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!style="background: darkcyan; color: white"|Disadvantages
 
!style="background: darkcyan; color: white"|Disadvantages
 
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|Increased water holding capacity, which benefits both vegetation health and stormwater retention <br>Often lighter weight, even when saturated||Increased [[phosphorus]] concentration in runoff water, however this may be mitigated by the reduced runoff volume resulting in a lower loading overall,<br>The lightweight material is more prone to wind erosion, and this should be accounted for in the initial design, alternatives include erosion control blankets, soil tackifiers, or Sedum mats.
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|*Increased water holding capacity, which benefits both vegetation health and stormwater retention *Often lighter weight, even when saturated||
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*Increased [[phosphorus]] concentration in runoff water, however this may be mitigated by the reduced runoff volume resulting in a lower loading overall *The lightweight material is more prone to wind erosion, and this should be accounted for in the initial design, alternatives include erosion control blankets, soil tackifiers, or Sedum mats.
 
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