http://community.webshots.com/album/99438553EStEot
This was taken a few weeks ago. It was the first roof ever done using a Urethane Foam that had the Petroleum in the B-Side replaced with a regrowable source of energy (Soy) as a 3 pound density closed cell. The Cores I cut from roof after have been weighed and are sitting under water (block holding down) for one more week to see if any moisture has been absorbed. You will also find a Pic on the same thread of PICs of a 1.75 Closed cell Spray in plance SoyThane Insulation job.
TH