Certified safety for Green Roofs!
FLL Test – accepted worldwide
HerbiTECT® is worldwide acknowledged and a proven biodynamically effective protection against root penetration of bituminous waterproofing membranes.
Bituminous membranes with HerbiTECT® pass all common Green Roof-tests according to DIN, FLL, EN, SIA and LDA!
Scientific research for HerbiTECT®
HerbiTECT® is the result of an interdisciplinary cooperation between producers of bituminous membranes and leading European scientific institutes and universities.
Productinformation
HerbiTECT® is a brown, specific smelling, with water mixable, oily fluid. It is easily soluble in liquid bitumen and many organic solvents.
Process temperature
HerbiTECT® remains solid and not volatile at usual process temperatures (up to 250° C) during the production of Green Roof-membranes. We suggest a maximum temperature of 200 °C, short-term up to 250 °C
Dosage
Waterproofing membranes
The reference dosage value for at least 4 mm thick bituminous waterproofing membranes is 0.30 - 0.40 % HerbiTECT®, based on the bitumen weight of the membrane, while we recommend the following dosages:
0.4 % for heavy load in the green roofs (e.g. intensive planting / greenery or the usage of only one layer green roof membranes)
0.3 % for less load in green roofs (e.g. extensive plating / greenery or two layers green roof membranes)
Compounds and cold applicable coatings
Based on the total weight we recommend a dosage of 0.20 - 0.25 % of HerbiTECT® depending on the hardness of the compounds.
Bituminous sealings
Based on the total weight of the sealing with a thickness of at least 3 - 4 mm, the reference dosage value is 0.23 - 0.25 % HerbiTECT®. When using pure or a high-percentage bitumen with a minimum thickness of 2 - 3 mm, a reference dosage value of 0.4 - 0.5 % based on the bitumen weight is recommended. For bitumen-sand layers with a low bitumen content, the dosage is 0.65 - 0.75 % HerbiTECT® based on the bitumen content.
Light-duty road construction / Embankment construction
The reference dosage value for light-duty asphalt roads and embankments to prevent the penetration by plants is 0.65 - 0.9 % HerbiTECT®, based on the bitumen content.
Rubber seals
HerbiTECT® should be added to the rubber compound in approximately 0.5 - 1.5 % by the weight of rubber.
Chemical and physical data
Storage
Can be stored for at least 3 years in closed original containers if stored properly.S
