“TOP” DRAIN is one of the best means of connecting to an outlet drain. Its dimensions conform to UNI EN 1451-1, and it fits to bell and spigot jointed pipes without using adhesive. “Top” drain is particularly suited for use in low pitch roofs, under roof gardens, inverted roof systems and tiled roof areas. Fixing and fastening to the waterproofing material is by a threaded ring which allows applicator to use it with various types of waterproofing membranes.



  1. “TOP” drains can be used with all types of waterproofing membranes.
  2. Accessories supplied with “TOP” drain allow it to be used in virtually all applications.
  3. Quick and easy installation often halving installation times.
  4. Can be used with prefabricated membranes.
  5. Large countersunk top makes for easy flow or rainwater and the seal between the outlet and the down pipe ensure that it is fully watertight for all of its circumference.
  6. Warehousing of only one type of drain.