MS General Finishing Work CCB_PE_Biện pháp thi công hoàn thiện

AP

APPROVED
Approved

AC

APPROVED WITH COMMENT
Contractor to revise the correction and resubmit

NA

NOT APPROVED
Revise the correction and resubmit before proceeding

For ApprovalREVIEWED

RE

Information acknowledged with no comment

RC

REVIEWED WITH COMMENT
Information acknowledged with comments

Note: Approval or comment does not relieve the Contractor of
all obligations covered under contract

Discipline: Architectural
10 Jul 20

Date:

A

25-Jun-2020

For Approval

J.H CHOI

K.S KIM

M.S KIM

REV

DATE

DESCRIPTION

Approved

Checked

Prepared

OWNER

VAN PHONG POWER COMPANY LIMITED
PROJECT

Van Phong 1BOT Thermal Power Plant Project
Status
□Approved
□Approved with Comment
□Not Approved
□Reviewed

OWNER’S ENGINEER
Pöyry Switzerland Ltd.
EPC CONTRACTORS

IHI–TESSC–CTCI–DHI CONSORTIUM

PROJECT DOCUMENT No

REV

VP1-0-L4-A-UCB-20015

A

DOCUMENT TITLE

METHOD STATEMENT FOR GENERAL FINISHING WORK FOR CCB
EPC

EPC DOCUMENT No.
VP1-0-L4-A-UCB-20015

Doosan Heavy Industries and Construction

REV
A

Page |1


VPCL
VP1 Consortium

VP1 BOT Thermal Power Plant

CONTENTS

1.

PURPOSE ............................................................................................................................. 2

2.

REFERENCE DOCUMENTS ............................................................................................ 2

3.

TOOLS & EQUIPMENTS .................................................................................................. 2

4.

RESPONSIBILITIES .......................................................................................................... 2

5.

MATERIAL .......................................................................................................................... 2

6.

PROCEDURE AND SEQUENCE ...................................................................................... 3

6.1

CONCRETE BLOCK WORK ............................................................................................ 3

6.2

PLASTERING WORK ........................................................................................................ 5

6.3

TILING WORK ................................................................................................................... 8

6.4

RAISED FLOOR WORK ................................................................................................. 10

6.5

CEILING WORK .............................................................................................................. 12

6.6

DRY WALL PARTITION ................................................................................................ 13

6.7

PAINTING WORKS ......................................................................................................... 14

6.8

DOOR AND WINDOWS WORKS .................................................................................. 16

7.

QUALITY CONTROL ...................................................................................................... 24

8.

ENVIRONMENT, HEALTH AND SAFETY (EHS) ...................................................... 24

8.1

RESPONSIBILITIES AND INSTRUCTIONS ............................................................... 24

8.2

SAFETY (PPE) ................................................................................................................... 25

8.3

ENVIRONMENTAL ......................................................................................................... 25

8.4

JOB SAFETY ANALYSIS. ............................................................................................... 30

Page |2


METHOD STATEMENT FOR
GENERAL FINISHING WORK

1.

PURPOSE
-

The purpose of this method is to describe the methodology and sequence involved in construction work for
CCB building and to detail out the steps to be taken in order to meet the technical requirement of Van Phong 1
thermal power plant project.

-

Plant Project/Project: Van Phong 1 BOT Thermal Power Plant Project

-

Company/Owner:

Van Phong Power Company Limited (VPCL)

-

Contractor:

EPC

-

This method statement describes the work procedures to be carried out during an execution stage of finishing
works as below.

No
1
2
3
4
5
6
7
8

2.

Contents of Finishing Work

Concrete block work
Plastering work
Tiling work
Raised floor work
Celling work

Dry wall partition
Painting works
Door & windows work

REFERENCE DOCUMENTS
-

Project technical requirement
02 Part III-2 Exhibit B1 Tech Spec Section 8
Part III-2 Exhibit B1 Appendix G - Civil Structural Technica
VP1-0-L4-A-UYX-00101 ~ 00105, Architecture General Drawings

3.

TOOLS & EQUIPMENTS
In accordance to requirement for each working procedures

4.

RESPONSIBILITIES
-

It is overall responsibility of Project Manager / Engineering Manager to organize resources prior to perform
construction activities as per project specification in compliance with quality, schedule & safety requirements.

-

It is the responsibility of Construction Manager/Site Manager that construction activities are executed
according to the relevant project specification in compliance with quality, schedule & safety requirements

-

EHS Manager will ensure coordination with Site Engineer that all measures/construction taken shall be
maintained till completion of job.

-

5.

The QC Inspector will ensure that the works are executed according to the requirements of dossier are fulfilled.

MATERIAL
-

According to approved MAS (or reviewed) by Owner for each finish item work.

-

All Material shall be of commercial quality and of proper, free from defects impairing strength and/or durability

Page |3


METHOD STATEMENT FOR
GENERAL FINISHING WORK
comply with approved material by Owner.
-

Materials shall be comply with Technical Specification to ensure required Quality. (If any case Material shall/or
follow manufacture recommend contractor will submit for Owners approval)

-

Sampling sequence: depend on each type of material and each building.

6.

PROCEDURE AND SEQUENCE

6.1

CONCRETE BLOCK WORK

6.1.1

CONSTRUCTION OF BLOCK MASONRY
-

Please supplement:
- How much the thickness of mortar layer is.
- Allowable tolerance for surface checking after
brick laying?
- Wire net shall be installed at the contiguous area
of block and column or girder and how width it is.

Before installation hollow block all walls will be survey and marking location at construction approved drawing
by surveyor and checking by supervisor by daily. All walls shall be built true to dimensions, plumb and square
(in accordance to approved Drawing).

-

The hollow block will be fill by cement mortar at the location that mentioned on mix design.

-

Surface shall be cleaned before installation.

-

From the established site datum level, periodically check course levels, window or sill levels, lintel level and
roof level.

-

All accessories for block works shall be installed as per standard drawing.

-

Erect walls to comply with specified construction tolerances, with course accurately spaced and coordinated
with other construction(in accordance to approved Drawing)

-

Scaffolding shall be properly planned and designed by the subcontractor. It shall be approved by Engineer
before commencement of work. Sufficiently strong so as to withstand all loads likely to come upon it and
having two sets of vertical supports, shall be provided.

6.1.2

MORTAR FOR BLOCK WORK

-

Mixing of Mortar shall be in measured with proper method and checked before mixing

-

The blocks should be laid on full mortar bedding and in such a way that no cracks are formed.
[Concrete Hollow Block Mortar Bedding Concept]

6.1.3

REINFORCEMENT INSTALLATION
-

Place reinforcement in accordance with the size, type and location as per approved Standard Drawing

-

The contact places of masonry with concrete structures shall be reinforced with proper mesh to prevent the
cracks and the mesh will be overlaped 100mm before plastering.

-

Filler board and sealant shall be applied on joint between structure and block wall as per standard drawing.

Page |4


METHOD STATEMENT FOR
GENERAL FINISHING WORK

Accessories as per approved Standard Drawing
6.1.4

REINFORCED CONCRETE SUPPORT

Page |5


METHOD STATEMENT FOR
GENERAL FINISHING WORK

6.2

PLASTERING WORK

6.2.1

WORKMAN SHIP

6.2.2

Surface Preparation and Installation of Plaster Accessories
-

Surfaces to receive cement plaster shall be cleaned of all projections, dust loose particles, grease and other
foreign matter. Plaster shall not be applied directly to

-

Concrete or masonry surfaces that have been coated with bituminous compound, Surfaces that have been
painted or previously plastered.

-

Before the plaster work is started, masonry surfaces shall be wetted thoroughly with fog spray of clean water
to produce a uniformly moist condition. Accessories shall be checked carefully for alignment before work is
started

-

All Accessories shall be prepared and installed in accordance to approved Standard Drawings

-

All undercoats shall be scratched to form an adequate key for the next coat.

-

Level Guides shall be provided up to required thickness as per approved Drawings.

-

Plastering shall proceed only when the masonry block works are completed.

6.2.3

Application of Plaster
-

Cement plaster shall be applied in accordance to Specification the thickness as per approved
drawing, mortars will be used to make landmarks with adequate size square and thickness as
per requirement.

-

For external plaster, the plastering operations shall be started from the floor and carried downwards.

Page |6


METHOD STATEMENT FOR
GENERAL FINISHING WORK

[Concept for External Plastering]

-

The internal plaster, the plastering may be started wherever the building frame, roofing and brick work are
ready.

-

The rough plaster shall be started from top to bottom. It’s no needed smoothing surface but the tight press up
tile and allowed to dry sufficiently not rapidly.

-

Curing shall be spraying with water as often as necessary to keep the plasterwork damp.

-

Plaster work shall be level finished, plumbed, square and true within specified tolerance without waves, cracks,
blister pits, crazings, discolorations, projects or other imperfections. Plaster work shall be formed carefully
around angles contours, and well up to screeds. Special care shall be taken to prevent sagging and consequent
dropping of applications. There shall be no visible junction marks in the finish coat where one day's work
adjoint another.

-

Several types of requirements for plastering work:
+ Normal condition: Cement plaster shall be applied in two coats
1) Brown Coat - Shall be applied with sufficient pressure to fill the grooves in hollow block or concrete to
prevent air pockets and secure a good bond. Brown coat shall be lightly scratched.
2) Finish Coat - Just before the application of the finish coat, brown coat shall again be evenly moistened with
fog spray. Finish coat shall be floated first to a true and even surface then troweled in a manner that will
force the sand particles down into the plaster. Plastered surfaces shall be smooth and free from rough area,
trowel marks, cracks and blemishes.
+ Wet condition: Cement plaster with liquid waterproofing.

Page |7


METHOD STATEMENT FOR
GENERAL FINISHING WORK

+ Chemical resistant finishing: Cement plaster with chemical resistant.

6.2.3.1 Smooth finished cement plaster
Finishing for Plaster Surface

The proportions of sand and cement shall be as specified and shall cover all irregularities, undulations, depressions
due to chasing etc. in the surface to be plastered. Straight edges shall be freely used to ensure a perfectly even
surface. The finished surface shall be true and even and present uniform texture throughout and all joining marks
shall be eliminated. All corners, edges and angles shall be made perfectly to line, plane and plumb. All exposed
angles and junctions of walls, doors, windows, beams, slabs etc. shall be carefully finished so as to furnish a neat
and even surface.
Plastering items amongst all other things as described in various items also include
-

Curing cement plaster by maintaining in a moist condition for one day following application. Keep enclosed
and fog spray (after initial set) as required to prevent dry-out. Preparation of surfaces to receive the plaster,
providing cement plaster of the specified average thickness and proportions

-

All labor, materials, scaffolding, use of tools and equipment to complete the plastering work as per
specifications.

-

Curing as per Specification and requirement

-

Cleaning the surface of doors, windows, floors or any other surfaces where plastering might have splashed.

-

Finishing the portion of plaster left above the terrazzo, plain cement tiles, iron or any type of skirting work to
be finished rounded or as directed by the Engineer separate operation after laying of floor tiles skirting.

Page |8


METHOD STATEMENT FOR
GENERAL FINISHING WORK
6.2.3.2 Plaster Accessories.
-

Strip metal lath centered over junctions of dissimilar backing materials and casing beads

terminations of

plaster finish shall be installed.
-

Corner and horizontal beads shall be level, vertical beads, plumb, straight and true, assuming proper plaster
thickness.

-

Plaster Stop shall be used where called for or as required to stop plaster surface against a dissimilar to form a
neat and definite joint.

-

At all control joint locations install back to back square nosed casing beads.

6.2.3.3 Cutting, Patching & Repairing
-

Cut out & repair all damaged plaster and all fine cracks, pits, checks waves, blisters and other defects which in
the opinion of the Owner will impair the appearance and the life and usefulness of the finish surfaces.

-

All repairs shall be used approved material.

6.2.3.4 Housekeeping / Cleaning
-

Site will be kept clean and tidy during the works and all the debris / waste material will be cleaned and carted
away to approved dumping area.

6.3

TILING WORK

6.3.1

Surface preparation
-

Substrate shall be prepared as described hereunder irrespective of the tiling system used.

-

Manufacturer Technical Data shall be followed.

-

The substrate must be structurally sound, cement laitance free, clean and free from dirt, oil grease or other
containments and loose or friable particles.

-

Weak concrete and/or cement laitance must be removed preferably by brush and/or vacuum.

-

Any large repair to the substrate, filling of blowholes / voids etc, must be carried out using appropriate product
as described under approved concrete repair procedure; and the substrate shall be saturated thoroughly with
water (not applicable for PVC tiles), to achieve a surface saturated dry condition prior to application.

-

Variation in level must be in accordance to approved Inspection and Test Plan

-

Levelling and Slope shall be provided in accordance to approved Drawing and location of any drain to prevent
ponding after construction.

6.3.2

Tile Installation
[Cutting and Openings around M&E outlets]
-

Cutting Procedure

Page |9


METHOD STATEMENT FOR
GENERAL FINISHING WORK

 Treatment around M&E Outlets

[Wall Tile Installation]
-

Installation of wall tiles shall start from bottom and progress upwards in true line, plane and vertically.

-

Once the adhesive has been applied evenly on prepared surface, soaked tile (not applicable for PVC tiles)
shall be pressed firmly into adhesive mortar by assuring uniform bonding and any adjustments shall be done
within the time specified in technical data for each type of adhesive.

-

Even joints shall be provided with the help of plastic spacers and no defective tiles shall be used.

-

Proper bonding shall be assured by using right tools for application and combining the cement material on the
plastered walls.

-

The joints will be cleaned immediately after installation prior to setting of material and tiles shall be kept clean
all the times, any stains will be cleaned prior to set or dry.

-

Control Joints, Expansion Joints, Column wall and Beam wall joints shall be provided as per the construction
drawings.
[Floor Tile(Stone) Installation]

-

Full bonding is requested and any tile with
hollow-sounding shall be replaced. This is
the critical condition for inspection. Please
state it out.

The area where tile work to be done shall be barricaded with warning tapes to avoid foot traffic and other
trades activities in that area.

-

Defective tiles(Stones) shall be segregated and not be used in permanent work except as selected cut pieces
where required.

-

Tiles(Stones) shall be laid in true plane in the given elevation by skilled tile fixers within the allowable
tolerances as per approved Inspection and Test Plan

Page |10


METHOD STATEMENT FOR
GENERAL FINISHING WORK
-

Joints shall be maintained uniform and straight with the help of plastic spacers.

-

Tiles(Stones) shall pressed on to the adhesive mortar for proper bonding and

the joints shall be cleaned

immediately after installation prior to setting of material and tiles(Stones) shall be kept clean all the times, any
stains will be cleaned prior to set or dry
-

Smoothness of Tile(Stone) Surface will be checked after and during installation continuously
[PVC and Vinyl Tile Installation]

-

The substrate shall keep dry and clean in all the time to assure proper bonding.

-

The floor area shall be divided into sections prior to installation.

-

Bonding shall be applied in one section at a time.

-

Tile laying shall be started at the centre and work outwards.

6.3.3

Tile Joint filler Application
-

Filler application procedure is similar for all types of ceramic tiles as described below and further the grouting
is not applicable for PVC and vinyl tile systems.

-

At least after 24 hours, when the tiles are set, joints shall once again be cleaned and QC inspector shall check
the work prior to joint filling.

-

After rectification of any defects, properly mixed joint filler shall be applied to fill the joints completely using
diagonal strokes with a hard rubber

-

Excess joint filler shall be cleaned off the tile surface with a wet sponge while the filler is still fresh.

-

All tools and application equipment shall be cleaned with water immediately after use.

-

Curing shall be carried out with proper protection to avoid any tapes

-

Upon completion of refractory tile installation, final inspection shall be done as per approved ITP.

6.4

RAISED FLOOR WORK

6.4.1

Preparation
-

Concrete surface below raised floor shall be repaired and cleaned

-

Walls shall be plastered and painted above the proposed finish floor level.

-

Any service lines such as pipes or wiring shall be completed prior to lay floor panels, dust proof coat shall be

applied before raised floor installation, cable tray and electrical panel support shall be installed by others
before execution of raised floor works according to future discussion of schedule.

6.4.2

Determination of border panel sizes
-

Raised floor panel plan shall be drawn and one dimension of the space be divided by 600 mm (panel width)
lines_if any case in accordance to specified in approved drawing

-

First boarder panel shall be started with full panel size (600mm) and the width of the opposite boarder panel
shall be determined as per the balance distance of the dimension concerned.

-

Same procedure shall be followed to determine the border panel in transverse direction.

Page |11


METHOD STATEMENT FOR
GENERAL FINISHING WORK
6.4.3

One end of the edge panel shall be laid on edge angle which shall be connected to the wall
Installation of wall edge angle

-

Raised floor level shall be marked on one wall and the same level shall be transferred to other 3 walls using a
laser and snap a connecting chalk line to mark the finish level of the floor.

-

The wall angle shall be attached securely using anchors at the required level and the joints between inside and
outside corners of moulding shall be kept tight

6.4.4

Installation of Pedestals
-

Centre of all Pedestal positions shall be marked on the floor as per determined layout.

-

Pedestals shall be positioned along the first longitudinal stringer direction at 600mm spacing.

-

A guide string shall be stretched above the longitudinal stringers at the required top level of the stringer.

-

Main stringer shall be temporarily fixed on the square head of the pedestal and the height of the pedestal shall
be adjusted by maintaining top level of the stringer in required level with the use of guide string.

-

The adjacent line of pedestals shall be installed in same manner described and, two transverse stringers shall be
fixed in between installed longitudinal stringers and diagonal distances shall be measured to verify the square
of the grid.

-

After verification, pedestals shall be glued (or anchored) in position as specified by manufacturer.

-

Cable Tray and additional supporting required for reinforce access floor panel shall be designed and
considered in accordance to actual layout and site condition

6.4.5

Installation of Longitudinal and Transverse Stringers
-

After fixing the pedestals in position longitudinal and transverse stringers shall be fixed in to the opening
provided in head gasket.

-

Screws shall be driven through the holes provided, ensuring electrical conductivity with frame, screws and
pedestals to facilitate earthing.

-

The earthing of the structure shall be carried out by connecting some perimeter points already prearranged to
the earth network.

6.4.6

Installing panels
-

Panel installation shall be started after installation of whole grid structure.

-

Edge panels are cut individually with a straight sharp edge to ensure a good contact with wall surface.

-

Floor panel shall be installed on the grid structure without leaving any gap in between panels.

-

Installed floor panels could be removed with proper equipment to lifter in case for any adjustment or make an
inspection.

-

Access Floor Panel (Removable Type) will be installed after Frame has been complete. Panels will be
temporary removed during cabling(required pulling arera) and carefully handled to prevent damage during
reinstallation

-

During installation and working period, Access Floor Panel will be protected with proper PVC or other proper
materials to prevent damage.

Page |12


METHOD STATEMENT FOR
GENERAL FINISHING WORK
6.5

CEILING WORK

6.5.1

Preparation
-

Concrete surface above ceiling shall be formed finish as per the construction drawings.

-

Sequence: 1/ Hanger bolt.
2/ Duct, FF, lighting conduit, etc.
3/ Plumbing.
4/ Ceiling frame.
5/ Ceiling tile.

-

Supports for any lighting or other fixture which requires additional support shall be provided in accordance to
requirement

-

All ceiling panels shall be kept clean, dry and protected from the elements and shall be removed from the
cartoons prior to installation, to allow them to adjust to interior conditions.

6.5.2

Determination of border panel sizes
-

Ceiling plan shall be drawn and one dimension of the space be divided by 600 mm (panel width) lines.

-

Then border panel sizes shall be determined by symmetrically dividing the remaining distance in both sides.

-

If the remaining distance is too small, one panel width shall be added to the balance distance and divided by 2,
to increase the width of border panel.

6.5.3

Same procedure shall be followed to determine the border panel in transverse direction.
Installation of wall angle

-

False ceiling level shall be marked on one wall and the same level shall be transferred to other 3 walls using a
water level or a laser and snap a connecting chalk line to mark the finish level of the ceiling.

-

The wall angle shall be attached securely using expanding anchors and the joints between inside and outside
corners of moulding shall be kept tight

6.5.4

Install Hangers and Fasteners
-

Manufacturer Technical instructions shall be followed.

-

Hangers shall be installed above the main beams typically in accordance to Manufacture recommend

-

A chalk line shall be drawn on the concrete surface and position of hanging rod shall be marked and hangers
be attached in correct position.

-

A guide string shall be stretched from one end of the room to other, below the wall angle where the first main
beam will hang.

-

The height of the rod shall be adjusted with the help of guide string, so that the main beam is held at the correct
height.

6.5.5

Install the Main Beams
-

One end of the main beam section shall be cut so that cross tee route hall is locating at the correct position
from the end wall.

Page |13


METHOD STATEMENT FOR
GENERAL FINISHING WORK
-

All rod hangers shall be connected to main beam at the correct level.

-

Additional sections shall be joined to main beam as required to reach the other end wall.

-

Leftover pieces of main beam from the first row shall be used to start the next row.

-

The process shall be repeated for other main beams.

6.5.6

Install Boarder Cross Tees
-

One end of the Cross Tee shall be placed against the edge of the wall angle at the side and other end shall be
cut at the place where it crosses the guide string.

-

Uncut end of the cross tee shall be inserted in to the main beam and the cut end shall rest on the wall angle.

-

Repeat the procedure for other border cross tees.

6.5.7

Square the Grid
-

Two cross tees shall be installed between the two main beams in line with the first two border cross tees.

-

The diagonal distances of 600x600 mm opening shall be measured and compared to verify the grid to be

squared.

6.5.8

If it is not square, one of the main beams shall be shorten until the diagonals are equal.
Installing panels

-

Panel installation shall be started after installation of whole grid structure.

-

Panels are slightly tilted and lifted above framework and gently rested on cross tee and main beam edges.

-

Border panel shall be measured cut individually with a straight edge using a very sharp utility knife.

6.5.9

Lighting and other fixtures
-

Lighting and other fixtures shall be supported by the grid itself and not by the ceiling panels.

-

Extra hangers shall be provided lighting and other fixtures depending on the size and weight of these fixtures.

-

Prior to the delivery, detailed and comprehensive arrangements will be made to ensure the most efficient
hoisting and distribution of materials into the site areas.

-

All materials delivery will be carefully supervised and coordinated and proper documentation will be kept
throughout the contract period.

-

Such deliveries will be arranged in conjunction with site requirements and programs need.

-

Upon delivery, material and equipment will be unloaded by crane or bottom truck with appropriate lifting
capacity.

-

6.6

All materials shall be inspected to check the quality.

Dry Wall Partition

6.6.1

Layout marking or setting out

-

Survey team will carry out layout marking as per approved drawing in concurrence with the schedule of work.
The layout would be marked with chalk line on the floor.

Page |14


METHOD STATEMENT FOR
GENERAL FINISHING WORK
-

These lines will get transferred to the slab with the help of Laser/plumb to maintain the verticality of Partition.
The type of partition will be marked alongside the marking, for easy reference.

6.6.2

The level and line for setting out would be taken from the authenticated bench mark and grid lines The layout
Frame work for partitions and lining

-

Top tracks will be fixed onto the soffit as per the particular wall type.

-

The tracks will be fixed securely with wall plug & self taping screws, and the floor tracks will also be fixed in
the same manner with same hardware.

-

The studs will be installed as per approved shop drawing between the top and bottom tracks.

-

The frame work will be inspected by Site Engineer against shop drawing details and discrepancy, if any will be
rectified prior to proceeding further.

6.6.3

Frame work for ceilings and Boarding for Partition
-

All hangers are fixed to the soffit of slab with the help of anchor nails in accordance to specified spacing center
to center.

-

After hangers are fixed then the wall angles are fixed to the walls at the perimeter of ceiling area. Then the
main channels are fixed with the help of channel screws.

-

After fixing main channels then the furring channels are fixed to the bottom of main channels in perpendicular
with the help of channel screws.

-

Boards will be installed along the stud direction with plaster board screws. The screw heads will be driven 23mm from the external face to allow for the filling of screw heads.

6.6.4

Door / Window openings(if required)
-

For doors and window openings, as per the approved drawing and door opening schedule

-

Frame work would be done as shown in the shop drawing details. Particular attention would be given for
squareness of openings.

6.7

Painting works
-

Before chose the color, the Contractor is request
to provide a mock-up area with all proposed
color and show the layer by layer of painting
procedure further than material submission only.
Please state out this action in this MS

All paints shall be suitable for use in humid tropical coastal environment, and shall be to the approval of the
Owner. The Contractor shall furnish all necessary information to the paint manufacturer to enable him to
supply the most suitable paint complying with the requirements of Owner.

-

Colors - All colors shall be factory-mixed pigments which are non-fading, non-bleeding and finely ground.

Selection of colors shall be approved by the Owner.

-

The temperature, humidity and environment shall be maintained as per manufacturers recommendation.

-

All damaged places shall be touched – up before handing over the facility.

6.7.1

Surface preparation.
-

Preparation of surfaces shall be thoroughly clean, free or rust, grease, dirt and other substances that would
prevent adhesion of coating to be applied.

Page |15


METHOD STATEMENT FOR
GENERAL FINISHING WORK
-

By removing all dirt, dust efflorescence, oil and grease and stains, or other foreign substances by wire or fiber
brushing and/or other approved means to provide good adhesion of paint.

-

Mock-Up will be prepared for Painting to prevent any Quality defection during permanent Works for each
building as per indicated and approved by Owner.

-

All Holes shall be properlty filled with Putty material.

-

The putty layer will be apply for all plaster and concrete emusion paint surfaces.
[Concrete Surface]


Concrete Surfaces shall be rendered to prepare Putty as per Manufacture Recommend.



All dirt, dust efflorescence, Oil and grease, stains or other foreign Obstacles shall be removed before
painting and checked visually.



All hole shall be properly filled with proper material.

[Plastering Surface]


All Cracks and Holes shall be treated in accordance to Manufacture Standard.



Moisture shall be checked in accordance Specification.

[Dry Wall etc.]

6.7.2



Removing all dust, hole and uneveness, knot in timber



Filling of crack nail holes and surface finish

Application.
-

Before painting, hardware accessories, fixtures and similar items that are not to be job painted shall be
protected, masked or otherwise temporarily removed. Removal and reinstallation of items shall be done by
workmen skilled in the trades involved.

-

Except when otherwise specified, all paint shall be applied in accordance with the paint manufacturer's
recommendations.

-

Brush or roller application is recommended for particular type of painting system so that the same can be

implemented in site.

Page |16


METHOD STATEMENT FOR
GENERAL FINISHING WORK
6.8

Door and windows works

6.8.1

Work procedure.

6.8.2

Workman ship.

-

All work shall be installed by skilled workmen specially trained in this type of work.

-

All work shall be erected plumb and true, as shown on approved shop drawings and in proper alignment and
proper relationship to establish lines and grades.

6.8.3
-

Material check.
Before delivery, frames and leaves need to be inspected to make sure material verifications per submitted
approved sample, correct dimension, good Surface Condition.

6.8.4
-

Delivery, storage and handling.
Delivery:
+ Before delivery, windows and theirs various components should be fully protected to ensure the components
remain in good condition until they are ready for installation all materials for delivery should be verified against
the quantity and batch number stated in the delivery order.

Page |17


METHOD STATEMENT FOR
GENERAL FINISHING WORK
+ All required accessories, including friction stays, handles, locking devices, fixing, etc. should be delivered
together with the main components. Materials could be packed in either steel pallets or skids. Upon delivery on
site, the materials should be checked for damages during transportation and that the delivered materials are in
compliance with the specifications.
+ Any damaged or incorrect materials should be returned to the factory.
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Storage:
+ Delivery of materials should be carefully planned according to the installation schedule so that only the
required quantity of materials is stored on site, where the possibility of damages is higher. Just-in-time (JIT)
inventory management system is effective in minimizing unnecessary handling, storage and damages to the

materials. Proper site storage is important in preventing damages to the window components.
+ Suitable storage location should be Sheltered from weathering and fallen objects and Located for ease of
material handling and distribution. Components should be placed on timber bases to avoid direct contact with
the floor.
+ Glass panels should be stored in pallets with individual glass panel separated from one another by protective
sheets to avoid scratches and other damages. The glass panels should also be protected from exposure to water
which may result in “rainbow” effect and jeopardize the visual properties of the glass.
+ In addition, the various components should be arranged according to the installation sequence to facilitate
ease of retrieval, i.e. to minimize searching and unnecessary shifting of material which may lead to damages.

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Handling: Large window units and components which cannot be delivered via staircases should be hoisted (or
other suitable Equipment) in pallets to each floor before distributing to the different areas for installation. In
cases where window frames need to be hoisted without the pallet, the frame should be handled only at the
designed strong points.

6.8.5
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Preparation.
Proper dimensional control and setting out of the wall opening are critical in ensuring the quality of window
installation. Precast facades provide superior dimensional control than the cast in-situ RC walls and brick walls
and require less preparatory works.

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The use of cement grout to fill up large gaps should be avoided as this may lead to cracks in the grout which
would lead to water seepage through the building envelope

6.8.6
-

Marking.
Reference line (R.L) should be set up at appropriate location to facilitate proper alignment of the wall openings
and installation of the window frames.

6.8.7
-

Opening size.
Close dimensional control on wall opening should be exercised to ensure the gap between the wall and window
frame is within the range of 7-25mm wide.

6.8.8
-

Installation.
All parts of the work shall be of the materials, design and dimensions herein specified. Unless otherwise
specifically directed, however, assembly and installation shall be at the discretion of the fabricator

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METHOD STATEMENT FOR
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SKETCH FRAME ANCHOR LOCATION
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Window frame installation:
+ Check the window measurements: Start by making sure that your aluminium window is going to fit into the
hole in the wall. Double check the height and length of your window and the height and length of the
opening in the wall to make sure the fit will be right.
+ Lift the aluminium window into place: Depending on the size of your aluminium window, you’ll need at least
two people to help you lift it into place. One to help you lift the window and the other to make sure the
window doesn’t fall through the other side. As you lift window into place, try to make it as level to the inside
wall as possible.
+ Check that the window is level: Once your window is in position, make sure you have it level. Place your
spirit level on the window ledge to see if it’s flat. If it needs to be raised, rather than lift the whole window

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METHOD STATEMENT FOR
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frame, put a packer under the spirit level until it is flat. Then put the packer under the bottom reveal and snap
it off.
+ Make sure the window is flush with the wall: Once you’ve got your window level, you need to make sure it’s
also flush to the inside wall. To do this, line up your set square against the wall and either push the window
out or get a person outside to push it in, until the wall and window are level.
+ Attach the window frame to the wall: Pre-drill three holes into each side of the reveal at the top, middle and
bottom. Use your set square to make sure the frame stays flush with the wall. Then drill in three screws to
attach one side of the reveal to the wall. Now you have one side of the window attached, you won’t need help
to hold the window in place.

-

Door frame installation:
+ Drill block wall

+ Insert anchors into wall
+ Measure then weld frame bracket into wall.
+ Install door leaf, mortar filling as per standard drawing.
+ Install hardware

-

All hardware shall be installed in a neat, craftsman like manner following the manufacturer's instructions.
Fasteners are supplied together with the hardware in place. Appropriate and applicable fasteners shall be used
for securing hardware to masonry or concrete surfaces. Thru- bolts shall be used where specified or where
necessary for satisfactory installation.

-

After installation, all finish hardware shall be protected from paints, stains, blemishes and damage.

-

All hardware shall be properly adjusted and checked out in the presence of the Owner to see that the hinges,
locks, catches, closers, etc.(in accordance to requirement) operate properly. After the hardware is checked, keys
shall be tagged, identified and delivered to the Owner as per contract requirement

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METHOD STATEMENT FOR
GENERAL FINISHING WORK
-

Any error in cutting and fitting, or any damage to an adjoining work shall be repaired to the full satisfaction of

the Owner

-

All work shall be installed plumb and true and secured with proper fastenings so as to make all work rigid and
firm.

-

After installation, all finishing hardware shall operate and function smoothly and efficiently in strict accord with
their respective expected operating performance. All works which are to receive hardware shall be inspected
and any defect must first be rectified before installing finishing hardware.

-

After has been properly fitted, all exposed items such as knobs, plates, pulls, locks, etc. Shall be removed until
final coat of finish has been applied, and then hardware installed.

6.8.9
-

Glazing and sealing.
For better quality, glazing work should, as far as possible, be carried out by skilled installers in the factory. The
gasket used should be of a continuous length, with splices made at appropriate locations for good fitting around
the corners of the glass panel. When assembling frames, ensure that gasket fits properly to the glazing and the
frames are properly aligned.

-

The gaps between the window frame and wall must be properly sealed to prevent water seepage at these

locations. Depending on the size of the gap, waterproof sealant can be used.
+ All exterior aluminium-to-aluminium field joints shall be sealed with one part sealing compound.
+ All exterior/interior aluminum to concrete/masonry joints shall be caulked with two parts sealing compound.
+ Glazing compound shall be oil-based glazing compound (or any other approved by Owner), performed as
sealing materials.

6.8.10
-

Application of sealant.
All uses of sealing materials, both in the shop and at the site, shall be in strict accordance with the specific
recommendation supplied by the manufacturer of the material.

-

Sealant could be used to seal the gap between wall and window frame if the gap size is between 3-12.7mm.
Before the application of sealant, clean the window frame with white spirit using clean rag. The frame and wall
surfaces around the gap should be protected with masking tape to prevent the sealant from staining these
surfaces and to obtain a neat sealant joint.

-

Backer rod should be used to achieve better compactness of the applied sealant. To obtain complete seal, apply
sealant by pushing the bead forward into the joint cavity. The joint should have continuous caulking to ensure
that all areas are filled. Remove the excess sealant and tool the joint to achieve a smooth surface
+ Masking Tape - Areas adjacent to joint shall be masked to assure neat sealant lines. Do not allow masking
tape to attach clean surface to which the silicone sealant is to adhere.
+ Tooling shall be completed in one (1) continuous stroke immediately after sealant application and before a
skin forms. Masking shall be removed immediately after tooling
+ Sealant shall be applied in a continuous operation. A positive pressure adequate to properly fill and seal the

joint width shall be employed. Tool or strike the building sealant with light pressure to spread the material
against the back-up material.

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METHOD STATEMENT FOR
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+ A tool with a concave profile is recommended to keep the building sealant with the joint. Excess sealant shall
be cleaned from non-porous surfaces, before curing, using a commercial solvent(if required in accordance to
manufacture recommend). On porous surfaces, excess sealant shall be allowed to cure and then be removed by
abrasion or other mechanical means. The sealant shall not be disturbed for at least 48 hours
6.8.11
-

Installation of window glazing.
Material shall be applied in accordance to approved MAS from Owner. For all windows, doors, transoms shall
be of the best quality of its respective kinds and free from internal or surface defects. Thickness of glass shall be
approved by the Owner.

-

It is recommended that glazing work for inner glass panels are carried out in the factory, where higher work
quality can be achieved. Where this is not possible, glazing work must be carried out on site with proper
handling and good workmanship. For fixed glass panels, glazing is usually done on site.

-

This section will discuss the good practices to be adopted when carrying out glazing works on site.

-

Preparatory works before glazing.

-

The protective tapes should only be removed when glazing works is to be carried out. The following
verification works should be carried out prior to glazing work:
+ Inner frame and associated hardware should be checked for defects and damaged frames or hardware should
be replaced. Inner frame should be cleaned and free from dust and debris.
+ The glass shall be prevented from all contact with metal or any hard or sharp metals by using resilient shims
placed at quarter points.
+ Resilient sealants shall be used(or any Material approved by Contractor)
+ Glass shall be installed only in openings that are rigid, plumb and square.
+ Allow sufficient clearance at edges of glass to compensate for some settlement of the building. Clearance
shall be 6.0 mm from edge to frame and 3.0 mm for face.
+ Marking, banners, posters and other decal shall not be applied directly to glass surface as these could cause
thermal stress.
+ Removal of putty or glazing compound smears from glass shall be performed by the contractor to the
complete satisfaction of the Owner

6.8.12
-

Installation of shutter door.
As per the manufacturer’s standard and installation manual.

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METHOD STATEMENT FOR
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METHOD STATEMENT FOR
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METHOD STATEMENT FOR
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-

7.

After finished installation, the roller shutter door was test operation to be smooth and functioning.

QUALITY CONTROL
-

The Site Inspection and Test Plan (ITP) for this work summarize various characteristics to be checked.
The concerned Site Engineer/Foreman will be responsible to ensure stage wise compliance for these
operations and the Site QA/QC Engineer/Inspector will carry-out quality control checks and report the
inspection results.

8.

ENVIRONMENT, HEALTH AND SAFETY (EHS)
8.1 RESPONSIBILITIES AND INSTRUCTIONS
-

PM/EHSS Officer shall ensure that all work is undertaken in accordance with the specified work scope.

-

Safety training should be conducted to all personnel assigned at site prior to commence any work.

-

All personnel should know the locations of fire extinguishers, communications, manual alarms &

-

ESD points.

-

All personnel should be aware of assembly points, escape routes, emergency contact numbers.

-

Personal Protective Equipment (PPE) shall be worn at all times.

-

Good housekeeping shall be observed in work areas.

-

Construction wastes shall be segregated and disposed to an approved dump yard area.

-

Adequate lighting equipment when working night time.

-

Ensure all workers and equipments working overtime are properly accounted and obtained permit/approval
from Doosan EHS Manager prior to carry-on works.

-

Periodic refresher trainings, tool box talk and audit shall be conducted.

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