The following test and video demonstrate the value of prevegetation. Prevegetated LiveRoof modules are capable of resisting high speed winds. This likely is not true of sparsely vegetated green roofs.
This test is not intended to address wind uplift issues, which are entirely separate issues that should always be addressed by a competent engineer.
LiveRoof, LLC
Subsidiary of Hortech, Inc.
P.O. Box 533
Spring Lake, MI 49456
(800) 875-1392
fax (616) 842-3273