Vegetative Roof Waterproofing for Long-term Performance: Two types of green roof assemblies with waterproofing membrane systems

February 14, 2014

by Brian Kelly
Landscaped green roof assemblies include both built-up systems and eco-roof tray systems. Either type may also include an insulating layer. Eco-roofs incorporate drainage, filtration, retention, and irrigation within one component.

Built-up assemblies, on the other hand, include the waterproofing membrane, insulation, drainage mat, retention mat, filter sheet, and growing media. Some manufacturers offer a single-source warranty covering all the components, including the plantings.

There are various materials used in green roof assemblies. Certain membranes contain plasticizers that may leach. A slip-sheet or insulation between the membrane and growing media can prevent this.

This is an eco-roof assembly. [CREDIT] Photos courtesy Kemper System America Inc. [1]
This is an eco-roof assembly. Images courtesy Kemper System America Inc.
This is a built-up assembly. [2]
This is a built-up assembly.

 

 

 

 

 

 

 

To read the full article, “Vegetative Roof Waterproofing for Long-term Performance,” click here[3].

To read the sidebar, “Vegetative Roof Waterproofing for Long-term Performance: 850 Third Avenue, New York, NY,” click here[4].

Endnotes:
  1. [Image]: http://www.constructionspecifier.com/wp-content/uploads/2015/02/Eco-Roof-Green-Roof-Assembly.jpg
  2. [Image]: http://www.constructionspecifier.com/wp-content/uploads/2015/02/Built-Up-Roof-Green-Roof-Assembly.jpg
  3. here: http://www.constructionspecifier.com/masterformat/vegetative-roof-waterproofing-for-long-term-performance/
  4. here: http://www.constructionspecifier.com/masterformat/vegetative-roof-waterproofing-for-long-term-performance-850-third-avenue-new-york-ny/

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