2 May 2012
- 04:5704:57, 2 May 2012 diff hist +119 FOTD living green roof →Problem statement
- 04:0804:08, 2 May 2012 diff hist +1,144 FOTD living green roof →Costs: Added new values to chart
- 03:3303:33, 2 May 2012 diff hist −240 FOTD living green roof →Costs: Updating chart format