We are planning to have Sedum Roofing, partly to recieve credit 6.1.
I have read a lot about vegetated roofing also to pursue credit 6.2. I wonder what can be expected from sedum roofing when it comes to the quality of the stormwater running through it. I assume that the water has no TSS in it when falling onto the roof.
My question is:
- What TSS inhold can be expected to be added to stormwater that runs through Sedum?
The intent with my question is to answer the following follow up question:
- What filtering solution is suitible for filtering these TSS?
Thanks in advance
September 26, 2014 - 9:01 am
We have a Sieve analysis for the sedum soil constituents, meaning that the dimensions of the soil particles that would, worst case, be released from the sedum itself - are known.
Would it, in fact, be possible to argue that no TSS from the Sedum would be added to the stormwater after a short period for the Sedum to reach "steady state"? And that only bird excrement and such would factor as the TSS that is being added to the water?