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Tested safety for bitumen roof membranes!

FLL Testing – accepted worldwide

HERBITECT® has been acknowledged by FLL as a proven biodynamic root inhibitor as it fulfils all established root protection test requirements DIN, FLL, EN, SIA or LDA!

Scientific research for HERBITECT®

HERBITECT is the outcome of an interdisciplinary cooperation of manufacturers of bitumen membranes with  leading European scientific institutes and universities.


The international recognition and leading position of BÜSSCHER & HOFFMANN is reflected in its membership in renowned organisations.

  • BWA – Bitumen Waterproofing Association
  • VfB – Association of planting vegetation on buildings
  • IFD – International federation of the tiling craft

Tested security

HERBITECT bitumen membranes meet the
DIN, FLL, EN, SIA, LDA root protection tests!

Product information

Universal for bituminous building
materials, sealants and asphalt mixtures.