An optimized green roof system to enjoy nature
RENOLIT ALKORPLAN Green is essentially an extensive green roof system, as most green roofs currently being created are of the extensive type. Nevertheless, can be adapted to both intensive and semi-intensive green roof applications. Reliable waterproofing systems are key to the success of a garden roof: any damage or leak would mean expensive removal operations of soil and plants.
Moreover, it is essential for the waterproofing membrane to be root resistant to make sure that watertightness is safe. At the same time, the anti-root additive is harmless to plants, so that they can grow properly. Many public administrations are recommending the installation of green roofs in urban areas to reduce pollution and increase air quality.
RENOLIT ALKORPLAN Classic
Cost-effective synthetic single ply membrane of plasticised PVC-P.
See product
RENOLIT ALKORPLUS Water retention layer
See productSingle ply waterproofing of ecological garden roofs systems
RENOLIT ALKORPLAN offers membranes for three different roof installation methods, in particular mechanically fastened systems, ballasted systems and fully adhered. So, whatever your roof construction, purpose of the building or required installation method, RENOLIT ALKORPLAN Roofing products always have a suitable solution!
Adhered system
| For concrete support. |
| For when the vapour control layer cannot be perforated. |
| Compatible with old bituminous membrane. |
Benefits of choosing our green roof system for your projects
Oxygen production
Reduction “Heat Island” effect
Reduction cooling costs
Protects biodiversity
Most used accessories for the installation of this product
RENOLIT ALKORPLAN Waterproofing of green roofs FAQs
RENOLIT ALKORPLAN systems support:
- Extensive: Lightweight, low maintenance, with sedum and herbs.
- Semi-intensive: medium weight, accessible, with flowers, lawns, and small shrubs.
- Intensive: Heavier, fully accessible, allowing for a wide variety of plants.
It enhances building performance by:
- Reducing heating and cooling costs through natural insulation.
- Improving soundproofing, especially against rain and hail.
- Extending the life of the waterproofing membrane by protecting it from UV rays and mechanical damage.
Yes, the system is designed to be flexible and adaptable, making it ideal for both new construction and refurbishment projects. It can be tailored to different roof slopes and plant types, offering both functional and aesthetic benefits.
RENOLIT ALKORPLAN membranes have excellent resistance to static perforation (Class L20) on both hard and soft substructures. They are also root-resistant, having passed the EN 13948 root resistance test. The joints are installed using hot air welding or glue, ensuring watertightness and durability.
