolio of products and services for high-rise buildings, and manages related projects including development of the Aliaxis high-rise buildings website and technical platform.

Eliana her domain of expertise is strategy and marketing. She meets with specifiers and developers around the world to understand their needs and the challenges they face on a day-to-day basis, and the knowledge she gains through this interaction helps shape direction for the technical platform as well as solutions development.

Her focus is on the development of value-engineered solutions adapted to high-rise buildings, contributing to making high-rises feasible, comfortable, safe, green, and affordable.

Eliana Gomez

Global Strategy Manager
High-Rise Building Solutions

+32 478 99 93 65

Erik Douma

Regional Business Development Manager (Asia Pacific) - High-Rise Building Solutions

Erik Douma

Regional Business Development Manager (Asia Pacific)
High-Rise Building Solutions

+31 653 85 59 37

Daniel Rath

Regional Business Development Manager (EMEA & LATAM) - High-Rise Building Solutions

Country/region: UK

Daniel Rath, Regional Business Development Manager (EMEA & LATAM) , has 12 years’ involvement in building drainage, specifically with regards to the ventilation systems, with direct exposure to all stakeholders, from the design concept to the installation stages, covering both technical and commercial aspects.

In his role as Head of Technical Sales DWV High-Rise Building Solutions, he has been responsible for managing European markets, and for developing new markets in Latin America, South America, North Africa and in the Middle East. His specific expertise lies in international business development, and specification project management.

Daniel has worked on projects in more than 50 countries. Highlights include the Hub Hotel in Milano, Italy; the Caja Magica multipurpose stadium in Madrid, Spain; and the Sapphire Tower in Istanbul, turkey, the tallest European residential tower at that time. He has also played an important role in projects at numerous hospitals, ensuring the highest levels of system performance, in line with all cross contamination regulations and protocols.

Daniel Rath

Regional Business Development Manager (EMEA & LATAM)
High-Rise Building Solutions

+44 780 342 80 89

Marc Buitenhuis

Research Engineer Fluid Dynamics - High-Rise Building Solutions

Country/region: The Netherlands

Marc Buitenhuis joined Akatherm (part of Aliaxis) in 2007 as a research engineer. Over the last 10 years, Marc has been instrumental in setting up and driving calculations and testing water drainage systems of large buildings and the components in these systems.

Marc drove the construction and design of the Hydro Dynamic Experience Centre (HDEC) where he now spends most of his time, working on product testing and supporting customer visits. He was also involved in the development of the Akasison® XL75 roof outlet and the Chutunic® High-rise System.

Marc has given numerous technical presentations at key international platforms including CIB, and works with worldwide standards bodies and committees on the establishment and updating of building and product standards across the globe. He has published several papers in technical literature on these subjects.

Marc Buitenhuis

Research Engineer Fluid Dynamics
High-Rise Building Solutions

+31 773 088 618

Ai Ling Chan

Technical Marketing Manager & Regional High-Rise Growth Platform Manager

Country/region: Malaysia / South-East Asia

With more than 20 years’ experience in the plastic piping industries, Ai Ling Chan is a seasoned expert in drainage and pressure for buildings. As Technical Marketing Manager & Regional High-Rise Growth Platform Manager at Aliaxis, she supports sales with specifications for water supply, soil, waste & vent (SWV), as well as rainwater drainage design, application and installation.

Ai Ling also provides technical support in drainage capacity calculation and advice on best practices in designing the piping layout to ensure that it is hydraulically efficient and reliable. She serves as an internal trainer on product application and the technical aspects of design and installation, provides technical support to customers, and develops, maintains and updates presentation slides, product specifications, technical manuals and relevant marketing tools for the sales team.

In this role for the past two years, Ai Ling has supported a range of projects in Malaysia and Vietnam, and continues to explore new technology, products and applications to meet the demanding construction technology and building practices.

Ai Ling Chan

Technical Marketing Manager
& Regional High-Rise Growth Platform Manager (South East Asia)

+60 123 208 068

Michael Chang

Technical Services Engineer DWV High-Rise Building Solutions

Country/region: UK

In his role as Technical Services Engineer DWV High-Rise Building Solutions, Michael Chang specialises in CAD applications, drainage ventilation and product and system development. His experience includes above ground drainage system design, cost-effective drainage systems for residential/commercial applications, mixed-use complex, sealed system, as well as product development and global technical support.

For Michael, career highlights to date include working on the drainage development team for a sealed system for the O2 Arena in London, his work for Ferrari World Abu Dhabi, and saving over 40 km of pipework on a single hotel project in Panama.

In addition, the drainage airflow calculation spread sheet that Michael created for his own use in a technical report is now available as a stand-alone app for iOS and Android mobiles, as well as on the Studor website.

Michael Chang

Technical Services Engineer DWV
High-Rise Building Solutions

+44 845 601 32 92

Praveen Kumar

Deputy Manager Product Management & Regional High-Rise Growth Platform Manager

Country/region: India

As Deputy Manager-Product Management for Ashirvad, Praveen Kumar provides new products and solutions to the growing high-rise buildings market in India, contributing to the improvement of plumbing systems across the country.

Praveen has more than seven years’ experience in the high-rise building market. His experience includes product development, design, Bill of Quantities (BOQ) preparation, installation support and installation inspection, and technical meetings/presentations to the community of builders, architects and consultants.

Ashirvad, India’s local solutions provider, leverages the worldwide expertise and product portfolio of Aliaxis, offering a high-quality one-stop solution to customers.

Praveen Kumar

Deputy Manager Product Management
Regional High-Rise Growth Platform Manager (India)

+91 702 226 43 43

Tony Hill

Technical Support Engineer DWV High-Rise Building Solutions

Country/region: UK / South-East Asia

Tony Hill, is an expert in drainage ventilation, and has been involved in drainage ventilation in high-rise and complex buildings since 2010. Tony also has extensive experience in on-site installation and repair for drainage systems.

Thanks to this strong background in site installation and expertise in drainage, Tony is able to quickly find solutions that work for all parties with minimal disruption to the build program and costs when any problems occur on site due to layout changes.
His understanding of how different building drainage systems react, and ability to transfer this information to clients, consultants, developers and contractors, make him an invaluable member of the design and installation team.

Tony’s focus for the last few years has been the UK high-rise market. Before that he was involved with the South-East Asia region of the business; now with growth expanding in this area, he will help to lead Aliaxis’ South-East Asia region while keeping his UK projects on track.

Tony Hill

Technical Support Engineer DWV
High-Rise Building Solutions

+44 782 655 31 01

Darin Johnson

Product Manager AquaRise Potable Water Piping Systems & Regional High-Rise Growth Platform Manager

Country/region: Canada

As Regional High-Rise Growth Platform Manager, Darin Johnson’s primary focus is supporting the growth and development of the AquaRise product line. He works closely with the Sales, Marketing, and Innovation groups to develop and implement growth strategies, leading cross-functional teams to add product line extensions.

He also maintains technical literature, addresses customer inquiries, maintains up-to-date certification listings, and provides support to sales and customer service teams.Darin draws on the extensive experience gained through his previous role as Applications Engineer, providing support for IPEX’s US Industrial, Mechanical, and Plumbing business.

Since joining IPEX, he has provided technical expertise for piping systems in the commercial, industrial, and municipal sectors. Darin has over nine years of experience in thermoplastic piping system design, installation, and applications.

Darin Johnson

Product Manager AquaRise Potable Water Piping Systems
& Regional High-Rise Growth Platform Manager (NA)

+1 289 881 0120 x21269

Anish KN

Technical Services Engineer DWV - High-Rise Building Solutions

Country/region: UAE

Anish KN is focused on building drainage systems. He designs the ventilation component of building drainage systems, and for certain projects designs the entire drainage system to support consultants and contractors. Anish’s role also involves participating in consultant meetings, site inspections, and providing on-site training on product installations and the importance of proper drainage ventilation.

Over the course of his 16 years’ experience in the Middle East MEP field and more than 10 years’ experience in high-rise building design, mainly in drainage systems, Anish has designed drainage ventilation systems for more than 500 buildings, ranging from 1 floor to 122 floors (with more than 100 high-rise buildings).

He has been involved in high-rise building projects across multiple countries, including the UK, Australia, Italy, Panama, Portugal, Colombia, Vietnam, Libya, Indonesia, Thailand, Philippines, Japan, China, India, UAE, Qatar, and Kuwait.

Key projects include the design and execution of MEP services in the world’s biggest shopping mall, The Dubai Mall, and design for the D1 Tower, an 80-storey luxury residential building in Dubai, UAE. For the D1 Tower, Anish redesigned the conventional three pipe drainage system to the Studor P.A.P.A. (Positive Air Pressure Attenuator) drainage system, enabling a savings of 30% in total drainage system cost.

Anish KN

Technical Services Engineer DWV
High-Rise Building Solutions

+971 504 245 107

Marzio Malaguti

Regional High-Rise Growth Platform Manager

Country/region: Costa Rica (LATAM)

In his role as Regional High-Rise Growth Platform Manager, Marzio Malaguti’s focus is on implementing new solutions, new technologies, and new systems in vertical construction, a relatively new market for Latin America. He brings significant expertise in fire safety to this position, thanks to the vast number of kilometres of fire-fighting pipe he has installed.

He has comprehensive experience in design and installation of piping, gained through his many years of participating in the construction of power generation plants and oil and gas plants, working with fuel transport systems, fire-fighting systems, cooling systems, steam systems, compressed air systems, water supply systems, and others.

Geographically, Marzio’s projects have covered many countries in South America and Central America, where he worked both in an office generating engineering, and in the field supervising and coordinating construction. Standout projects for Marzio include the Pecem Siderurgica Plant in Brazil, the LPG distribution system for the Southern Zone of Ecuador, and the Garabito Thermoelectric Generation Plant in Costa Rica.

Marzio Malaguti

Regional High-Rise Growth Platform Manager (LATAM)

+506 252 706 10

Steve White

Technical Director DWV High-Rise Building Solutions

Country/region: UK

Involved in drainage ventilation for high-rise buildings for 16 years, Steve White has contributed his efforts and expertise to thousands of projects all over the world. As a Technical Director DWV HighRise Building Solutions, he works with research institutions and manufacturers developing products, to meet the requirements for high-rise drainage ventilation and to validate these technologies, presenting them to the market through bodies such as the WPC, CIBSE, ASPE and CIB W062. Highlight projects for Steve include the Trump Tower in Panama, where his team managed to save over 40 km of pipework. Another standout project was the O2 Arena in London; although not a high-rise in height, in drainage venting terms it is equivalent to a 60-storey building. The team managed to do this as the world’s first sealed vented system (no roof penetrations), and to date over 8.8 million people have used the bathrooms without any issues. Steve is focused on educating and supporting the high-rise industry, helping to provide safe drainage systems and the innovations that enable high-rise living.

Steve White

Technical Director DWV
High-Rise Building Solutions

+44 778 099 75 98

Paul Coffey

Regional High-Rise Growth Platform Manager

Country/region: Australia

Paul Coffey joined Philmac, now part of Vinidex (Aliaxis’ Australian business) as business development manager for the commercial plumbing range, namely Akatherm HDPE (including single-stack solutions) and dBlue (acoustic solutions). His area of expertise is drainage in PE & PP – both S&W and commercial trade waste.
Focusing on the commercial market (including high-rise) for many years, Paul has been involved in a wide range of projects, including hospitals, hotels, apartments, shopping plazas, and more.
Since 2016, Paul has been High-Rise Building Lead for the Australia region, where he manages high-rise projects as well as product and services development for the Australian market. A job highlight for Paul: watching vacant blocks of land transform into state-of-the-art high-rise structures.

Paul Coffey

Regional High-Rise Growth
Platform Manager (Australia)

+61 408 515 462