A systematic methodology for design of retrofit actions with longevity

This article presents a method for the design of retrofit actions with focus on energy savings that permits a systematic and thorough assessment of potential failures, anticipated maintenance and the expected durability of the retrofit actions. The proposed method combines the use of failure mode and effect analysis (FMEA) to permit identifying likely failure modes from which maintenance actions could be planned and the limit states (LS) method to assess the durability of the given retrofit action. One case study was completed to illustrate the application of: (1) the FMEA and LS method and (2) the proposed method for a retrofit action of an internal insulated solid wall of masonry bonded with lightweight aggregate concrete and floor division of concrete. It was evident that FMEA is useful regarding failure-mode identification and maintenance planning, and the LS method has its strength in durability assessment. Combining the use of both the FMEA and LS methods allowed improved design of new energy-saving retrofit actions, given that a thorough risk assessment was possible that included a decision-making process on maintenance planning, durability assessment and decision on potential redesign of retrofit actions.

[1]  David de la Fuente,et al.  A decision support system for applying failure mode and effects analysis , 2002 .

[2]  Hugo Hens,et al.  Energy savings in retrofitted dwellings: economically viable? , 2005 .

[3]  Paul Fazio,et al.  A limit state design (LSD) approach for comparing relative drying performance of wood-frame envelope , 2011 .

[4]  Dinesh Kumar,et al.  Systematic failure mode effect analysis (FMEA) using fuzzy linguistic modelling , 2005 .

[5]  Staf Roels,et al.  Review of mould prediction models and their influence on mould risk evaluation , 2012 .

[6]  Svend Svendsen,et al.  Method for a component-based economic optimisation in design of whole building renovation versus demolishing and rebuilding , 2014 .

[7]  Hannes Harter,et al.  Life cycle assessment of buildings and city quarters comparing demolition and reconstruction with refurbishment , 2017 .

[8]  Uniben Yao Ayikoe Tettey,et al.  Final energy savings and cost-effectiveness of deep energy renovation of a multi-storey residential building , 2017 .

[9]  Pernilla Johansson,et al.  Critical conditions for onset of mould growth under varying climate conditions , 2010 .

[10]  Jan Carmeliet,et al.  The influence of the wind-blocking effect by a building on its wind-driven rain exposure , 2006 .

[11]  Preston G. Smith.  MANAGING RISK AS PRODUCT DEVELOPMENT SCHEDULES SHRINK , 1999 .

[12]  Warren Gilchrist,et al.  Modelling Failure Modes and Effects Analysis , 1993 .

[13]  H. Viitanen,et al.  Towards modelling of decay risk of wooden materials , 2010, European Journal of Wood and Wood Products.

[14]  Svend Svendsen,et al.  Investigation of interior post-insulated masonry walls with wooden beam ends , 2013 .

[15]  Björn Marteinsson.  Durability and the factor method of ISO 15686-1 , 2003 .