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→Planning Considerations
Detailed inspection and maintenance advice can be found in [http://www.sustainabletechnologies.ca/wp/wp-content/uploads/2016/08/LID-IM-Guide-7.6-Green-Roofs.pdf Sustainable Technologies' LID I&M guide.]
Detailed inspection and maintenance advice can be found in [http://www.sustainabletechnologies.ca/wp/wp-content/uploads/2016/08/LID-IM-Guide-7.6-Green-Roofs.pdf Sustainable Technologies' LID I&M guide.]
<p>The primary operational concern for operating a green roof is the development of a leak. Green roofs protect the roof membrane from UV damage and should increase the lifespan of the roof. However, in the event that a leak is discovered a section of green roof would have to be removed for access. Some proprietary systems appear to be easier to remove and replace. This may come at a cost, as the rainwater retention of the system is somewhat reliant on continuous coverage of the green roof surface. </p>
<p>The primary operational concern for operating a green roof is the development of a leak. Green roofs protect the roof membrane from UV damage and should increase the lifespan of the roof. However, in the event that a leak is discovered a section of green roof would have to be removed for access. Some proprietary systems appear to be easier to remove and replace. This may come at a cost, as the rainwater retention of the system is somewhat reliant on continuous coverage of the green roof surface. </p>
<p>Green roofs should receive as little maintenance as possible. regular inspection is only required to see that the drains are free from obstruction and that the vegetation coverage is adequate. In detailed design , all adjacent areas should be kept free from granular material. Sediment accumulates in gravel edging, which then permits the vegetation to take root and spread.
<p>Green roofs should receive as little maintenance as possible. Regular inspection is only required to see that the drains are free from obstruction and that the vegetation coverage is adequate to prevent wind erosion. During detailed design, all areas adjacent to the green roof itself should be kept free from granular material. Sediment accumulates in gravel edging, which then permits the vegetation to take root and spread. </p>
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Roof Drain.jpg | Example of gravel edging around a roof, which needs weeding.
Red Drain.jpg| Example of gravel edging around a roof drain, which needs weeding.
</gallery>
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