Drainage geotextile / green roof
VLS-300 Diadem


  • Function:

    for drainage

  • Applications:

    green roof


070. Product Description
The VL fleeces are geotextiles made of polypropylene thread using a needle felting method.
080. Application
VL geotextiles have many different uses on green roofs but their main functions are filtering and mechanical protection. VLS geotextiles are water retentive and protect too. Manufactured from a mixture of threads, without thermal treatment. Approx. weight 500 g/m2 .
090. Frequently Asked Questions
Up to what height should this protective layer be drawn over the waterproofing?
It should fully cover and protect the waterproofing layer.
How long can the products be stored in open air?
UV stabilized products, in general, can be exposed to direct sunlight for about 4 weeks.
Does a VL layer have to be joined to the layer below it?
No, but it should be weighted against wind uplift if left exposed.
Are VL geotextiles root-resistant?
Roots were meant to grow through the VL layers and by intertwining, strengthen the entire system. Mature root growth is therefore more desirable than fresh planting.


Other Diadem products


Green Roof Systems

Drainage and reservoir boards

Root resistant membranes


Inspection boxes for extensive green roofs

Inspection boxes for intensive green roofs

Fascia inspection boxes

Inspection and underground garage boxes

Terrace channels

Terrace grilles (adjustable height)

Doorstep grilles

Balcony outlet

Gravel boards

PRODUCTS / Terraces / Terrace pedestals

Safety railing system

Fall arrest and lighting protection system


Other products