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Description

Extensive green roof designed to reap the benefits that green roofs offer but at minimal cost and with very little maintenance. A shallow layer of growing medium is used to support low growing, stress-tolerant plants (e.g. sedums) that can generally look after themselves. Their lighter weight makes them suitable for use in both new and refurbishment roof construction.

System components:

  • Rhepanol hg.
  • Verdi-Drain-U.
  • Verdi-Drain25.
  • Verdi-Drain-F.
  • VerdiRoof Extensive.
  • Vegetation.
  • Decorative aggregates.

General information
Specification data
Product Reference

VerdiRoof Extensive Green Roof System

Waterproofing membrane

Rhepanol hg

Protection layer

Verdi-Drain-U

Drainage layer

Verdi-Drain25

Filter membrane

Verdi-Drain-F

Planting medium -
Type

VerdiRoof Extensive

Depth

Insert requirement.

Vegetation

Verdico Sedum Blanket

50–70 mm substrate depth.

Verdico Wildflower Blanket

110 mm substrate depth.

VerdiRoof Hydroplant and Seed

70–90 mm substrate depth.

VerdiRoof HydroSeed/ Seed

90–150 mm substrate depth.

VerdiRoof Sedum Plug Planted

70–90 mm substrate depth.

VerdiRoof Wildflower Plug Planted

90–150 mm substrate depth.

Vegetation barrie

Decorative aggregates

Standard product features

Build-up height:

80–120 mm.

Weight:

96–190 kg/m².

Waterproofing membrane:

High quality single ply membrane with excellent green credentials, designed especially for green roofs.

Protection layer:

300 g/m² moisture retention layer which also protects the waterproof layer.

Drainage layer:

High capacity reservoir with quick drainage properties made from recycled high density polystyrene. 25 mm deep dual cuspated and perforated.

Filter membrane:

150 g/m² particle fleece separating VerdiRoof growing medium to avoid saturating the rootzone.

Planting medium:

Specialist mineral based plant growing medium consisting of pumice, bark compost and unique carbon capture pellet. Factory blended and stabilized against de-mixing, the substrate provides a high total pore volume balanced with good nutritive substance buffering for exceptional plant germination and growth, while providing carbon negative figure of 7 kg/m³.

Product Options

Vegetation:

  • Verdico Sedum Blanket: Mixture of hardy succulents, primarily sedum species supplied in a pre-cultivated blanket (20–25 mm thick), 6–9 species/m² (approximate).
  • Verdico Wildflower Blanket: A mixture of grasses, wildflowers and succulents supplied in a pre-cultivated wildflower turf (>30 mm thick), 9 species/m² (approximate).
  • VerdiRoof Hydroplant and Seed: Sedum cuttings and seed sprayed in a mulch solution), 6–9 species/m² (approximate).
  • VerdiRoof HydroSeed/ Seed: Wildflower seed sprayed in a mulch solution onto a prepared substrate or wildflower seed hand sown onto a prepared substrate, ≤38 species/m².
  • VerdiRoof Sedum Plug Planted: Pre-grown hardy succulents, primarily sedums, installed at a rate of 16–20/m².
  • VerdiRoof Wildflower Plug Planted: Pre-grown wildflowers, grasses, bulbs and hardy succulents, installed at a rate of 16–20/m².

Literature