Driplines are attached to this Aquafleece using Velcro strips at intervals of about 50 cm. Therefore, if there is no rainfall, additional irrigation will take place using an automated system. The irrigation system can programmed to supply water in intervals, means that water is available continuously in the Aquafleece. It reaches the overlaying growing medium through capillary effect and is available to the plants directly in the root area. A depth of about 8 - 10 cm of growing medium ZinCoblend-E is perfect for the appropriate plant community “Sedum Roof" or "Sedum Roof Plus”.

The fact that the drainage element beneath the Aquafleece can be chosen to match the roof pitch means that the system is very flexible and is suitable for roofs with a pitch from 0° to over 5°. Smaller roof irregularities with ponding can be easily dealt with.

Suitable for use in many different regions

The “Irrigated Extensive Green Roof” will be widely used as an efficient, inexpensive irrigation option during dry and hot summers. As mentioned above, regions with a temperate climate are faced increasingly with dry periods. In Canada, for example, this is the Greater Vancouver Area and the Greater Toronto Area. The annual average precipitation in the region is at times considerably below 500 mm.

If you choose an “Irrigated Extensive Green Roof” you will have the advantage of it already being available in the sensitive plant establishment period, therefore, enabling a fully needs-based irrigation.

That looks good!

The new System Build-up “Irrigated Extensive Green Roof” with its highly efficient capillary irrigation system will manage to strike a balance between a cost-effective solution and the permanent proper functioning of a green roof in dry climates. Only a healthy and lush plant growth will be capable of exploiting the ecological and economic advantages of a green roof for both humans and the environment. And another thing – it also looks great!