Bound Gravel
on a roof terrace
Artificial Grass
on a podium
on a roof terrace

We are continually evolving and developing our rooftop systems to work with more and more innovative projects and designs.

Unlike typical ground-level installations, which require tarmac or MOT stone sub-bases, roof-tops require a cold-applied material that can easily be maneuvered into position.

DCM Surfaces have three main solutions to building up the sub-base structure on a roof terrace or podium:

1.ReCycle SUDS compliant material
2.Eco Grid, filled with pea gravel
3.The Kinley metal tray system

Each of these systems allows water to drain through the permeable artificial grass, rubber crumb, or bound gravel and flow away through drainage layers below.

Type of Materials

Bound Gravel

Bound Gravel has been tested to BN ES1187: 2012 Test 4 External fire exposure to roofs.


Wetpour has been tested to EN 13501-1 (09/2007)

Note: When threshold depths are limited, ReCycle can be substituted for a denser product such as Bound Gravel with a non-UV stable binder.


  • Carrow Quarter

    Site Name: Carrow Quarter
    Location: Norwich
    Surface Type: Bound Gravel and Artificial Grass

    DCM Surfaces were excited to work on the prestigious residential development at Carrow Quarter, Norwich.

    The project included the install of the sub-base, Artificial Grass and Bound Gravel onto a Bauder Drainage system.

Roof-Top Terraces Case Studies


Rooftop Terrace Surfacing…

All of our rooftop terrace solutions offer the following benefits:

• Install at various depths to acheive required thresholds

• Ramp down to meet door thresholds

• Acheive 80kg / m2 – required to prevent uplift of insultation

• Easy to maintain, naturally keeps clean and easy to run all year round