Ceramic Tiles, Terrazzo Tiles and Mosaics Method Statement

PROJECT: PROJECT NAME

SECTION:

FINISHING

DATE OF ISSUE

Dec. 2012

SUBJECT:

BY:

QA/QC ENGINEER

Ceramic Tiles, Terrazzo Tiles And Mosaics Method Statement

APPROVED BY:

QEHS MANAGER

ACTION

VERIFY

1.    SCOPE

This procedure outlines the system of control and inspections to be adopted for the fixing on site of tiles and mosaics.

2.    PROCEDURE

.1    A method statement shall be prepared and approved. It shall include:

i)    Acceptance conditions for laying e.g. maximum moisture content of substrate, levelness, soundness, cleanliness, environment.

ii)    Surface preparation and bonding e.g. bonding agent, bed mix proportions, adhesives.

iii)    Specific requirements with regard to setting out, alignment of joints and cutting.

iv)    Method of protecting finished work.

v)    Source documents for tiles, adhesive

.2    A sample of tiles shall be prepared on the wall in accordance with the specifications laid down in the contract and approved by the Consultant.

.3    Storage of tiles:

i)    Tiles shall be delivered to site palletised, on a clean hard surface free from contamination by mud or surface water.

ii)    Ensure that manufacturer’s instructions in respect of storage conditions of adhesives are strictly followed.

.4    The Project Director/Manager or his designate will confirm that materials are in compliance with contract specification requirements.

.5    In the case of internal wall tiling, work will not proceed until all concealed conduits, pipes, electrical cables and boxes etc. that penetrate the tiling have been fixed securely in position and making good is complete. Obtain written clearance from MEP Co-ordinator that all their works in that area is clear for taking up the tiling work.

Project

Manager

Project

Engineer

Store-

keeper

Project

Manager

Project

Engineer

Method

Statement

Sample

approval

Instructions

FINI/05/A

FINI/05/A

PROJECT: PROJECT NAME

Ref No. FINI/05

PAGE 2 OF 3

SECTION:

FINISHING

DATE OF ISSUE

Dec. 2012

SUBJECT:

BY:

QA/QC ENGINEER

CERAMIC TILES, TERRAZZO TILES AND MOSAICS

APPROVED BY:

QEHS MANAGER

ACTION

VERIFY

.6    Site operatives must observe the following while fixing tiles in addition to the specifications laid down in the contract document.

i)    In the case of internal wall tiles, the setting out course or layout course is established.

ii)    The level and events of the wall surface should not exceed the allowable tolerance as specified in the contract. Any such defect should be rectified before proceeding further.

iii)    While setting out for floor tiling, establish a datum level for the finished floor and control the overall level of the finished floor by means of series of spot levels. The Site Engineer will involve Consultant’s representative while fixing levels.

iv)    Avoid cutting tiles as far as possible. If cutting cannot be avoided locate cut tiles where they will be least noticeable, if in doubt refer to specification.

v)    The sequence of fixing tiles shall be as follows unless specified otherwise in the contract:

• Floor tiles – from the centre of room
  
• Internal walls – Upward from the setting out course up to the specified height (in case of false ceiling) otherwise from top and downwards up to starting level.
  
• External walls – always from top to bottom covering one horizontal strip after another but preferably to be done in bays.
  

vi)    The mortar or adhesive is spread on the surface using a trowel or blade in thin layers as specified.

vii)    Before placing the next tile take care to allow correct joint width by placing the correct spacers in all corner joints.

viii)    Do not start joint grouting work till tiles are properly fixed to the surface. Normally the time period varies between 24 hrs to 48 hrs.

.7    Protection and Cleaning:

i)    Protect external tiling and mosaics from rain and sun until the bed and joints have set. Continue the protection for the period specified.

Gen.

Foreman

Gen.

Foreman

FINI/05/A

FINI/05/A

PROJECT: PROJECT NAME

Ref No. FINI/05

PAGE 3 OF 3

SECTION:

FINISHING

DATE OF ISSUE

Dec. 2012

SUBJECT:

BY:

QA/QC ENGINEER

CERAMIC TILES, TERRAZZO TILES AND MOSAICS

APPROVED BY:

QEHS MANAGER

ACTION

VERIFY

ii)    Do not allow tiling and mosaics to be wetted in shower bath areas for the period as specified, until the bedding and joints have set and hardened.

iii)    Do not permit any traffic at all on the flooring till the tiles are set afterwards permit light foot traffic only.

iv)    For general protection spread white no-staining saw dust over the floor but not earlier than the period during which grout is hardened.