Method Statement For Installation of Roof Drain, Funnel Floor Drain & Flower Bed Drain.

1.0 PURPOSE

This method statement is applicable for Installation of Roof Drains, Funnel Floor Drains & Flower Bed Drains for the project as mentioned in the Approved Shop Drawings for Drainage System.

2.0 SCOPE

Supply & Installation of Roof Drains, Funnel Floor Drains & Flower Bed Drains in line with project requirements as indicated in the Approved Shop Drawings for Drainage System.

3.0 REFERENCES

• Latest Approved shop drawings for the required and applicable areas for  Drainage.
• Specifications
• Project Quality Plan

4.0 DEFINITIONS

• Main Contractor           :
• MEP Contractor           :
• PQP                             : Project Quality Plan
• PSP                              : Project Safety Plan
• QCP                             : Quality Control Procedure
• HSE                             : Health, Safety and Environment
• MS                               : Method Statement
• ITP                               : Inspection Test Plan
• QA/QC                        : Quality Assurance / Quality Control Engineer.
• ITR                              : Inspection and Test Request
• MVR                            : Material Verification Request
• MAR                            : Material Approval Request
• UPVC Class E              : Ultra polyvinyl chloride
• UPVC                          : Ultra polyvinyl chloride
• HDPE                          : High density polyethylene

5.0 RESPONSIBILITIES

Responsibilities for ensuring that the steps in this procedure shall be carried out are specified at relevant steps in the procedure:

• Project Manager
• Construction manager
• QA/QC Engineer
• Site Engineer
• HSE officer
• SK

5.1 Project Manager

• The work progress shall be carried out as per planned program and all the equipment’s required to execute the works shall be available and in good condition as per project planned.
• Specific attention is paid to all safety measures and quality control in coordination with Safety Engineer and QA/QC Engineer and in line with PSP and PQP.

5.2 Construction Manager

• Construction Manager is responsible to supervise and control the work on site.
• Coordinating with QA/QC Engineers, Site Team & Foremen for all activities on site.
• Control and sign all ITRs before issuing to Consultant approval.

5.3 Site Engineer

• The method of statement to the system shall be implemented according to the Consultant project specifications and approved shop drawings.
• Provision of all necessary information and distribution of responsibilities to his Construction team.
• The work progress shall be monitored in accordance with the planned work program and he will provide reports to his superiors.
• The constant coordination with the Safety Engineer to ensure that the works are carried out in safe working atmosphere.
• The constant coordination with the QA/QC Engineer for any works to be carried out and initiate for the Inspection for the finished works.
• He will ensure the implementation of any request that might be raised by the Consultant.
• Efficient daily progress shall be obtained for all the equipment and manpower.
• He will engage in the work and check the same against the daily report received from the Foremen.
• The passage of all the revised information to the Foremen and ensure that it’s being carried out properly.

5.4 QA/QC Engineer (MEP):

• The monitoring of executions of works at site and should be as per the approved shop drawings and project specifications.
• Ensure ITRs and MVRs are being raised for activities in timely manner and inspected by the Consultant.
• He will follow and carried out all the relevant tests as per project specifications.
• Obtain the required clearance prior to Consultant’s inspections.
• Should acquire any necessary civil works clearances and coordination.
• One who will assist the Consultant Engineer/ Inspector during Inspection.

5.5 Site Foreman

• The carrying-out of work and the proper distribution of all the available resources in coordination with the Site Engineer on a daily basis.

• Daily reports of the works are achieved and coordinated for the future planning with the Site Engineer.
• Incorporate all the QA/QC and Safety requirements as requested by the concerned Engineer.
• Meeting with any type of unforeseen incident or requirement and reporting the same to the Site Engineer immediately.

5.6 Safety Officer

• The implementation of all safety measures in accordance with the HSE plan and that the whole work force is aware of its proper implementation.
• The implementation of safety measures is adequate to maintain a safe working environment on the work activity.
• Inspection of all the site activities and training personnel in accident prevention and its proper reporting to the Construction Manager and the Project Manager.
• The site is maintained in a clean and tidy manner.
• Ensure only trained persons shall operate the power tools.
• Ensure all concerned personals shall use PPE and all other items as required.
• Ensure adequate lighting is provided in the working area at night time.
• Ensure high risk elevated areas are provided are barricade, tape, safety nets and provided with ladders.
• Ensure service area/inspection area openings are provided with barricade, tape, and safety nets.
• Ensure safe access to site work at all times.

5.7 Store Keeper (SK)

• Responsible for overall Store operations in making sure to store the material delivery to the site and keep it in suitable area that will keep the material in safe from rusty and damage.
• One who will acknowledge the receiving of materials at site in coordination with QA/QC & concerned Engineer.

6.0 EQUIPMENTS

Following tools shall be arranged before starting the job.

1. Tool Box.
2. Measuring Tape.
3. Hack Saw Blade
4. Spirit Level
5. Electric Drill Machine
6. Step Ladders
7. Excavator
8. Solvent Cement
9. Electric welding machine. (if required)

7.0 PROCEDURE

Work Sequence/Procedure

7.0 General Requirements

• All the materials received at site shall be as per the approved technical material submittal Roof Drains, Funnel Floor Drain & Flower Bed Drain & to be inspected upon receipt & approved by the engineer prior in proceeding with the installation through MVR. Any discrepancies, damages etc, should be reported to the supplier for rectification or replacement & to be removed from site immediately.
• All construction/inspection/testing works shall be carried out in accordance with specifications & to be done by qualified Mechanical Engineers and shall be checked and approved by MEP Subcontractor Construction Manager along with QA/QC Engineer.
• Contractor has to clarify the procedure for material delivery to the site through consultant Engineer at site.

 7.2 Handling

7.2.1 Material Transport/ Delivery

• During transportation ensure that the materials are in a box or at least covered with plastic. Do not drop the materials especially on hard surfaces. This is particularly important as the materials might be broken or some paint damages will occur.
• Where ever possible the loading and offloading of the drains shall be carried out by hand.
• When required or necessary, forklift shall be used in unloading the materials.

7.3 Storage

   7.3.1 Storage on site

• Drain Materials should be stored on a flat dry level surface free from liquids & pointed or sharp objects likely to cause rusting & scratches. Timber supports is much likely recommended used to support the materials or shall be stored on a higher elevation.
• Materials which are outside the box shall be covered with plastic or canvas to avoid any expsoure to sunlight which will cause deterioration of paint or color of the drains.

7.4 Sequence of installation for Drains:

7.4.1 Safety

• All site safety rules & regulations shall be complied with.
• Supervisors will deliver tool box talks, relevant to this installation, to all operatives involved in the installation, and recorded.
• All operatives will be equipped with minimum personnel protective equipment; hard hat, coveralls, safety boots, safety glasses.
• The persons using cleaning fluid and solvent cement have to wear hand gloves.
• All operatives fully understand the method of installing floor drains.

7.4.2 Pre- Installation Procedure

• Before commencement of installation activity, the supervisor must ensure that:
• Permission to start or Civil Clearances prior to installation has been given by the main contractor.
• Materials necessary for the installation have been inspected & approved by the Engineer. 
• All relevant Shop drawings for Drainage System in the relevant area have been approved by CONSULTANT.
• Necessary openings in the floor are provided as per the approved builders work drawing.
• Scaffolding if necessary for installations are correctly built, safe & suitable for the purpose.
• Floor Finish level and finish data are available to coordinate drain installations.

7.4.3 Installation Procedure

• Select the correct type and model of Drains as per the approved material submittal.
• If necessary or required, mock-up will be installed and approved by CONSULTANT prior to further installations.
• Install the drains at the opening position as indicated on the approved Drainage System Shop Drawings (Details of Installation) below the slab level with respect to the pipe level shown in the drainage working drawing. Surveyor marked locations, from civil drawings will be followed for this.
• Fix supports in position as per support details in the approved working drawing; ensure that all fixings are secure.
• Extend drains inlet, minimum 100 mm above the structural finish level with the approved uPVC pipe material. The extension pipe to be glued to the gully trap with solvent cement.
• Recheck the position of installed drains and Extension pipes before pouring concrete.
• All inspections shall be inspected and signed off by CONSULTANT prior to pouring concrete.
• The water proofing membrane will cover the extended pipe. The civil contractor to ensure that water proofing is done as per approved method statement.
• The Floor Grating will be fixed once screed is cast by using a spirit level. The Floor Grating body is having the outlet connection matching with the internal diameter of uPVC drain pipe.

8.0 ATTACHMENTS

• Inspection & Test Plan                                              
• Check Sheet                                                
• Risk Assessment