Long-term security for complex details
Waterproofing solutions specifically tailored to the requirements of green roofs
Green roofs make an important contribution to climate adaptation: they can retain rainwater, promote evaporation and support the urban microclimate. Reliable waterproofing is essential to ensure that they can perform these functions over the long term. It provides lasting protection for the building structure against moisture, root penetration and mechanical stress – in both new-build and refurbishment projects.
Special Requirements for Green Roofs
Green roofs place higher demands on waterproofing than conventional roof systems. This is due to constant exposure to moisture, the effects of plant roots, and the high number of details required at joints and penetrations.
In addition, there are regulatory requirements—such as those set forth in the FLL guidelines or the relevant DIN standards—that necessitate careful planning and execution.
A green roof waterproofing system must not only be watertight but also function reliably over the long term
For green roofs, Triflex relies on seamless, fabric-reinforced waterproofing systems that adhere over the entire surface and can be flexibly adapted to different roof geometries. The strength of liquid-applied systems is particularly evident at penetrations, roof structures, and connections.
The waterproofing is not viewed in isolation but as a key component of the entire green roof structure. Our trained and certified specialist installers will be happy to advise you.
Safety in Planning and Execution
Triflex waterproofing systems for green roofs are:
- Permanent
High mechanical strength combined with low weight reduces stress on the building structure and ensures safe use over the long term.
Suitable for various green roof designs
Triflex solutions are used in various types of green roofs, including:
- extensive green roofs
- intensive green roofs
- retention roofs for rainwater retention
- inverted roofs with a green roof system
The systems can be integrated into various roof structures and can also be used in retrofits of existing buildings.
System Concept and Partnerships
Holistic green roof systems are created by combining carefully coordinated layers for protection, drainage, and vegetation. In collaboration with experienced partners, we implement solutions in which all components are technically interlocked.
This turns the waterproofing into a secure foundation for a functional green roof system.
References on Green Roofs
Practical experience
Green Roof on a Single-Family Home in Minden
When building a new single-family home, the owner relied on his positive experience with Triflex, a local liquid polymer specialist, and its Triflex ProTect system.
Learn more...
FAQ – Green Roofs with Triflex Waterproofing Systems
In green roofs, the waterproofing is permanently buried beneath several functional layers (substrate, drainage, vegetation) and can later be accessed only with great effort. In addition, the system is subjected to constant moisture, root penetration, loads, and temperature fluctuations.
Defective waterproofing often does not lead to damage until years later—but when it does, the repair costs are substantial. Therefore, a permanently secure, root-resistant waterproofing system is the essential foundation of any green roof. Unsere Experten beraten Sie gerne...
Yes. Triflex waterproofing systems for green roofs are root- and rhizome-resistant in accordance with FLL guidelines and have been tested in accordance with DIN EN 13948.
This means that the waterproofing provides lasting protection for the roof structure against root penetration—even with intensive greening or long-term use.
Triflex systems are suitable for:
- extensive green roofs
- intensive green roofs
- Retention roofs
- Combinations of green roofs and roof terraces
- Green roofs with technical installations (PV, ventilation, railings)
The systems can be adapted to different layer configurations and uses.
Yes. Triflex waterproofing systems are suitable for both new construction and the renovation of existing flat roofs.
They offer particular advantages for renovations due to:
- full-surface adhesion
- thin coating thicknesses
- Adaptability to existing substrates
- reliable integration of existing details
Triflex waterproofing systems are fabric-reinforced liquid polymer systems.
This allows for:
- Connections
- Penetrations
- Joints
- complex geometries
sealed seamlessly and without overlapping joints.
Green roofs, in particular, present many critical details—this is a key advantage over membrane-based waterproofing systems. Mehr über Detailabdichtungen erfahren...
Triflex systems can withstand high mechanical loads while remaining lightweight.
This reduces stress on the supporting structure and allows for use even when structural reserves are limited.
The waterproofing remains fully functional even after long-term use, exposure to moisture, and varying loads. Our roofing experts will be happy to advise you on-site to help you choose the right systems. Fachverarbeiter finden...
Yes. Triflex systems are very well suited for combined roof uses, such as:
- Green roof + rooftop terrace
- Green roof + solar panels
- Green roof + technical areas
The waterproofing provides a secure foundation for various roof structures and usage concepts.
A Triflex waterproofing system installed by a professional offers:
- long-term protection of the building structure
- reduced maintenance and renovation costs
- high planning reliability
- sustainable use of the roof
- Preservation of the property’s value
High-quality waterproofing pays off over the entire lifespan of the building, especially with green roofs.