When it comes to building construction, quality is one of the most crucial aspects. To ensure that buildings meet high-quality standards, Malaysia uses a system known as QLASSIC (Quality Assessment System in Construction). This article provides an in-depth understanding of QLASSIC, how it is applied, and the key components that are assessed. We will also explore sample flowcharts and tables used in this system to give you a comprehensive view of the process.
What is QLASSIC?
QLASSIC stands for the Quality Assessment System in Construction, a system introduced by the Construction Industry Development Board Malaysia (CIDB) to assess and evaluate the quality of workmanship in building projects based on established standards. This system helps ensure that every aspect of construction meets the required standards, from architectural work to mechanical and electrical (M&E) installations, as well as external works.
Objectives of QLASSIC
QLASSIC is designed to achieve several key objectives:
- Establish a Standard Assessment System: To create a standardized system for assessing the quality of workmanship in building construction.
- Evaluate Workmanship Quality: To evaluate the quality of workmanship carried out by contractors.
- Assess Contractor Performance: To assess contractor performance based on the quality of their work.
- Set Quality Benchmarks: To set quality benchmarks within the construction industry in Malaysia.
- Compile Data for Statistical Analysis: To gather data on construction quality for statistical analysis(CIS7 2021).
Components of QLASSIC Assessment
QLASSIC assesses the quality of building construction work based on several key components:
- Architectural Works: This involves the assessment of internal finishes, external finishes, and material and functional tests.
- Mechanical and Electrical (M&E) Installations: This assesses the quality of basic M&E fittings such as switches, lights, and sanitary fixtures.
- External Works: This includes elements like external infrastructure, amenities such as playgrounds, and swimming pools.
QLASSIC Scoring and Weightage System
Each building category is given a different weightage based on the components of the construction works. Below is the weightage table for different components of building construction according to building categories:
Table 1: Allocation of Weightage for Components of Building Construction Works
| Component | Residential Building | Non-Residential Building |
|---|---|---|
| Category A (Landed Housing) | Category B (Stratified Housing) | |
| Architectural Works | 85% | 83% |
| Basic M&E Fittings | 2% | 3% |
| External Works | 13% | 14% |
| Total Score | 100% | 100% |
Assessment of Architectural Works
The assessment of architectural works is conducted after the completion of the building project and before the handover. The weightage for architectural elements is as follows:
Table 2: Weightage for Architectural Elements
| Architectural Elements | Weightage (%) |
|---|---|
| Internal Finishes | |
| Floor | 18% |
| Internal Wall | 18% |
| Ceiling | 8% |
| Door | 8% |
| Window | 8% |
| Internal Fixtures | 8% |
| External Finishes | |
| Roof | 10% |
| External Wall | 10% |
| Apron and Perimeter Drain | 3% |
| Car Park/Car Porch | 3% |
| Material and Functional Test | 6% |
| Skim Coat or Prepacked Plaster | 3% |
| Wet Area Water-Tightness Test | 3% |
| Total | 100% |
Sampling Guidelines for Architectural Works Assessment
Sampling is essential to ensure that the assessment adequately represents the entire construction project. Below is the sampling guideline for architectural works:
Table 3: Sampling Guidelines for Architectural Works
| Sub-components/Elements | GFA per Sample | Min Sample | Max Sample |
|---|---|---|---|
| Internal Finishes | 70 m² | 30 | 700 |
| External Finishes | – | – | – |
| Roof | – | – | 50% blocks/units |
| External Wall | – | – | – |
| Apron and Perimeter Drain | – | 2 | – |
| Car Park/Car Porch | – | – | 10 m length per car park floor |
| Material and Functional Test | – | – | – |
Flowchart for QLASSIC Assessment Process
To simplify the understanding of the QLASSIC assessment process, here is a suggested flowchart:
- Initiation Phase:
- The project owner contacts a QLASSIC assessor.
- A QLASSIC assessor is appointed by CIDB to carry out the assessment.
- Preparation and Planning:
- The assessor prepares the assessment plan based on established guidelines.
- The scope of assessment and areas to be evaluated are determined.
- Sampling and Site Inspection:
- Sampling is carried out according to the sampling guidelines.
- The assessor conducts on-site inspections to evaluate the construction work.
- Quality Assessment:
- The quality assessment is conducted for the designated components.
- The assessment includes architectural works, M&E installations, and external works.
- Report Preparation:
- A report is prepared based on the assessment results.
- The report includes the assessment scores and recommendations for corrective actions if necessary.
- Submission and Follow-Up:
- The final report is submitted to the relevant parties.
- Follow-up actions are taken if there are issues that need to be addressed.
Conclusion: The Importance of QLASSIC in the Construction Industry
QLASSIC is an essential system that helps ensure the quality of construction work in Malaysia meets the established standards. By using this system, project owners and contractors can assess and improve the quality of their work, thereby enhancing the safety and comfort of building occupants. Be sure to engage certified assessors and follow the guidelines to ensure a smooth assessment process.
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