Construction Board
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Window Grill Fabrication Work - Standard Operating Procedure
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External Painting Work - Standard Operating Procedures
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Internal Painting Work - Standard Operating Procedures
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Flooring Work - Standard Operating Procedure
Flooring
Introduction:
This standard operating procedure enumerates the scope of Tiling work to be executed in Tower area as specified in the approved drawings and at places when instructed by the Tower-in-charge.
Responsibility:
The respective Tower-in-charge is responsible to execute the work as per procedure.
Safety & protection:
PPEs like safety belts at height, helmets, safety goggles and ear plugs etc. should be used properly.
Ensure the working area is kept clean for easy access.
Proper illumination to be provided during the work, if required.
Educate the workmen through pep-talk meeting.
Flooring:
Preparatory Works:
Remove all materials stuck on slab top and concrete protrusion.
Clean slab top with broom and water jet.
Mark the reference level on walls usually at 600mm from FFL (Level should be transferred to all flats from Staircase and lift entrance level).
If conduits to be fixed on floor due to choking or customer changes at later stage, it should be fixed on floor with saddle clamps and additional clamping to be done at wall and floor corner area.
Do mortar bed in 1:8 proportion as per reference level. Bed thickness should be 40mm and it should not be less than 25mm.
It is important to set the tiles according to approved tile setting out drawing.
Do check for feasibility of fixing skirting in line with wall finish face, in case skirting cant be fixed in line with wall face, it should be brought to the notice prior commencement of flooring and correction or corrective measure should be taken.
Fix the Kitchen Platform verticals over floor as per drawing and make sure they are embedded in wall by 2 (In case of conventional Kitchen Platform). Ensure the top of vertical is in level and as per specified height in approved drawing.
Do checked tiles received for flooring are of correct specification as per approved drawing.
Do fix first tile in dry with 10mm in from wall face as per start point. Fix the two more tiles at two corners of wall and check the line, level and right angle.
Do fix tiles in between these tiles and check the layout.
Tiles should be fixed either tight joint or with spacer as specified in Approved tile set out drawing.
For cutting tiles diamond cutting blade shall be used.
Work Method:
After finding the layout satisfactory, then fix the start tile with cement slurry of required consistency and level it with the help of wooden mallet.
Do fix tiles at the end of both walls and check its alignment and level.
Fix tiles in between these tiles with cement slurry and check the line level alignment.
Do fix tiles by rows parallel to set out and check for line and level after fixing each tile.
After completion of flooring it is important to keep human traffic away from them. When the tiles appear firm enough, usually after 3 hours, they should be cleaned thoroughly with sponge to avoid staining on tile surface.
Post Flooring:
After 3 hours do check the flooring for consistent color tone.
Surface should be even and level.
Lippage if more should be adjusted by tamping with rubber mallet or by keeping some weight on it.
From distance of 1.5 meter no chips, cracks and other visible damages shall be seen.
After finding work to satisfactory level skirting fixing should be started.
Skirting shall be fixed in line with wall finish face.
Skirting back shall not show a voids / pockets behind.
Ensure skirting tops are at same level and there is no gap between skirting and flooring.
In case of spacer joint fill the joint with cement paste and rack it properly to ensure uniform grout application on top of it.
Do cure the flooring for minimum 3 days.
Protect the floored area with bubble guard sheets.
Team
CBEC India
Dec 4, 2021
Granite Framing for Door and Window - Standard Work Procedure
Granite Framing
Introduction:
This standard operating procedure enumerates the scope of Tiling work to be executed in Tower area as specified in the approved drawings and at places when instructed by the Tower-in-charge.
Responsibility:
The respective Tower-in-charge is responsible to execute the work as per procedure.
Safety & protection:
PPEs like safety belts at height, helmets, safety goggles and ear plugs etc. should be used properly.
Ensure the working area is kept clean for easy access.
Proper illumination to be provided during the work, if required.
Educate the workmen through pep-talk meeting.
Preparatory Works:
Do check opening size and its right angle.
If any correction needs to be done it shall be done prior commencement of work.
Do cut the frame members from single slab of granite to ensure the uniformity of visual effect.
Edges of frame members cut from slab should be polished / chamfered as specified in approved drawing.
Frame shall have a 450 chamfer joint on all visible corners of frame.
With the help of Resin hardener adhesive make the back of frame rough to ensure bonding with bedding mortar. Apply resin hardener adhesive on back of granite and sprinkle sand on it to form a key.
Make two holes in staggered on each vertical member for fixity .
Granite frame fixing:
Frame should be fixed in position according to approved drawing and as per adjacent finishes.
Full thickness of frame should be visible from all side for window and from sides and top for door frame.
With cement mortar of 1:4, fix the verticals of frame in position and check for its alignment with keeping top and bottom member in place.
With the help of resin hardener fix the top member in place.
Do fill void above top frame member with cement mortar.
Fix the temporary supports to members to ensure no de-bounding in later stage.
Cure the mortar for minimum 7 days.
After 3 days fix the Pentagon nylon frame fixing screws 10 x 125 mm and recheck the verticality. Screws should be counter sunk by 5mm.
Do apply light coat of clear oil on granite face for protection.
After first coat of paint, fill the screw hole with Tmax and matching grout mix.
Post Frame work:
Do check for opening dimensions, line, level and plumb.
Do check corner joints and granite to granite joint, there should not be any gap.
Do check for any visible defect.
Team
CBEC India