Precautions and care to be taken during waterproofing work.





  • Ensure that all the material used is of a good quality.
  • Ensure that the socketing is done before the base coat work.
  • Ensure that there is no leakage from the bath/w.c. slab once the socketing is done.
  • Ensure that the traps and release pipes are fixed properly before the brickbat coba coat.
  • Ensure that all the brickbats are well soaked in water, before use.
  • Ensure that all brick bats are placed on the edge and not flat.
  • Maintain proper gap between the brickbats.
  • Check the slope of the brickbat coat towards the trap.
  • Ensure that water-proofing compound is mixed in the mortar for every stage of work.
  • The top coat should be carried out in one stroke without any joints.
  • Ensure proper finishing near traps and spouts.
  • Ensure that the mouth of release pipe is well tied with piece of chicken mesh and a ghamela of metal is spread over it for maintaining the porosity.
  • Check each stage for leakage by flooding it with water.
  • Cure the water-proofing without interruption.
  • Ensure that 30 cm x 30 cm (1’0” x 1’0”) squares are marked with line dori on terrace water-proofing.
  • Check that waterproofing of the terrace is cured with the pounding method.
  • Ensure that all the joints of traps and w.c. pan are sealed properly before filling the gap with brick bat coba.
  • Ensure that a hole is made in the wall for release pipe and the drainage outlet is waterproofed before fixing the pipes.
  • Ensure that vertical waterproofing over dado is continued upto a sufficient height.
  • Ensure that watta is made immediately the next day and cured properly.
  • Ensure that the rough Shahabad dado is in plum, for box treatment of waterproofing.
  • Ensure that the gap between vertical wall and Shahabad dado is fully grouted with cement slurry.
  • Ensure that the vertical Shahabad dado is plastered in C.M. 1:4.
  • Ensure that the peripheral area of the basement/underground water tank is refilled with hard, porous material for easy drainage of the rain water/ground water.