Extensive Green Roof Systems

An Extensive Green Roof including drainage & reservoir layer, growing media and plug plants.
Extensive Green Roof Systems
Extensive green roof systems characteristically consisting of a shallow layer of growing media; typically 80mm deep. This is planted with a variety of drought tolerant hardy plants, such as sedums.
Applications
- New build & refurb
- Commercial & Domestic
- Flat & Pitched Roofs
- Roofs with limited access
Benefits
- Increased roof lifespan
- Reduced run-off
- Low Maintenance
- Lightweight
Extensive Green Roofs are the most common type and are relatively self-sufficient; they are not designed or constructed with the intention of being trafficked by pedestrians. Whilst not providing any kind of amenity area they do contribute to improving air quality, reducing the visual impact of the roof and assist in controlling rain water run-off/ harvesting as well as contributing to the acoustic and thermal properties of the roof.
Extensive Green Roof Systems are characteristically lightweight, with saturated loadings ranging from 80 – 120kg per m2. An ABG Extensive Green Roof System typically consists of a drainage & reservoir layer; Roofdrain, a lightweight Extensive growing media, aluminium edge profiles and a vegetation layer.

Typical Client Profile:
- Landscape Architects
- Drainage Consultants
- Local Authority Planning Depts.
- Roofing Contractors
- Roofing System Suppliers
- Main Client
Drone Footage of the ABG Green Roof Project at Leeds Skelton Lake Services in the UK
Related Systems
The following similar roofing systems are also available from ABG:

Associated System Products
Within an extensive green roof system, the following geosynthetic products and accessories may be used in the extensive green roof design:
Roofdrain
Roofdrain is designed for use in extensive green roof systems. It provides both drainage and attenuation in a convenient, lightweight and cost effective system.
Extensive Growing Media
A blend of water retaining aggregates, crushed brick and organic material mixed to provide an extensive substrate to meet customer specifications. Extensive substrates are a versatile lightweight general purpose green roof growing media ideal for sedum matting systems and substrate based systems supporting hardier lower maintenance plants such as sedum.
Pre Grown Sedum Mat
ABG’s green roof vegetation mats are supplied ready-to-roll-out as an instant vegetation layer. An attractive mix of more than 16 varieties of sedum with differing colours and leaf forms for low maintenance and extreme drought tolerance.
Plug Plants
The 'plugs' are varieties of sedums, herbs and perennials, planted by hand to the required density. Available in a wide range of species to suit the individual requirements of the project.
Abpro Aluminium Profiles
ABG Abpro Aluminium Profiles are designed for use in a variety of green roof applications as an edge restraint or as segregation between different materials.
ABG Green Roof Access Chambers
Purpose designed to create an inspection point around a roof outlet.
Product Literature
Case Studies
ABG blueroof Green Roof Extensive Rathbone Market London UK CASE STUDY
ABG Green Roof Extensive Erosaweb Alder Hey Hospital Liverpool UK CASE STUDY
ABG blueroof Green Extensive Huddersfield University UK Case Study
ABG Green Roof Extensive Center Parcs Woburn UK CASE STUDY
ABG Green Roof Extensive Skelton Lake Services Leeds UK CASE STUDY
ABG blueroof Green Extensive and Paved, Cavendish Sheffield UK Case Study
ABG blueroof 160 Old Street UK CASE STUDY
Complementary Products
ABG Green Roof Abpro Profiles PVC DATASHEET
ABG Green Roof Growing Media DATASHEET
ABG Green Roof Access Chamber DATASHEET
ABG Green Roof Wild Flower Roof Turf DATASHEET
ABG Green Roof Wild flower Sowing Seed Mix DATASHEET
Technical Papers
Specification Clauses
BIM Models
Contact ABG for further information
Fill out our quick contact form with your product, application, technical or sales enquiry, and one of our team will be in contact shortly.
