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Top Series waterproofing membranes comprise a range of glass wool and polyester reinforced polymer modified membranes. The underside of Top Series membranes is coated with Termotene film that facilitates installation and improves adherence of the membrane to the substrate to be waterproofed.

General information
Specification data - Reinforced bitumen roofing sheets
Product Reference

Top Series N underlay

Glass reinforced.

Top Series S underlay

Polyester reinforced.


3 mm

4 mm

Standard product features

Roll size:

10 x 1 m.



Surface finish:

  • Upper: Talc.
  • Lower: Plastics film.

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