Method of Statement for Raised Access Floor.
The method statement shall be briefed to all appropriate
operatives to ensure that they are aware
of the work sequence and of any project specific requirements.
General.
Prior to works commencing, the Site Engineer shall ensure
that the following activities have been
completed and signed-off by the Consultant.
Drawing must be approved for construction by the
Consultant.
The Site Engineer shall ensure that the necessary Statutory
Authorities approvals have been received.
Material
- Raised Floor Calcium Sulphate Panel Round Head Pedestal FFH-500mm.
- Stringer
- GI Through Bolt Anchor
- GI L-Angle
Setting Out and Installation Procedure.
The installation may only be started if the admissible
climate for the installation is reached, and the façade is closed.
The subfloor must be dry, even, solid as well as free of
cracks, craters, and chemical substances (Grease, oil). The overall drying must
be insofar as that no considerable shrinking must be expected anymore.
We generally recommend providing the subfloor with a dust
Proof-binding paint to guarantee a proper gluing of the pedestals. The subfloor
must be broom-cleaned or otherwise vacuumed.
The subfloor must be sufficiently resistant to abrasion. Any
floated-up layers of fine mortar or loosely adherent parts must be removed
before installation.
The subfloors must be sufficiently load-bearing and to be
able to take up all occurring loads. The subfloor must be within the levelness
tolerances accordingly.
The room must be checked on rectangularity to avoid small
cut panels.
The floor areas must be sectioned respectively arranged
sensibly before the start of the installation and make sure pedestal should not
collide with cable tray or other existing service.
Co-Ordination with MEP team to avoid bridges and pedestal
marking reference line to be given before proceeding the installation.
Cut resp. cut-out panels are generally to be supported
sufficiently with pedestals and/or profiles.
A sealing tape (wall connection tape) must be provided at
all rising building elements wherever it is required to be used.
Turn around the pedestal and place it at reference point.
Level pedestal to the required height with a levelling instrument (hose
levelling instrument, levelling device, laser or similar).
Attention: Consider the thickness of the panel!
Let pedestal dry acc. to the information of the manufacturer of the pedestal glue.
Compensate large unevenness by means of wedges.
Adjustment of the raised floor pedestals for the first
raised floor panel.
Install the further two raised floor pedestals with the
required grid dimension and level the pedestals to height by turning the
adjustment nut.
Unroll wall connection tape wherever required and glue it
with the adhesive side flush to the upper edge of the raised floor panel (on
two sides with corner panels).
Cut the wall connection tape acc. to the edge length of the
panel.
Place reference raised floor panel on the installed raised
floor pedestals.
Install pedestal at the yet unsupported corner.
Adjust pedestal on height with adjustment nut.
Check and eventually adjust reference panel in both directions with the raised floor water level.
Check again the levelling on height to the
reference point and readjust at the pedestal if necessary.
Setting up a line for the installation of the first row of
panels parallel to the wall resp. to the first panel.
Checking of the alignment of the line.
Install further raised floor pedestals and panels of the
first row.
Check and eventually adjust the installed panel with a raised floor water level in both directions.
Compensate possible panel tolerances with aluminum pads.
Measure the size of the cut panels to determine the required panel format respectively.
Mark the
required dimension of the cut panel on the raised floor panel and the required
cutting line.
Putting in the cut panel carefully and with slight pressure
into the raised floor grid.
Check panel on proper seating, shifts in height, height
tolerances and eventually adjust.
Secure pedestals against height displacement.
Insert stringer at pedestal head.