Cement concrete flooring not laid within 48 hours of laying of cement concrete sub-base. In case of lime concrete sub- base, cement concrete flooring is to be laid after 7 days and not later than 10 days.
Surface of sub - grade is not roughened with steel wire brushes.
Cement slurry not applied at 2 kg per sq.m either to sub- grade or to RCC slab before laying the flooring.
Concrete of floors not beaten up to get the cream of mortar.
Thickness of flooring laid is less than what is specified.
Sprinkling the dry cement or mixture of sand and cement to absorb excessive moisture.
Curing not done for a minimum of 10 days.
Overlapping of edges of panels.
Sometimes, tiles/ stones are laid on a bed of dry mortar, this will result in flooring sounding hollow when tapped with a wooden mallet. Some tiles working loose and there may be no bond between the stone/ tiles and the sub- grade or RCC slab.
Finishing slope not properly done especially in kitchen, bathroom and balconies. Sometimes, slope provided in the reverse direction.
In case of marble chips flooring, it is not laid between 18 to 24 hours after the laying of under layer.
Flooring should confirm to IS: 777 and terrazzo tile flooring confirm to IS: 1237.
Terrazo Tile Flooring:
Thickness of tiles not as specified.
Tiles do not have required transverse strength.
Thickness of bedding mortar less than 10 mm.
Cement slurry not applied @ 4.4 kg/sq.m before laying tiles.
First grinding of tiles not done in factory before delivering at site.
Marble/ Kota Flooring:
Average thickness of bedding should be 20 mm and not less than 12 mm at any place.
Cement slurry not applied @ 4.4 kg. Per sq. m. over the bedding mortar before laying stone slabs.
Thickness not as specified.
Daddooing/ Skirting:
Dadoo not flushed with well wall plaster or not projecting uniformly by 6mm from the wall plaster.
Dadoo not laid along with border or adjacent floor panels.
The joints in the dadoo/ skirting not kept true and straight in continuation of the line of joints in borders or adjacent panels.