Green Roof

Intensive Green Roof, Roofdrain, Education City, Qatar

Project Information

Client:Qatar Foundation for Education, Science and Community Development
Contractor:Al Jaber & Partners
Consultant:Parsons
Product:Roofdrain drainage geocomposite
Rootline root barrier geosynthetic
Quantity:25,000m2
Benefits:- Pre-fabricated composite product allowed rapid installation to meet tight project timescales
- Easy handling and installation on roof areas
- Reduced load on structure due to lightweight components


Project Description

Education City is an initiative of the private, non-profit organization, the Qatar Foundation for Education, Science and Community Development, which was founded in 1995 by the Emir of Qatar.

It is set on a 2,500-acre campus on the outskirts of the capital, Doha. Education City hosts branch campuses of five American universities and is also home to educational institutions for children and research institutions. Part of Qatar Foundation’s promotion of a ‘culture of excellence’ required designers to provide innovative solutions throughout the many buildings sited across the Education City complex. A podium deck finished with an intensive green roof was selected to create an aesthetically pleasing walk way through from the metro station to the main building complex.

Education City, Qatar

The Challenge

With external planting in the Middle East there is always a challenge to irrigate and preserve water for maintaining healthy plant growth especially through the hot summer periods. The specification called for the planting of ornamental grasses and sedums in multi-shaped planters. 

A five layer roof detail was devised where the waterproofing layer was protected from mechanical damage and root damage; a water collection reservoir to encourage root growth and carefully selected growing media. The window for installation was very tight to avoid planting in the middle of the summer and a quick lay solution was required. The multiple layers posed a time consuming installation problem.

The Solution

ABG working with WT Burden offered ABG Roofdrain geocomposite system which combined three of the separate layers in one product. Working with the main contractor, Al Jaber, ABG helped detail all edge and overlap details including a wedge to carry the multiple layers through 90 degrees and provided a supervisor on site to ensure rapid installation.

The 25mm thick Roofdrain is supplied in rolls with overlaps to ensure growing media does not fill the reservoir voids below. The Roofdrain drainage composite is highly versatile and can be easily cut to suit the complex multishaped planters on the podium deck. Roofdrain includes a protection geotextile which protects the waterproofing membrane from damage during construction.

With the help of ABG, the green roof and irrigation system installation was undertaken quickly and successfully. The Roofdrain geocomposite captures the irrigation water in a reservoir optimising reuse of the water.

ABG Roofdrain geocomposite underneath the growing media

ABG Roofdrain geocomposite underneath the growing media on the Intensive Green Roof

Roofdrain and ABG Rootline root barrier are part of the green roof systemRoofdrain geocomposite combined three previously separate components into one minimising installation time
Hardy plants on the Roofdrain water reservoir on the green roofHardy plants on Roofdrain water reservoir
ABG Roofdrain drainage composites being overlapped on an intensive green roof projectRoofdrain overlap detailing
Qatar Foundation showing the green roof areasQatar Foundation showing the green roof areas

The ABG Service

Assistance with design detailing, staged delivery along with site supervision at the start of installation.

Contact ABG today to discuss your green roof project specific requirements and discover how ABG past experience and innovative products can help on your project.

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.

more...

Roofdrain drainage geocomposite for green roofs, blueroofs and roof SuDS attenuation

Rootline Root Barrier

Rootline is a root barrier developed to protect highways, foundations, waterproofing, pipes and other services, etc. from damage arising as a result of tree root penetration.

more...

Rootline Root Barrier

Intensive Green Roof Systems

Intensive Green Roofs characteristically consist of a combination of hard and soft landscaped finishes.  They create valuable mixed use amenity areas at roof level.

more...

Intensivegreen roof design using geosynthetics from ABG
 

Products

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.

more...

Roofdrain drainage geocomposite for green roofs, blueroofs and roof SuDS attenuation

Rootline Root Barrier

Rootline is a root barrier developed to protect highways, foundations, waterproofing, pipes and other services, etc. from damage arising as a result of tree root penetration.

more...

Rootline Root Barrier

Intensive Green Roof Systems

Intensive Green Roofs characteristically consist of a combination of hard and soft landscaped finishes.  They create valuable mixed use amenity areas at roof level.

more...

Intensivegreen roof design using geosynthetics from ABG
 

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