Method of Statement Template for Marble Installation.
Purpose of the method of statement.
The scope of this method of installation covers the
application of marble and granite works
(i.e. floor and wall cladding). The purpose of the documentation mentioned in this statement is to ensure that
the quality control objectives are
maintained, and accurate records are established for the said scope of works. The objective is to ensure that the construction plan is executed,
controlled, and documented in compliance
with the approved shop drawings, ensuring safety, perfection and durability.
Work Description.
The work includes Flooring installation of natural stone on
the interior and exterior area with desired dimension and finishing conforming
to the approved shop drawings.
The work includes cladding (wet fixing) of natural stone on
external walls and all other areas – interior and exterior cladding with
desired dimension and finishing conforming to the approved shop drawings.
The work includes cladding (mechanical fixing) of natural
stone on external walls and all other areas – interior and exterior cladding
with desired dimension and finishing conforming to the approved shop drawings.
Standard accessories used in stone cladding include metallic
fasteners of required grade of stainless steel. Adhesives of approved make and
quality are used to secure the fasteners and the holes and cuttings in the
stone made for fasteners.
Delivery, storage, and handling.
Stone will be packed in pallets of wooden strips with
padding and plastic covers to prevent breakage, scratches, and damage to stone
during transit/shipment.
Stone will be carefully handled and stored separated by
wooden strips to prevent breakage,
staining or other damage.
Stone slabs will be kept in vertical position to prevent
contact with earth surface.
Installation.
Marble flooring installation.
Site must be clean and free from other construction
materials.
All materials will be cut from factory as per size
requirements, unless otherwise needed to be cut at the site.
Establishing of floor levels in terms of finished floor line
is to be provided by main contractor/consultant.
Laying out for markers, lines and levels will be done
together with our site engineer and foreman and to be checked and approved by
the main contractor’s engineer to proceed. Starting point of installation will
be our responsibility.
Compacted sand and cement mixture will be laid with a
maximum thickness of 10cm. (sand and cement will be provided by the main
contractor, unless otherwise mentioned).
All materials for flooring installation will be subjected to
waterproofing agent application before installation.
Liquid slurry / liquid cement will be applied on both
materials and compacted sand with cement prior to installation.
Checking of level will be done at least in two different
directions to ensure its accuracy.
Rubber hammer will be used in acquiring the correct level so
as not to damage the materials.
Zero gaps will be always observed and a maximum of 0.2mm gap
tolerance.
Flooring pattern (Water jet-cut) are to be cut and
pre-assembled (for small parts) in the factory.
Methods will be done repeatedly until completion of a
certain floor area.
Cleaning and grouting.
Wall cladding installation (mechanical fixing).
Site must be clean and free from other construction
materials.
All materials will be cut from factory as per size
requirements, unless otherwise needed to be cut at the site.
Wall guidelines are to be placed to ensure the plumpness and
verticality (unless specified to be inclined) of wall cladding.
Marble and granite wall cladding are only to be installed on
reinforced concrete and or concrete blocks to carry the weight of the
materials(unless necessary ).
High strength expansion bolts are to be inserted on
concretes at least 4cm deep, a minimum 4 mechanical bolt/angles are to be
provided per piece of the cladding (depending on the sizes).
Cladding materials are to be cut with grinder (rear side) at
least half of the thickness of the materials for which the steel angles are to
be inserted. Ahigh mixture of glue and hardener is to be placed prior to
installation.
Rubber hammer will be used in acquiring the correct
plumpness so as not to damage the materials.
Verticality (unless specified to be inclined) and plumpness
are to be checked at every piece of cladding being installed.
Zero gaps will be always observed and a maximum of 0.2mm gap
tolerance (unless specified with gaps, grooves, and chamfer).
Methods will be done repeatedly until completion of a certain
wall area.
Cleaning and grouting.
Wall cladding installation (wet fixing).
All under laying installations shall be approved by the
CONSULTANT prior to start of tiling works (Ensure the MEP clearance
obtained).
Working area to be restricted for unauthorized entry.
The surfaced to which marble tiles are to be fixed shall be
thoroughly dry before fixing commences and free from all defects.
The areas to be tiled shall be brushed clean and all traces
of grease, oil, loose particle etc. must be removed.
Ensure that the laying of tiles shall be as per the
direction and pattern in approved shop drawings.
Before laying tiles obtain approval of setting out by
CONSULTANT. Provide symmetry about
center lines of the space or areas and adjust to minimize tile cutting.
Lay out tile work so that the tiles less than ½ full size do
not occur and with the minimum of cutting.
Carefully grind edges of cut tile.
Ensure cut tiles are in corners and are equal on each wall face.
Workmanship.
For concrete block walls and concrete walls to be finished
with tile, apply a leveling coat of plaster minimum 12 mm thick, sufficient to
cover the unevenness of the substrate and to make walls true vertical.
Plaster shall be finished rough in order to have a strong key
for tiling works.
Plaster curing period shall be completed before start of
tiling work.
To ensure rows of tiles are truly horizontal, a level line
shall be established to position the starting course.
Tiles of specified and approved sizes shall be fixed to wall
surfaces by approved adhesive.
Mixing adhesive shall be strictly followed in accordance
with manufacturer’s recommendations.
Mortar shall be used within 2 hours of mixing at normal
temperatures or within the pot life of the mix whichever is achieved
earlier.
Material shall not be used after initial set has taken
place.
Apply floated coat of adhesive to dry background and comb
the surface with the recommended solid bed towel. Fill any keys and apply thin even coat of
adhesive over the entire back of each tile.
Press tiles onto bedding with twisting/sliding action to give finished
bed thickness within the range recommended by the manufacturer.
Tamp the tile with rubber mallet to obtain required adhesion
and level.
Lay tile to pattern in accordance with Shop Drawings. Verify
pattern is uninterrupted through openings.
Establish lines of borders where applicable.
Excessive mix/adhesive shall be removed with a damp cloth
before the material has set.
Cleaning and grouting.
Supervision.
Installation is carried out by the experienced and competent
masons who have expertise in dry fix process. They are assisted by unskilled
laborers. Their work is in turn supervised by experienced Foremen. Site
Engineer will be available for co-ordination with other sub-contractors and
Main Contractor and to investigate the technical aspects. He will ensure that
the overall work conforms to the shop Drawing.
Machinery and tools.
- Stone Cutting Machines of different sizes.
- Grinding machine of different sizes.
- Drilling machines.
- Toolbox containing spirit level, measuring tape, water level, right angle, plump etc.
Safety procedures.
All standard Health, Safety & Environment norms will be
adhered to strictly.
All the workmen will wear overalls, safety shoes, goggles,
hand gloves and helmets. Adequate lighting and ventilation will be ensured
during installation.
It will be ensured that machinery and tools used are safe
and always in good condition. Where applicable only calibrated tools will be
used.
Markings will be made on the wall by setting plumb to
determine the exact locations.
Also, you can review Checklist Template for Marble Installation Work.