Defect Library Green Building Technologies

This section sets forth the basis of defects and highlight probable sources of the defects. The causes of defects should be determined in order to take the necessary effective measures. Detailed explanations are exemplified with diagrams and figures.
Recommendations of good quality design and construction practices for prevention of defects are given in this section. These would provide sound references and benchmarks for designers and other interested building participants to enhance design detailing and workmanship of all relevant trades. Wherever possible, codes of practices were referred to as the basis of good practices.
For materials to perform well during the building lifespan, they should comply with the various specifications and performance standards within the domain. A list of international standards is provided to create an awareness of the various types of performance criteria to be satisfied to uphold the quality of design and construction.
This link presents effective maintenance practices to keep systems and components in continued performance and offers a range of suitable diagnosis techniques for the detection of defects. Efficient and effective maintenance strategies are necessary to ensure the durability of materials. Diagnosis of defects starts from the observation of an occurred failure or from the acknowledgement of anomalies that indicate the presence of a defect or failure. Diagnostics if correctly applied and supported by adequate tools and instrumentation could achieve effective definition of defects and accurately apply repair methods.
Effective repair methods could resolve defects and prolong the life of the building. However if not correctly applied, defects may worsen and spread over a larger area. This section offers a range of suitable repair methods for the rectification of defects. Interactive video clips are included to provide a visual demonstration of the actual repair work.

Defect Library Building Components

This section sets forth the basis of defects and highlight probable sources of the defects. The causes of defects should be determined in order to take the necessary effective measures. Detailed explanations are exemplified with diagrams and figures.
Recommendations of good quality design and construction practices for prevention of defects are given in this section. These would provide sound references and benchmarks for designers and other interested building participants to enhance design detailing and workmanship of all relevant trades. Wherever possible, codes of practices were referred to as the basis of good practices.
For materials to perform well during the building lifespan, they should comply with the various specifications and performance standards within the domain. A list of international standards is provided to create an awareness of the various types of performance criteria to be satisfied to uphold the quality of design and construction.
This link presents effective maintenance practices to keep systems and components in continued performance and offers a range of suitable diagnosis techniques for the detection of defects. Efficient and effective maintenance strategies are necessary to ensure the durability of materials. Diagnosis of defects starts from the observation of an occurred failure or from the acknowledgement of anomalies that indicate the presence of a defect or failure. Diagnostics if correctly applied and supported by adequate tools and instrumentation could achieve effective definition of defects and accurately apply repair methods.
Effective repair methods could resolve defects and prolong the life of the building. However if not correctly applied, defects may worsen and spread over a larger area. This section offers a range of suitable repair methods for the rectification of defects. Interactive video clips are included to provide a visual demonstration of the actual repair work.

Material Manual

Material manual offers information about building materials used in façade, internal wet areas, basements and roofs. It focuses on the various performances including durability, sustainability and cleanability of materials under tropical conditions as climatic conditions in the tropics are much harsher than those in temperate climate due to the large diurnal temperature range and high relative humidity; the same materials would perform differently in differing climatic conditions.

This guideline will provide a comprehensive reference for the various industry participants (designers, building owners and managers), and will enable them to select appropriate materials that contribute to long-term performance of building throughout its lifetime.

Non-Destructive Tests

A non-destructive test (NDT) is defined as "test conducted to detect internal, surface or concealed defects or laws in materials using techniques that do not cause any damage to the items being tested".

Non-Destructive Test comprises of the following:

  • a search probe to a recognizable change in the medium caused by the test piece
  • a detector which has the ability to recognise the modification if the medium
  • a converter to change the detector's signal into an interpretable form
  • intrepretation of the signal

Maintainability Scoring System

The Maintainability Scoring System (MSS) helps owner to select more maintainable building alternatives for projects. This system seeks to appraise the various factors that could affect long-term maintainability of buildings and provide optimum design solutions for individual building components. The term "maintainability" of buildings may be expressed as "achieving optimum performance throughout the building life span within minimum life cycle cost".

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