>>When you say 3" green roof are you referring to soil depth? Yes that is correct. Gennaro Brooks-Church EcoBrooklyn.com 347-244-3016 22 2nd St., Brooklyn. This email was sent from my phone. On Jan 24, 2013, at 10:15 PM, Tim Brown <tim34 at optonline.net> wrote: > When you say 3" green roof are you referring to soil depth?