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Graviflex BACK

Waterproofing capsheet in a two-layer system for roof gardens and multi-use flat roofs.

  • Universal system for different uses on a flat roof: planted areas, accessible roofs for pedestrians, for light vehicles, inaccessible areas with gravel or self-protected membrane.
  • Very high mechanical and chemical resistance due to the SBS elastomeric compound.
    Excellent durability
Main uses
  • Waterproofing of roof gardens or flat roofs with different uses: planted areas, access for pedestrians, access for light vehicles.
  • On wood or concrete decks.
  • On thermal insulation boards that are suitable for these purposes.
  • With protection: soil or growing medium, paving on corner supports, block paving on sand, bitumen macadam, gravel ballast.
Description
  • SBS elastomeric bitumen compound with root-inhibiting additive: 3,700 g/m²
    Thickness: 3.2 mm.
  • Non-woven polyester reinforcement: 180 g/m²
  • Surface with slate flake overprotection (Light Grey 1).
  • Underside with fusible film.
Applications
  • Full bonding or partial bonding are allowed; partial bonding by torching through the Perfader perforated underlay is used on roofs that are accessible to vehicles (with a bitumen concrete or macadam course).
  • Main areas.
  • The Graviflex system comprises two waterproofing membranes: Preflex and Graviflex bonded together by torching. On main areas, Preflex can be replaced by the Paradiene S VV underlayer or again by Paradiene VV bonded with hot bitumen (on roof gardens only). In all cases, the Graviflex top layer is fully bonded to the underlayer by torching.
  • Upstands on roof gardens and green roofs: Preflex as underlayer and Graviflex as top-layer (torched).
  • Upstands on flat roofs accessible to pedestrians or light vehicles:
    Paradiene 35 S R4 + Paradial S (roofs with hard protection);
    Paraquerre + Paradial S (roofs with paving slabs on corner supports);
    Paradiene 35 S R4 + Verinox S (roofs with access for vehicles).
  • Roof Gardens: these require the addition of Gravidrain drainage panels + Gravifiltre filter layer + soil.
  • Inaccessible planted areas: see Siplast systems Graviland-Pack and Gravi-Tapis.
  • Pedestrian areas: these allow hard protection complying with the local Code of Practice, either protection by concrete paving slabs, or Dalle Boise HR 56 wooden slabs on adjustable Plot Zoom corner supports
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