10. COMMON DEFECTS AND REMEDIES
              Designers, contractors and site supervisory staff should understand the common defects and their related 
              causes to prevent them. It is also essential to use some recommended details to better manage the defects 
              and implement necessary remedial actions. Figure 10.1 shows the common defects, possible causes and 
              their remedial actions.
              Figure 10.1   Common Defects, Possible Causes and Recommendations
                   Common Defects /                      Possible Causes                     Recommendations
                       Bad Practices
                 10.1.1 Cut pieces                   •	 Insufficient planning of         •	 Plasterboard must be cut 
                                                         layout                              according to shop drawing
                                                     •	 Late delivery of material        •	 Allow tolerable gap for 
                                                                                             flexible sealant
                 10.1.2 Stud cutting for switch      •	 Insufficient planning            •	 Stud placement must be 
                 casing installation                                                         according to shop drawing 
                                                     •	 Last minute changes                  (inclusive of M&E services 
                                                     •	 Insufficient training                layout)
                                                                                         •	 Stud realigned to 
                                                                                             avoid switch casing or 
                                                                                             alternatively, additional stud 
                                                                                             is required
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             COMMON DEFECTS AND REMEDIES   
                   Common Defects /                     Possible Causes                     Recommendations
                      Bad Practices
                 10.1.3 Poor cutting of            •	 No provision of right tools      •	 Panel must be cut according 
                 plasterboard                                                             to shop drawing
                                                   •	 Insufficient training            •	 Over cut / slanting / Rough 
                                                                                          cut  is not allowed
                 10.1.4 Missing timber stiffener   •	 Insufficient planning           •	  Timber (1x2 or 2x2) as 
                                                   •	 Insufficient training               stiffener
                                                                                      •	  Alternatively, it has to be 
                                                                                          double studs to form boxed 
                                                                                          at door jamb 
                 10.1.5 Gaps between different     •	 Insufficient planning            •	 All gaps are to be sealed 
                 materials                                                                using Fire Rated Sealant or 
                 •	 No gap allowed                 •	 Insufficient training               relevant sealant
                 •	 Gap was filled by mortar       •	 Lack of supervision
                    filling instead of flexible 
                    sealant. 
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                                                                                     COMMON DEFECTS AND REMEDIES   
                    Common Defects /                      Possible Causes                      Recommendations
                       Bad Practices
                 10.1.6 Gaps between                 •	 Insufficient training             •	 Joints must be tightly butt 
                 plasterboard                                                                tapered end board edge 
                 •	 Joints not tightly butt          •	 Poor workmanship                     joints
                     tapered end board edge 
                     joints
                 10.1.7 Studs not fastened to        •	 Lack of supervision               •	 All Studs and Bracing must 
                 bottom track                                                                be riveted/ screwed 
                                                     •	 Insufficient training
                                                     •	 Poor workmanship
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            COMMON DEFECTS AND REMEDIES   
                  Common Defects /                  Possible Causes                  Recommendations
                     Bad Practices
               10.1.8 M&E Services not          •	 Insufficient planning        •	 All Electrical  Services must 
               within drywall setting out                                          be within drywall setting out
                                                •	 Insufficient training
                                                •	 Poor workmanship
               10.1.9 Small cut pieces          •	 Insufficient planning        •	 Full piece & proper joint. 
               installed and torn board
                                                •	 Insufficient training
                                                •	 Poor workmanship and 
                                                   supervision
               10.1.10 Bottom track cut to      •	 Insufficient planning        •	 Services Holes was created 
               accommodate M&E services                                            without cutting track
                                                •	 Insufficient training
                                                •	 Poor workmanship and 
                                                   supervision
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