Maintainability Scoring System (MSS)
Click on each component button below to view an explanation of the rationale behind the scoring :
Components
Click on the “COMASS Calculator” button below to compute the score for each component and/or the entire building/facility :
Calculator
Objective
Building maintainability is a widely known concept that refers to achieving optimal performance throughout a facility’s lifespan with the least life cycle cost. It involves using building maintenance knowledge during the building design stages to ensure that building systems are able to be effectively and efficiently maintained without any compromises in terms of the ease of maintenance
The objective of MSS is to promote more maintainable buildings to the industry through assessment of various contributing factors for the maintainability of buildings. This is a novel attempt to improve the performance of buildings and reduce the life cycle cost (LCC) during its post occupancy period.
Assessment Approach
Building maintainability is a composite of many factors and requires critical decision making which involves the optimum selection of building elements that required minimum cleaning, repair and replacement. In general, this is not a straightforward task given:
- the large number of materials and variety of systems and designs
- variability of the performance
- difference in the risk of failures associated with different systems and components
Building maintainability is hence a composite of many factors. It may be modelled in various forms one of which is LCC, in which case, the optimum maintainability that is the optimum LCC can be set at the minimum level of risk as shown in the figure above.
Therefore, the maintainability scoring system is a rational benchmark to assist in the selection of highly maintainable building designs to improve the performance of buildings and reduce the life cycle cost during its post occupancy period.
Click on each component button below to view an explanation of the rationale behind the scoring :
Components
Click on the “COMASS Calculator” button below to compute the score for each component and/or the entire building/facility :