A trade-based risk management approach towards the elimination of defects in residential construction

Paper


Abeysekera, Vasantha and Dhakal, Bibek. 2017. "A trade-based risk management approach towards the elimination of defects in residential construction ." Ahmed, Syed M., Azhar , Salman, Smith, Norma A., Campbell, Shaunna C., Russell , Laura and Shah, Attaullah (ed.) 9th International Conference on Construction in the 21st Century (CITC-9) . Dubai, United Arab Emirates 05 - 07 Mar 2017 Greenville, North Carolina, USA.
Paper/Presentation Title

A trade-based risk management approach towards the elimination of defects in residential construction

Presentation TypePaper
AuthorsAbeysekera, Vasantha (Author) and Dhakal, Bibek (Author)
EditorsAhmed, Syed M., Azhar , Salman, Smith, Norma A., Campbell, Shaunna C., Russell , Laura and Shah, Attaullah
Journal or Proceedings TitleProceedings of the 9th International Conference on Construction in the 21st Century (CITC-9)
ERA Conference ID60421
Number of Pages10
Year2017
Place of PublicationGreenville, North Carolina, USA
ISBN9780998752518
Web Address (URL) of Paperhttps://docs.wixstatic.com/ugd/0d72f4_e8d5bd302826...
Conference/Event9th International Conference on Construction in the 21st Century (CITC-9)
International Conference on Construction in the 21st Century
Event Details
9th International Conference on Construction in the 21st Century (CITC-9)
Parent
International Conference on Construction in the 21st Century
Delivery
In person
Event Date
05 to end of 07 Mar 2017
Event Location
Dubai, United Arab Emirates
Event Details
International Conference on Construction in the 21st Century
Abstract

The construction industry seems to have settled down to a level of inefficiency saddled with a culture of handing over buildings with defects with mechanisms for dealing with patent, latent, serial and other defects. While it is important to understand direct and root causes of defects, the key to success lies in implementing strategic solutions in an environment where subcontracting is rampant: Accordingly, this study takes a trade-based risk management approach to identify problematic trades by undertaking a risk assessment. While Queensland Building Construction Commission’s top ten defects provide an indication of what such trades may be, this study argues that it fails to provide a comprehensive overview of the defects regime related to single and two-storey houses, therefore, this study focusses on all 34 trades that requires a license to practice. Trades that are high risk, moderately high risk, and moderately risky have been identified through an on-line questionnaire survey sent to approximately 500 respondents which seek information on the likelihood and the impact of defects for each licensed trade including reasons for high risks. The scores received are translated to risk levels and multiplied together to arrive an overall risk score which is classified into high, moderate, and low risk using a risk classification matrix. Accordingly, 14 problematic trades have been identified with Waterproofing being the riskiest trade followed by Swimming Pool Construction and Concreting. The study emphasises the value of this approach to practitioners and regulators to develop strategies for ensuring buildings are defect free.

Keywordsdefects, risk, trade, root causes, management and regulatory strategies
ANZSRC Field of Research 2020330202. Building construction management and project planning
Public Notes

Copyright © 2017 by CITC-9, Greenville, North Carolina, USA. All rights reserved. No part of this book may be reproduced in any form or by any means without written permission from the editors.

Byline AffiliationsSchool of Civil Engineering and Surveying
Institution of OriginUniversity of Southern Queensland
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