Waterproofing Layer Green Roof

Green roofs for healthy cities grhc is developing a course on waterproofing and drainage as it relates to green roof design and implementation.

Waterproofing layer green roof. Polyglass systems come complete with all the required elements from primers and vapour barriers to waterproofing membranes or sheaths and even separating layers and drainage geocomposites are included. A green roof is a layer of vegetation planted over a waterproofing system that is installed on top of a flat or slightly sloped roof. 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. Green roofs are composed of a series of layers that allow vegetation to grow correctly avoiding leaks that may cause damage to the structure of the building.

The key to any good green roof project is a good waterproofing membrane. The waterproofing layer is in fact usually the last layer to be applied before the green roof contractor gets to work. Green roof waterproofing with resitrix epdm roofing membranes reliable roof waterproofing for all green roof systems. Waterproof membrane in many retrofit cases this layer already exists and depending on it s condition water tightness it may or may not need replacing.

Earth pledge starting from the existing roof deck and moving up the typical layers of a green roof system are. First of all your installation ends before any green roof construction begins. Cities are expanding and the global population is growing steadily. Green roofs also referred to as vegetated roofs eco roofs and roof gardens consist of a layer of vegetation that covers an otherwise conventional flat or moderately pitched roof.

The course will be launched at the fifth annual international greening rooftops for sustainable communities conference april 29 may 1 2007 in minneapolis. There are many types of waterproofing membrane. And to ensure the appropriate green roof assembly relative to the membrane chosen is provided it is important to understand how they work and how they are installed. From a waterproofing perspective you may want to consider the following draw the line between waterproofing and the green layers.

The green roof segment harbours a great deal of potential and will become increasingly significant as climate change continues. Although there is a wide variety of options to build them we re presenting a system composed of a mortar base a layer of asphalt emulsion two waterproof asphalt membranes a drainage. Layers of a typical green roof. They fall into three main categories extensive intensive and semi intensive.

A green roof is generally a complex build up system involving several layers each with its own specific function.