Products » Systems

GARDEN ROOF

1. SUBSTRATE

Typical: structural concrete

  • The structure will be designed to support the earth/vegetation layer.
  • The substrate will be clean, dry, smooth and free from contamination.
  • Although dead level is acceptable, a slope is recommended for roof drainage.
  • All vertical surfaces will be compatible with the Flashing/Substrate Adhesive *.

* Refer to technical data sheet

2.VAPOUR CONTROL LAYER

Typical: 200µ polyethylene film

  • The material type will be specified if/as required by the dew point calculation.
  • Install PE loose-laid with 100mm overlap and taped seam, other types as specified by manufacturer.

3. INSULATION

Typical: 25kg/m³ expanded polyurethane

  • Any UEAtc approved roofing board with the required thickness is also acceptable.
  • Install loose with staggered joints, avoiding gaps in excess of 6 mm.
  • Taper the joints at roofdrains.
  • Would insulation not be used, a protection layer (geotextile 300 g/m² minimum) will be installed.

4.SINTOFOIL MEMBRANE

Typical: ST/Black/1.5 mm

  • Any type of Sintofoil membrane (recommended minimum thickness: 1.2 mm) is also acceptable.
  • Install loose, with overlap and welded seam as per specifications.*

* Refer to "welded seam technology" section

5.PROTECTION LAYER

Typical: 200 g/m² min. geotextile

  • Install loose, with min. 100 mm overlap.
  • It is recommended to evaluate the eventual need for heavier protection, depending on subsequent layers.

6. DRAINAGE LAYER

Typical: expanded clay

  • The thickness will be specified according to the garden type.

7. FILTER LAYER

Typical: 150g/m² geotextile

  • Install loose, with min. 100 mm overlap.

8. VEGETATION LAYER

Notes:
Refer to the local code requirements when applicable.
Reroofing projects will be subject to a specific study, including preliminary inspection.

GARDEN ROOF