The Problem

In order for a garden roof to be self-sufficient, it requires a high-performance drainage system that will ensure excess water does not accumulate and damage the roofing or the plant roots. 

The Solution

DELTA®-TERRAXX is a dimpled sheet with a geotextile layer designed for garden roof applications. It acts as an external drainage layer while also protecting the primary waterproofing membrane. 

Product Details
Product Benefits
  • Dimpled sheet with a laminated layer of filtration geotextile 
  • Drainage layer distributes excess water out and away from the structure, preventing the accumulation of frost
  • Compression-resistant permanent filtration geotextile prevents the dimple structure from being clogged up by sludge, thus guaranteeing optimal drainage
  • Integrated self-sealing edge makes the dimpled sheet easy to lay out and helps prevent root penetration
  • Smooth backing of the material ensures any impinging loads are distributed evenly across the waterproofing surface, making it safe for workers to walk on any compression-resistant waterproofing layers during the construction phase
  • Smooth backing protects the waterproofing from mechanical damage and harmful exposure to heat
  • Easy, safe and cost-effective installation – sheets are simply rolled out on top of the waterproofing layer, with the permanent-filtration geotextile facing up
  • Finishing is easy due to a dimple-free overlap zone equipped with a self-adhesive strip