Inverted Roof Assembly

Stabilodrain® SD30

The ideal assembly for driveways on inverted roofs

Create a recreational park or plaza on your building’s inverted roof – including driveways and parking areas.


  • Maximum compressive strength
  • Allows insulation to dry out
  • High drainage capacity
  • Designed for parking decks on inverted roofs
  • Can be used for intensive roof gardens
  • Durable protection for waterproofing membrane

System buildup

  1. Hardsurfacing
  2. Bedding Material (≥ 150 mm)
  3. ZinCo Filter Sheet TG
  4. ZinCo Stabilodrain SD30
  5. ZinCo Diffusion Membrane TGV21
  6. Rigid Insulation
  7. Roof Structure & Waterproofing

Depth: ≥280 mm (11 ")

Water retention capacity: ≥ 135 L/m2

Saturated weight: ≥ 365 kg/m2 (75 psf)

Slope: 2-5 degrees

Guide Specifications Datasheet
Download PDF Download DWG
Planning Guides

Why Green Roofs?

Greener cities are healthier cities – and ZinCo green roofs can significantly contribute to making cities and buildings more livable by:

  • Improving air quality by absorbing greenhouse gases.
  • Absorbing sunlight, reducing cooling and heating costs for your building.
  • Capturing and helping manage storm water.
  • Reconnecting humans with nature.
Learn more