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LOOSE-LAID/BALLASTED SYSTEM - LIGHT TRAFFIC

1. SUBSTRATE

Typical: structural concrete

  • The structure will be designed to support the ballast weight.
  • 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 Rubberfuse
    Flashing/Substrate Adhesive*.

* Refer to technical data sheet

2. VAPOUR CONTROL LAYER

Typical: 200µ polyethylene film

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

3. INSULATION

Typical: 25 kg/m² expanded polystyrene

  • Any UEAtc approved roofing board with the required thickness is also acceptable.
  • Install loose with staggered joints, avoiding gaps in excess of 6mm.
  • Taper the joints at roofdrains.
  • Should insulation not be used (concrete),a protection layer (geotextile 300-400 g/m²) should be installed.

4. SINTOFOIL MEMBRANE

Typical: ST/Black/1.2 mm

  • Any other type of Sintofoil membrane is also acceptable.
  • Install loose, with overlap and welded seam as per specifications*.
  • The membrane will be mechanically secured at roof perimeter and around protrusions.

* Refer to the "welded seam technology" section.

4. SINTOFOIL MEMBRANE

Typical: ST/Black/1.2 mm

  • Any other type of Sintofoil membrane is also acceptable.
  • Install loose, with overlap and welded seam as per specifications*.
  • The membrane will be mechanically secured at roof perimeter and around protrusions.

* Refer to the "welded seam technology" section

4. SINTOFOIL MEMBRANE

Typical: ST/Black/1.2 mm

  • Any other type of Sintofoil membrane is also acceptable.
  • Install loose, with overlap and welded seam as per specifications*.
  • The membrane will be mechanically secured at roof perimeter and around protrusions.

* Refer to the "welded seam technology" section.

Light Traffic