CHECKLIST FOR TERRACE WATERPROOFING (BRICK BAT COBA)

The following point should kept in mind during waterproofing work :


  1. Remove extra mortar accumulated on terrace and clean the surface clean with water.
  2. Fresh slurry is prepared by mixing cement with 1-2% super seal powder (acrylic based chemical).
  3. Leave sufficient margin (approx. 150mm) w/p from terrace door bottom level.
  4. Mark the levels on parapet wall all round.
  5. Provide rain water pipe outlet bend in correct position.
  6. Make available well burnt brick bats, properly soaked in water.
  7. Check for levels & proper slope towards, rain water pipe outlet.
  8. Fix the bricks & fill the joints of brick bats with C.M. 1:5  and maintain a slope of 1:150 with waterproofing compound.
  9. Proper round shape to the mortar near water pipe.
  10. Curing of brickbat coba for 7 days.
  11. Spread the cement mortar of 1:4 proportion along with waterproofing compound over brick bat coba.
  12. Apply cement slurry over the surface along with waterproofing compound for smooth finish.
  13. Mark lines on polished surface.
  14. Construct projected edge between the parapet & the watta on the next day.
  15. Clean & cure the final coat atleast 21 days by ponding 150mm high water, standing on it.

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