How To Waterproof A Green Roof

From a waterproofing perspective you may want to consider the following draw the line between waterproofing and the green layers.

How to waterproof a green roof.

For this project the roof was built to withstand the added load and then covered with a waterproofing membrane. Here green roof installer rob gaffney adds a second layer of rubber roofing membrane as a root barrier to prevent damage to the roof. Preformed waterproofing may suit green roofs with gentle slopes and large uninterrupted areas. A green roof system usually includes a root barrier to protect the waterproofing from aggressive plant roots that can penetrate the membrane.

The green roof segment harbours a great deal of potential and will become increasingly significant as climate change continues. A green roof with many fixings onto the roof deck or penetrations such as for lighting power or ventilation may be more suited to liquid applied waterproofing that is sprayed on or rolled on to form a cohesive single layer. Cities are expanding and the global population is growing steadily. Lay down a strong membrane if you lay down a strong waterproofing membrane from the get go leaks may not become an issue even under the most aggressive green roof roots.

Green roofs for healthy cities grhc is developing a course on waterproofing and drainage as it relates to green roof design and implementation. Green roof waterproofing with resitrix epdm roofing membranes reliable roof waterproofing for all green roof systems. First of all your installation ends before any green roof construction begins. The course will be launched at the fifth annual international greening rooftops for sustainable communities conference april 29 may 1 2007 in minneapolis.