Grassroof

A simple yet very effective green roof system that can be used for new-build or retro-fit flat roof construction. The lightweight structure can be used to good effect with for instance extensive format applications enabling existing flat roofs to be easily converted to green alternatives. With Simple intensive and Intensive applications the units form the base drainage layer for these deeper structures.

Applications:

Grassroof can be utilised to create:

• Extensive roofs: Sedum planted overlay to new or existing roof with minimal access requirement.

• Simple intensive roofs: Sedum or shallow rooting grass to new or existing roofs where structurally verified.

• Intensive roofs: Grass or shrub planting enabling a roof garden environment to new structures.

Vegetation layer:

• Extensive design: Sedum.

• Simple intensive: Sedum or shallow rooting grass.

• Intensive: Grass or shrubs.

Infill material:

• Soil / Perlite mix.

• Soil / Vermiculite mix.

Drainage layer:

• GRF/1: Pea shingle.

• GRF/2: None – clear waterway.

Benefits:

• Attenuation of surface water run-off including ultimate reduction in run off levels, reducing potential for flooding.

• Noise reduction and a two way thermal barrier.

• Protects the roof membrane from UV attack.

• Helps to limit the “Urban Heat Island” effect by promoting evapo-transpiration.

• A greener outlook in an urban landscape.

System includes:

• GRF/1 units for a gravel filled zone beneath the paver.

• GRF/2 units for a clear waterway beneath the paver.

• LS/1 clip on leg supports.

• LSP/1 adhesive pads to secure LS/1 in exposed applications.

• GK45 Grasskerb units with adhesive pads for extensive green roofs.

• GK60 Grasskerb units with adhesive pads for simple intensive green roofs.