QLASSIC SLIDE

QLASSIC
Assessor
Course

Architectural Works │Basic M&E Fittings
│External Works

11

COURSE CONTENTS Course Contents

INTRODUCTION
DEFECT CLASSIFICATION

SAMPLING TECHNIQUES
METHOD OF ASSESSMENT
QLASSIC SCORE

ASSESSOR COURSE SCHEDULE Time Day 01 Day 02
08.45-09.00 am
09.00-10.30 am Introduction Day One Refresher
10.30-11.00 am
11.00-1.00 pm MODULE 1 MODULE 3
Introduction to QLASSIC & CIS 7 Sampling Techniques
01.00-02.00 pm
2.00-3.00 pm MODULE 2 Morning Break
Defects Classification MODULE 4
03.00-03.15 pm Architectural works Method of Assessment
03.15-04.00 pm -Internal Finishes -Correct using of assessment tools

04.00-05.00 pm MODULE 2 (continue) Lunch Break
Defects Classification MODULE 4 (continue)
Architectural works Method of Assessment
-External Finishes -Defect Identification

MODULE 2 (continue) Tea Break
Defects Classification MODULE 4 (continue)
-Basic M&E Fittings Method of Assessment
MODULE 3 (continue) -Defect Identification
Defects Classification MODULE 5
- External works QLASSIC Score Calculation

3

CIS 7 OBJECTIVES: QLASSIC Objectives

• To have a standard quality assessment system for
building construction works.

• To make quality assessment more objective by measuring
completed works against workmanship standards and
specification.

5

LEARNING OBJECTIVES Learning Objectives

Upon completion of this course, the participant will be
able to:
❑impart knowledge on QLASSIC assessment

processes on sampling, site assessment, score
calculation;
❑apply the correct procedure to carry out assessment
in accordance to CIS 7 requirements;
❑use relevant knowledge to identify defects and non-
defects based on the inspection criteria;
❑use measuring techniques with the correct
assessment tools

6

Topic 1:
INTRODUCTION TO
QLASSIC & CIS 7

7

Contents

1

Introduction

2

QLASSIC Objectives

3

QLASSIC Assessment Principle

4 Construction Industry Standard (CIS7)
5

QLASSIC Assessment Process

88

1. Introduction

QLASSIC

Quality Assessment

System In Construction

“A Malaysian Independent quality assessment
tools to measure quality of workmanship for

buildings projects”

9

1. Introduction

When the QLASSIC assessment
will be conducted ?

AW, BM&EF & EW assessment takes
place upon project completion with

Certificate of Practical Completion but
before handing over of project.

10

1. Introduction

❑ QLASSIC is an independent method to assess and
evaluate the workmanship quality of a construction
work based on the relevant approved standard.

❑ QLASSIC enables the quality of workmanship
between construction projects to be objectively
compared through a scoring system.

❑ QLASSIC is only intended to complement:
- project’s contract documents (specifications or
drawings).
- project’s existing QA/QC measures (inspections /
testing / checking).

11

1. Introduction

❑ QLASSIC assessment is made through site
inspections and inspection in accordance with
the principle first time.

❑ Any construction work which corrected after an
assessment is being conducted will not be re-
evaluated.

❑ The objective of this principle is to encourage the
contractor to "Do it right the first time and every
time”

12

2. QLASSIC Objectives

Assess the quality of the workmanship
of a construction project

Establish an industry standard QAS for
quality of workmanship for construction project

Benchmark the acceptable level of quality of
workmanship for construction project

Evaluate the performance of contractors
quality of workmanship against the standard
requirements

Compilation of data for statistical analysis

13

3. Assessment Principles

3rd PARTY ASSESSMENT PRE-DETERMINED &
independent & certified SAMPLING
assessors
calculate sample size based on
guideline.

Assessment
Principles

GUIDED SITE ASSESSMENT 1-TIME ASSESSMENT

follow standards requirement & no re-assessment of works
assessment procedures rectified later to promote “Do it

right the first time and every
time”

1144

4. Construction Industry Standard

4.1 Introduction

1. This standard specifies requirements
(acceptable standard) on quality of
workmanship and assessment procedures
for building construction work.

2. This standard is expected to reduce
contentious disputes between architects,
engineers, clients and builders with regard
on what constitutes acceptable quality as
well to ensure that the interest of the public is
safeguard.

15

4. Construction Industry Standard

4.1 Introduction (continue)

4.The requirements specified in this standard are:
- Procedures to conduct assessment.
- Quality standards (workmanship standard,
tolerance and assessment tool).

5.This standard does not cover assessment on:
- Piling, foundation and sub-structure.

6.This standard contain requirements on the following

building works component:

a) Architectural works c) External works

b) Structural works d) M&E works

Noted: For time being, CIDB conduct assessment on Architectural Works,
External Works and Basic M&E Works only.

16

4. Construction Industry Standard

4.2 Objective Of Assessment

QLASSIC was designed & developed to enable the user to
achieve any or combination of the following objectives:

❑ To benchmark the level of quality of the construction
industry;

❑ To establish a standard and a system to assess
construction quality;

❑ To establish as a KPI to assess the quality performance
of contractors and

❑ To compile and analyze data for Continuous Quality
Improvement (CQI).

17

4. Construction Industry Standard

4.3 Scope Of Assessment

1. Generally assessment is on the workmanship
quality specified in CIS 7 for building construction
work assessment.

2. Basically Construction Industry Standard (CIS 7)
covers on workmanship quality requirements for
building works. Requirement CIS 7 does not take
into account:
- material quality
- design aspects
- aesthetic preference

18

4. Construction Industry Standard

4.4 Categories Of Building

Category A (Landed Housing)

• Detached/ Semi-Detached, Terrace, Cluster House & others related.

Category B (Stratified Housing)
• Flat/ Apartment/ Condominium, Service Apartment, small office

home office (SOHO) and Town House.

Category C (Public Building without CCS)
• Public Building/commercial/industrial buildings without centralised

cooling system)
• Office buildings, schools, factories, warehouses, workshops,

hangers, small office flexible office (SOFO), small office virtual office
(SOVO), religious buildings, stadiums, community halls, hospitals,
airports, universities, colleges, police stations, etc

Category D (Public Building with CCS)
• Public Building/commercial/industrial buildings with centralised

cooling system) -
• Office buildings, schools, factories, warehouses, workshops,

hangers, small office flexible office (SOFO), small office virtual office
(SOVO), religious buildings, stadiums, community halls, hospitals,
airports, universities, colleges, police stations, etc

19

4. Construction Industry Standard

4.5 Weightage Allocation

Residential Building Non Residential Building

Component Category A Category B Category C Category D
(Landed (Stratified (Public (Public
housing) housing)
/Commercial/In /Commercial/I
dustrial ndustrial
building) building)

Structural works 15% 20% 20% 20%
60% 55% 50%
Architectural works 70% 10% 15% 20%
10% 10% 10%
M&E works 5% 100% 100% 100%

External works 10%

Total Score Refer CIS 7:2014,Table110(0P%age 4)

20

4. Construction Industry Standard

4.6 Weightage: Architectural Element

Weightage

Architectural Works element Breakdown Total (%)
(%)

Floor 18
Internal Wall
18
Ceiling
Internal Finishes Door 8 68
Window 8
Roof Internal Fixtures
External Wall 8
Apron & Perimeter Drain Skim coat or Pre-packed
Car Park/Car Porch plaster 8

Material & Water ponding test 10
Functional test
10

3

3

3
6

3

Grand Total 100

Refer CIS 7 :2014,Table 7 (Page 8) 21

4. Construction Industry Standard

4.7 QLASSIC Assessment Structure
(Upon project completion)

1.Internal Finishes Basic M&E Fittings 1.Link way/ Shelter
2.External drain
-FloorARCHITECTURAL WORK 3.Roadwork
-Internal Wall M&E WORKS 4.Footpath & Turfing
-Ceiling 5.Playground
-Door EXTERNAL WORKS 6.Fence & Gates
-Window 7.Bin centre
-Internal Fixture 8.Electrical sub-station
2.External Finishes 9.Court
10.Swimming pool
- Roof 11.Guard House

- External Wall

- Apron & Perimeter Drain
3. Material & Functional

Test

22

5. QLASSIC Assessment Process

ApplicationCIDB: CIDB: Assessor: CIDB:
Desk Sampling
On Site AssessmentApplicants toto determine theQualified &CIDB to issue the
submit sampling size & independent QLASSIC Score
Resultsapplication formlocation.assessors are to(%) for project
to CIDB carry out the assessed
Location of assessment
CIDB to nominate samples are to be
the assessor & predetermined & To verify
arrange for the marked in the compliance of
assessment construction constructed
drawing elements against
the standards
requirement.

To record
compliance in
assessment form.

23

Topic 2:

DEFECTS
CLASSIFICATION

| ARCHITECTURAL WORKS
| BASIC M&E FITTINGS
| EXTERNAL WORK

24

DEFECTS
CLASSIFICATION

ARCHITECTURAL WORKS:

Internal finishing | External wall | Roof | Apron & perimeter drain | Car park & car porch | Material & functional test

25

ARCHITECTURAL WORKS

Internal finishing: Floor Defect Group: Finishing

Defect Group Standard Type of Tolerance Assessment No. Type of finishes Symbol
Finishes Tool 1 Cement Sand Screed CS
2 Tiles T
No stain marks CS/T/TF/C/ Visual 3 Timber flooring TF
4 Carpet C
SF/RF 5 Special Floor SF
6 Raised Floor RF
Consistent color tone CS/T/TF/C/ Visual

SF/RF

Finishing Surface should not be unduly CS Visual
rough or patchy
No permanent foreign CS/T/TF/C/ Visual
material visually detected SF/RF Visual
Finished texture & color to be SF
uniform

26

DEFECT PICTURES

Internal finishes: Floor Defect Group: Finishing

Paint stain on Rough or patchy
floor finishing surface

Inconsistent color 27
tone of floor tile

ARCHITECTURAL WORKS

Internal finishing: Floor Defect Group: Alignment & Evenness

Defect Group Standard Type of Tolerance Assessment No. Type of finishes Symbol
Evenness of surface Finishes Tool 1 Cement Sand Screed CS
Alignment and CS/T/TF/C/ 2 Tiles T
Evenness Falls in wet areas should be in right direction Spirit level 1.2 3 Timber flooring TF
For staircase, the variance in lengths of treads SF/RF 4 Carpet C
and risers must not exceed 5 mm from < 3 mm per m and steel 5 Special Floor SF
dimensions specified in the approved drawings C 6 Raised Floor RF
Joints are aligned with skirting tiles or wall tiles CS/T/TF/C/ 1.2 m wedge

SF/RF Visual
CS/T/TF/C/
Spirit level 1.2
SF/RF
m
T
Spirit level 1.2

m and steel

wedges

Visual

Joints are aligned between tiles T Visual
No protrusion or potential of tripping over of RF Visual
panels
Lippage between two tiles T Tapping rod or
≤ 1 mm L-square (200
mm x 300 28
mm) and steel
wedge

DEFECT PICTURES

Internal finishes: Floor Defect Group: Alignment & Evenness

Lippage between
two tiles more
than 1mm

Floor tiles jointing

not align with wall
tiles

Unevenness of
floor finishing
more than
3mm/1.2m

Staircase, the
variance in lengths
of treads and risers
exceed 5mm

29

ARCHITECTURAL WORKS:

Internal finishing: Floor Defect Group: Crack & Damages

Defect Group Standard Type of Tolerance Assessment No. Type of finishes Symbol
Finishes Tool 1 Cement Sand Screed CS
2 Tiles T
No visible damages/defects ( eg: CS/T/TF/ Visual 3 Timber flooring TF
Visual 4 Carpet C
chipping, broken tiles, crack tiles, C/ 5 Special Floor SF
RF
Cracks and scratches, broken timber etc.) SF/RF
Damages
No warpage TF

No loose floor panels or rocking RF Visual

6 Raised Floor

30

DEFECT PICTURES

Internal finishes: Floor Defect Group: Crack & Damages

Tile chip off / damages Visible crack on
floor screed
finishing

31

ARCHITECTURAL WORKS:

Internal finishing: Floor Defect Group: Hollowness & Delamination

Defect Group Standard Type of Tolerance Assessment No. Type of finishes Symbol
Finishes Tool 1 Cement Sand Screed CS
2 Tiles T
No hollow sound when swipe CS/T/SF Tapping rod 3 Timber flooring TF
and tapped 4 Carpet C
5 Special Floor SF
Hollowness/ No sign of delamination TF/C/RF Physical 6 Raised Floor RF
Delamination TF
Timber strips to rest firmly on Visual &
joists or screeds Physical

32

DEFECT PICTURES

Internal finishes: Floor Defect Group: Hollowness & Delamination

Hollow sound on floor tiles Hollowness on
skirting floor finishes

33

ARCHITECTURAL WORKS

Internal finishing: Floor Defect Group: Jointing

Defect Group Standard Type of Tolerance Assessment No. Type of finishes Symbol
Finishes Tool 1 Cement Sand Screed CS
2 Tiles T
Edge to be straight and aligned CS/T/TF/C/ Visual 3 Timber flooring TF
4 Carpet C
SF/RF 5 Special Floor SF
6 Raised Floor RF
Consistent skirting thickness and no visible CS/T/TF/C/ Visual
gaps between wall and skirting SF/RF

Joints are aligned between tiles and T Visual
consistent in size
Jointing

No visible gaps between tiles/timber strips/ T/TF/C Visual
carpet TF Visual

Edges of the floor are properly sealed

34

DEFECT PICTURES

Internal finishes: Floor Defect Group: Jointing

Inconsistent Edge of
thickness at floor and
tiles skirting wall not
straight &
Stain mark at align
tile jointing
Inconsistent
Visible gap Poor grout gap size at
between tiles joint between tiles between
or skirting tiles. tiles.

35

ARCHITECTURAL WORKS

Internal finishing: Internal wall Defect Group: Finishing

Defect Group Standard Type of Tolerance Assessment No. Type of finishes Symbol
Finishes Tool
PF/T/P/WP/W 1 Plaster finishes PF
T/CL/GB/AC
No stain marks PF/T/P/WP/W Visual 2 Tiles finishes T
T/CL/GB/AC
3 Painting P
PF/P
Consistent colour tone and good WT Visual 4 Wallpaper WP
paintwork P
5 Wood /timber panel WT
No rough/patchy surface P
P Visual 6 Cladding CL
Surface should be smoothly finished Visual
Finishing No brush marks to be seen P Visual 7 Glass blocks/ Glass panels GB
Good opacity, no patchiness resulted Visual
from touch up work 8 Architectural coating AC
Visual
Surfaces are evenly painted Visual and
Surface should be free from peeling, physical
blister, chalkiness (no discolouration and
fading)

36

DEFECT PICTURES

Internal finishes: Internal Wall Defect Group: Finishing

Paint stain / Inconsistent
drip on wall colour toner
finishing

Rough / patchy surface
on wall plaster finishing

Brush mark on
wall finishing

37

ARCHITECTURAL WORKS

Internal finishing: Internal wall Defect Group: Alignment & Evenness

Defect Group Standard Type of Tolerance Assessment No. Type of finishes Symbol
Finishes Tool 1 Plaster finishes PF
Alignment and 2 Tiles finishes T
Evenness Eveness of surface PF/T/P/WP Spirit level 3 Painting P
4 Wallpaper WP
/WT/CL/G ≤ 3 mm per 1.2m and 5 Wood /timber panel WT
6 Cladding CL
B/AC 1.2 m steel wedge 7 Glass blocks/ Glass panels GB
8 Architectural coating AC
Verticality of wall PF/T/P/WP Visual
38
/WT/CL/G

B/AC

Walls meet at right angle PF/T/P/WP ≤ 4mm over L-square
/WT/CL/G 300 mm (200mm x
300mm and
B/AC steel wedge

Joints are consistent in size T - Visual

Wall paper should be stretched and WP Visual
even surface

Glass blocks/panels should be properly GB Visual

aligned

Lippage between two tiles Tapping rod

or L-square

T ≤ 1 mm (200 mm x

300 mm and

steel wedge

DEFECT PICTURES

Internal finishes: Internal Wall Defect Group: Alignment & Evenness

Walls not meet at right Unevenness of wall
angle ≥4mm/300mm surface ≥3mm/1.2m

39

ARCHITECTURAL WORKS:

Internal finishing: Internal wall Defect Group: Crack & Damages

Defect Group Standard Type of Tolerance Assessment No. Type of finishes Symbol
Finishes Tool 1 Plaster finishes PF
2 Tiles finishes T
No visible damages/defects/ PF/T/P/WP Visual 3 Painting P
visual crack/ dent/scratches/ /WT/CL/GB 4 Wallpaper WP
5 Wood /timber panel WT
Cracks and Damages corrosion /AC 6 Cladding CL
Glass blocks/ Glass
Crack and warpage should not WT Visual 7 panels GB
be detected 8 Architectural coating AC

40

DEFECT PICTURES

Internal finishes: Internal Wall Defect Group: Crack & Damages

Visible crack on Tile chip off /
wall plaster and dented / damage
tiles finishing
41

ARCHITECTURAL WORKS

Internal finishing: Internal wall Defect Group: Hollowness & Delamination

Defect Group Standard Type of Tolerance Assessment No. Type of finishes Symbol
Finishes Tool 1 Plaster finishes PF
2 Tiles finishes T
No hollow sound when PF/T Tapping rod 3 Painting P
swipe and tapped 4 Wallpaper WP
WP/WT 5 Wood /timber panel WT
Hollowness/ No sign of delamination Physical 6 Cladding CL
Delamination WF Glass blocks/ Glass
Timber strips to rest firmly Visual & 7 panels GB
on joists or screeds Physical 8 Architectural coating AC

42

DEFECT PICTURES

Internal finishes: Internal Wall Defect Group: Hollowness & Delamination

Hollow sound on
wall tiles finishing

43

ARCHITECTURAL WORKS

Internal finishing: Internal wall Defect Group: Jointing

Defect Standard Type of Tolerance Assessment No. Type of finishes Symbol
Group Finishes Tool 1 Plaster finishes PF
Edges to be straight, aligned and 2 Tiles finishes T
Jointing consistent PF/T/P/WP/ Visual 3 Painting P
4 Wallpaper WP
Joints should not be visible WT/CL/GB/ 5 Wood /timber panel WT
6 Cladding CL
Proper anchoring at all edges AC 7 Glass blocks/ Glass panels GB
Edges should be neatly laid and 8 Architectural coating AC
finished PF/T/P/WP/ Visual
Consistent and neat marking 44
Joints between tiles consistent in size WT/
Proper anchorage for panels
Edges should be properly aligned and CL/GB/AC
sealed
Consistent spacing and within WP Visual
allowable tolerance
WP Visual

T/CL/GB Visual
T Visual
CL Visual
Visual
WT

CL Visual

ARCHITECTURAL WORKS

Internal finishes: Internal Wall Defect Group: Jointing

Inconsistent wall Inconsistent gap joint
tile thickness size between tiles

Inconsistent Edge of wall not 45
grout joint straight and align
between tile

ARCHITECTURAL WORKS

Internal finishing: Ceiling Defect Group: Finishing

Defect Group Standard Type of Tolerance Assessment No. Type of finishes Symbol
Finishing Finishes Tool Plaster / Skim coat PSCC
No stain marks PSCC/FCGS Visual FCGS
Consistent color tone 1 ceiling
Paintwork with good PSCC/FCGS Visual False ceiling/grid
opacity and with no
brush marks PSCC/FCGS Visual 2 system

46

ARCHITECTURAL WORKS

Internal finishes: Ceiling Defect Group: Finishing

Inconsistence
colour tone

Stain mark on
plaster ceiling

47

ARCHITECTURAL WORKS

Internal finishing: Ceiling Defect Group: Alignment & Evenness

Defect Group Standard Type of Tolerance Assessment No. Type of finishes Symbol
Finishes Tool Plaster / Skim coat PSCC
Alignment and Surface should be smooth, PSCC/FCGS FCGS
Evenness even, not wavy and not Visual 1 ceiling
sagging PSCC/FCGS False ceiling/grid
Straight and aligned ceiling
edges FCGS 2 system
Alignment of rails should
be visually straight FCGS Visual
Laid neatly on grids Visual
Visual

48

DEFECT PICTURES

Internal finishes: Ceiling Defect Group: Alignment & Evenness

Alignment not straight

49

ARCHITECTURAL WORKS

Internal finishing: Ceiling Defect Group: Crack & Damages

Defect Group Standard Type of Finishes Tolerance Assessment No. Type of finishes Symbol
Tool Plaster / Skim coat PSCC
FCGS
No visible damages eg: PSCC/FCGS Visual 1 ceiling
False ceiling/grid
spalling, leaks cracks,
2 system
chipped, cracked surfaces

Cracks and Damages or coners should not be
detected etc

No pin holes PSCC Visual
FCGS Visual
No sign of corrosion FCGS Visual

Panels should not warp

50

DEFECT PICTURES

Internal finishes: Ceiling Defect Group: Crack & Damages

Visible crack and damages
on ceiling

51