Portman - Building Services Engineering

1. Chapter 02
2. Chapter 03
3. Chapter 07

1. Introduction
2. Part 01
3. Chapter 01
4. Chapter 02
5. Chapter 03
6. Chapter 04
7. Chapter 05
8. Part 02
9. Chapter 06
10. Chapter 07
11. Chapter 08
12. Chapter 09
13. Chapter 10
14. Chapter 11
15. Chapter 12

Jackie Portman

This edition first published 2016
2016 by John Wiley & Sons, Ltd

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Library of Congress Cataloging-in-Publication Data

Names: Portman, Jackie, author.
Title: Building services engineering : after design, during construction / Jackie Portman.
Description: Chichester, UK ; Hoboken, NJ : John Wiley & Sons, 2016. | Includes index.
Identifiers: LCCN 2016002915 (print) | LCCN 2016008365 (ebook) | ISBN 9781119035961 (pbk.) | ISBN 9781119035978 (pdf) | ISBN 9781119035985 (epub)
Subjects: LCSH: BuildingSuperintendence. | Construction industryManagement. | Building management.
Classification: LCC TH438 .P6763 2016 (print) | LCC TH438 (ebook) | DDC 690.068dc23
LC record available at http://lccn.loc.gov/2016002915

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Cover image: Getty Images PASIEKA

The purpose of building services engineering systems is to provide a safe environment that is comfortable for building occupants and/or suitable for any processes happening within buildings: their remit may also extend to areas outside buildings in places where a controlled environment is required. I have come across very many situations where a finished building does not perform as building services engineers had intended: there is a performance gap; for example, the end users are not comfortable in their environment, the building operator is not happy with the maintainability, flexibility or energy consumption of the finished building, or the building does not satisfactorily support the processes happening within. In a worst case scenario, a completed building may fail to comply with the requirements of an enforcing authority such that the building cannot be occupied and used.

Despite improvements in design procurement methods that encourage more, and earlier, involvement of construction personnel and the advancement of Building Information Management (BIM) as a tool for collaborative working, suboptimal design solutions and a lack of constructability may only become apparent once the construction works start. The consequences of rectifying these go beyond the reworking of the design, extending in some cases to a knock-on effect on interfacing, programme delays and cost overruns, an increase in claims and disputes and, at the end of the process, higher maintenance costs, which are ultimately borne by clients commissioning the building. This situation can reflect badly on building services engineers capability and competency. At best, on a personal level, such criticisms can be mildly disheartening; at worst, they can involve building services engineers in litigation processes, with all the associated disruption, costs and potential effects on reputation. In the middle, they may have to endure requests for call-backs, investigations, revisiting of the basis of design documentation this may be during construction, at handover or initial occupancy, or may be years later. Whatever the circumstances, such distractions are irritating and are all at a cost and time to individuals and business organisations.

Furthermore, some of the original design information is included in the documentation handed over at completion of a building. This needs to be reliable, accurate and in a suitable format for the lifetime, and ultimate decommissioning and disposal, of a building. Operators and occupiers of a building need to understand the expected design performance so as to help with operation and maintenance. Likewise, any decision-making processes of organisations with respect to capital planning (new construction and renovation) programmes may depend on original design; for example, allowances for extending systems for additional electrical power, humidity control, more building management system (BMS) functionality, drainage capacity and so on.

Construction is a multifarious process, with the focus changing as the project progresses. After the design team has completed the bulk of its work, the construction cohort takes the lead; however, building services engineers have strong incentives to support the continuity, quality, and intent of the design. By being properly involved they can better manage and limit the potential risks, such as defects and client complaints, and achieve recognition for the quality of their design work.

This book aims to give practical and relevant information to those involved with the design of building services engineering systems. In particular, it recognises the idiosyncrasies and distinct features of building services engineering that are not specifically covered in general texts on construction management issues. This book follows on from Building Services Design Management (Portman, 2014), which recognises the particular planning and management techniques to progress the design of the building services engineering system to ensure that the design deliverables are suitable for onward use in the construction phase. The intended audience includes: