Roll-out Brown Roof System

Features and benefits:

  • Designed for extensive brown roofs with a build-up of 70–150 mm.
  • Each layer of component is supplied separately in bag or roll form and installed separately as a “dry” build-up, allowing easy access to roof areas.
  • Suitable for large scale areas, unlevel or more complicated decks as it is flexible and “built into” the existing structure.

General information

Uniclass 2015

Ss_45_40_47_09 Brown roof systemsPrimary


Q37/130 Extensive green roof

Specification data - Brown roof systems

Product Reference

Roll-out Brown Roof System

Protection board

Not required


Drainage layer

Protecto-drain 20P

Growing medium

Low nutrient


Not required


Sedum / wildflower blanket or plug planted shrubs, wildflower seed mix.


Sedum/ wildflower mix

Standard product features

Drainage layer:

  • Protecto-drain 20P perforated drainage sheet.
  • Thickness: 20 mm.
  • Can be cut and shaped around particular details.

Geotextile filter fleece:

  • Recycled multi-coloured polyester.
  • Weight: 300 g/m².
  • Laid above and below drainage layer.

Low nutrient growing medium:

  • Coir.
  • Green compost waste.
  • Lightweight aggregate.


  • A basic sedum and wildflower blanket is supplied interspaced with native, local plants.
  • A natural, sustainable habitat can be created.
  • Very low maintenance and no irrigation required.
  • Opportunities to recycle site waste in substrate.

Maximum roof slope:


Product Options

Protection board:

  • Bituminous Protecto-Board.
  • Thickness: 3 mm.

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