Method Statement for Gypsum Board Suspended Ceiling System

TOP BUILDERS INTERNATIONAL CO. LTD. 得寶國際有限公司

Method Statement For Gypsum Board Suspended Ceiling System

Project: Venetian Macau in Cotal, Macau Re: Work Package 5115 (Top Builders), Prefabricated Bathroom Revision: B Date: 2006/06/16

Method Statement for Gypsum Board Suspended Ceiling System

Table of Content

Content

…………..

2

Introduction

…………..

3

Relevant submission

…………..

3

Installation of suspended ceiling system

…………..

3-4

Preparation work

…………..

3

Concerns

…………..

3

Ceiling Installation

…………..

4

Cornice Installation

…………...

4-5

Appendix

…………..

i - ii

Page 2 of 5

Method Statement for Gypsum Board Suspended Ceiling System

Scope of work Trade contractor of this project will be responsible for the execution of the work in accordance with the specifications and relevant approved documentations. The scope of work includes supply and installation of proposed gypsum board suspended ceiling system including proprietary KIRII SD-19 (Standard) System with W-Bar, C-38 Channel, Hanger, W-Clip, Z-Bracket and Bolt and moisture resistant board (MR - GypBoardTM) at the L33 to L37 tower suite bathroom areas.

Relevant submission • •

Material Submission of the KIRII SD-19 (Standard) System including samples and catalogue. Material Submission of the GypBoardTM including samples and catalogue.

Installation of suspended ceiling system •

Preparation work 1. Site Cleaning 2. Site surveying and setting out 3. Erect working platform if necessary and according site safety regulations.

•

Concerns 1. Checking Ceiling Level Before installation work starts, check and ensure at least 4-in. minimum clearance for installing ceiling panels. 2. Working at Height Working platform will be provided if higher than 2m and erected by experience competent worker and inspected by the appointed professional person signing and certifying Form 4 & 5 before use and re-inspection within 14 days. 3. Obstruction When hanging the main tees, if the hanger wire holes are not accessible, due to duct work, lighting, or other site works, using the convenience holes for the hanger wire.

z

Ceiling Installation 1. Mark the ceiling height on the surrounding walls according to the reference line given by the Main Contractor.

Page 3 of 5

Method Statement for Gypsum Board Suspended Ceiling System

2. Mark carrying channel (C-38 channel) by stretch a string across the room at ceiling height. 3. Installation of the 8mm diameter threaded suspension, fixed by using Z-Bracket to the ceiling slab. Spacing of suspension both must be at 1200m max. in either direction and at perimeter of ceiling as required. 4. The C-38 channel must be placed at 1200mm Max. shall be hung to the lower part of the suspension bolts by means of galvanized steel hangers and nuts. 5. The W-Bar at a spacing of 400mm Max. shall be fixed to the C-38 channel with W-Clips at each intersection. W-Clips must as a rule alternate with the sides of the carrying channel. 6. Rigid and aligned system for the fixing of ceiling board must be provided with separated pieces of C-38 channel and W-Bar to be jointed by channel joint and double joint respectively. 7. Extra hangers to be provided where opening are required for light fittings and access panels. 8. All components must be well fixed and the suspension system must be correctly aligned and accurately leveled before attaching the ceiling board. 9. The gypsum board shall be fixed by screws at 300m Max. to the W-Bar with long edges of the gypsum board placed parallel to the W-Bar. 10. Finish of all joints and screw heads with joint tape and joint compound must be in accordance with manufacturer's instruction which shall be approved by the Architect’s consultant. 11. Primer and Painting works can be proceeded after completion of gypsum board installation. 12. Details of Step 10 and 11, please refer to the Method Statement for Painting. z

Cornice Installation 1. Before commence the installation, ensure the wall and ceiling surface is sound and free from any material i.e. wallpaper, loose or flaking paint or plaster within the operation area. 2. For the large cornice, screwing fixing is necessary.

Page 4 of 5

Method Statement for Gypsum Board Suspended Ceiling System

3. Measure the cornice length required and mark wall edge of moulding before screw fixing. Leave enough moulding length beyond the wall edge mark to allow for external mitre cuts. 4. As cutting the mitre in the corner angle, the mitres must be marked out and cut for each individual corner. 5. After cutting the cornice to be proper size, screw casting to wall and ceiling. 6. Fill, joints and screw holes first Herculite Fibrefix. Once the Fibrefix has set finish off the joints and screw holes with plaster, allow to dry and sand smooth.

Page 5 of 5

Review No.

B

Date:

HAZARD IDENTICATION SHEET

16-06-02006

Page 1 of 3

Project:

Venetia Cotai, Macau – Prefabricated Bathroom

Work Package Code:

Subject:

Gypsum board Suspended Ceiling System

Analysis by:

Location:

Hotel Tower

Item

Job Task

1

General works

2

Drilling

Hazard Personal injury

eye injury Noise nuisance Body Injury

People Affected worker and affected people nearby

worker and affected people nearby

Cause of Hazard

-

Lack of site safety knowledge

-

Inappropriate use of PPE

-

Defective electric tools being used.

-

Worker did not wear and use PPE

-

Edward Leung

Worst Harm Due to Hazard Severely injured

Fatality

Existing Control Measures

-

Worker should attend Safety Induction Training provided by GAMMON.

-

Provided appropriate PPE as job required.

-

Keep minimum stock of PPE to be maintained for issuing.

-

No patent defect on the electric tools to be used. Appropriate electric tools shall be selected. Monthly inspection of the tools by registered electrician. Fence off the working areas to prevent unauthorized entry. Ensure the workers Wear long sleeve Protective cloths & safety boot Safety gloves & eye protector.

-

No Warning sign

-

3

Manual handling and transporting of material

Twisted , slipping, tripping, hit by objects Muscle strain During manual handling

workers

-

Using improper lifting method to handle goods

Severely injured

WP 5115 (Top Builders)

-

-

poor housekeeping

-

-

Worker did not wear and use PPE

-

Provide pre-work body exercise to minimize the risk of injury Wear long sleeve safety shoes to protect the ankle and foot. Use the mechanical equipment if possible. Always keep the workplace dry and tidy.

Remark

Review No.

Item 4

B

Date:

Job Task Materials

HAZARD IDENTICATION SHEET

16-06-02006

Hazard Fire

storage

5

Ceiling Installation

Collapse of working platform

6

Ceiling installation

Fall of person at height

People Affected worker and affected people nearby

Cause of Hazard

Page 2 of 3

Worst Harm Due to Hazard

-

Poor Housekeeping

Fatality

-

Smoking at the workplace and storage yards.

-

Insufficient Ventilation

worker and affected people nearby

-

Platform erected by non-experience competent workers.

Serious injury

worker

-

Inadequate platform being used by workers.

Fatality

-

Workers did not wear and use PPE.

Existing Control Measures

- Flammable materials and goods must be kept away from the workplace. - Provide fire extinguishers at the workplace and storage yards. - Clean all the rubbish, paper, scraps all the time. - Display “no smoking’ signage and no smoking is allowed at the workplace. - Adequate ventilation - Appointed Registered professional inspect and sign for the workability of working platform of height above 1.8m. -

200mm high toe-board and fence at 450mm and 900mm to be installed. Prohibit to move the working platform if any worker on it.

Remark

Review No.

Item 7

B

Job Task Ceiling installation

Date:

HAZARD IDENTICATION SHEET

16-06-02006

Hazard Falling objects from the working platform

People Affected Worker and affected people nearby

Cause of Hazard

-

Worker working under the working platform.

Page 3 of 3

Worst Harm Due to Hazard Severely injured

Existing Control Measures

-

Working platform should be closely planked with 200mm toe-board equipped.

No Warning sign -

No other works shall be carried out under the activities that are working above.

-

Chain block shall be used to the materials that are heavy in weight and large in size.

-

Fence off the working area with barrier and notice / warning sign should be provided.

Remark

Review No.

B

Date:

Works Related Projects/Department: Type of Activity Operation: Location:

Hotel Tower

Item

Risk

1

2

Personal injury

Worker should attend Safety Induction Training provided by GAMMON.

-

Provided appropriate PPE as job required.

-

Keep minimum stock of PPE to be maintained for issuing. No patent defect on the electric tools to be used. Appropriate electric tools shall be selected. Monthly inspection of the tools by registered electrician. Fence off the working areas to prevent unauthorized entry. Ensure the workers Wear long sleeve Protective cloths & safety boot Safety gloves & eye protector. Provide pre-work body exercise to minimize the risk of injury Wear long sleeve safety shoes to protect the ankle and foot. Use the mechanical equipment if possible. Always keep the workplace dry and tidy.

-

Noise nuisance

-

Body Injury Muscle strain During manual handling

Note:

-

Probability or Likelihood Rating: Consequence Rating: Risk Level:

Almost Certain ( 5 )

Page 1 of 3

Works Related Projects/Department Code:

Prefabricated Bathroom

-

eye injury

Twisted , slipping, tripping, hit by objects

Venetia Cotai, Macau

Existing Control Measures

-

3

RISK ASSESSMENT SHEET

16-06-2006

Analysis by:

Edward Leung

Rating of Harm 1

2

Risk Level3

Recommended Action

Probability

Consequences

3

1

3 (Green)

2

3

6

2

WP 5115 (Top Builders)

2

Probable ( 4 )

Possible ( 3 )

Very High ( 5 )

High ( 4 )

( RED )

( ORANGE )

Safety Induction Training, Specific PPE required

Specific PPE required

(Green)

Training required

4 (Green)

Morning Pre-work exercise

Remote (2 )

Impossible (1)

Medium ( 3 )

Low ( 2 )

Very Low ( 1)

( YELLOW )

(GREEN)

Remark

Review No.

Item 4

5

6

Note:

B

Risk

Date:

RISK ASSESSMENT SHEET

16-06-2006

Existing Control Measures

Fire

- Flammable materials and goods must be kept away from the workplace. - Provide fire extinguishers at the workplace and storage yards. - Clean all the rubbish, paper, scraps all the time. - Display “no smoking’ signage and no smoking is allowed at the workplace. - Adequate ventilation

Collapse of working platform

- Appointed Registered professional inspect and sign for the workability of working platform of height above 1.8m.

Fall of person at height

- 200mm high toe-board and fence at 450mm and 900mm to be installed. - Prohibit to move the working platform if any worker on it.

Probability or Likelihood Rating: Consequence Rating: Risk Level:

Almost Certain ( 5 )

Page 2 of 3

Rating of Harm 1

2

Risk Level3

Recommended Action

Probability

Consequences

1

5

5 (Green)

Fire equipments Training, Specific Training

3

3

9 (Yellow)

Specific Training

2

4

8 (Yellow)

Specific Training & Safety Harness required

Probable ( 4 )

Possible ( 3 )

Remote (2 )

Impossible (1)

Very High ( 5 )

High ( 4 )

( RED )

( ORANGE )

Medium ( 3 )

Low ( 2 )

Very Low ( 1)

( YELLOW )

(GREEN)

Remark

Review No.

Item 7

B

Date:

Risk Falling objects from the working platform

RISK ASSESSMENT SHEET

16-06-2006

Existing Control Measures -

Working platform should be closely

Page 3 of 3

Rating of Harm 1

Probability

Consequences

4

2

2

planked with 200mm toe-board

Risk Level3

Recommended Action

8 (Yellow)

Specific Training & Safety Harness required

equipped. -

No other works shall be carried out under the activities that are working above. Chain block shall be used to the materials that are heavy in weight and large in size. Fence off the working area with barrier and notice / warning sign should be provided.

Note:

Probability or Likelihood Rating: Consequence Rating: Risk Level:

Almost Certain ( 5 )

Probable ( 4 )

Possible ( 3 )

Remote (2 )

Impossible (1)

Very High ( 5 )

High ( 4 )

( RED )

( ORANGE )

Medium ( 3 )

Low ( 2 )

Very Low ( 1)

( YELLOW )

(GREEN)

Remark