The pavers are installed on our green roof

It took a long hard weekend, but the pavers are installed. We put in two circles --- about 8 ft each --- and a quarter circle in one of the corners.

The remainder of the roof surface will be planting boxes, made from treated 1x4 lumber in a grid of about 24" x 30". Actual dimensions will be to-fit. Each box will have fiberglass window-screen on the bottom to retain the planting mix, and window -screen on the top to keep the planting mix in the box, rather than being blown (or splashed) around the driveway and yard. We'll cut small Xs in the top screen so that we can plant, and within a year or so, the entire surface should be covered so that the boxes and screen will no longer be visible.

The boxes start this week, weather permitting. Everything is now on-hand, except for the window-screen destined for the tops of the boxes. That should arrive today by UPS.

Actually, the planting boxes will not cover the entire roof surface. We will install access paths to the boxes using the leftover pavers and river rock. We intend to create a dry stream of river rock (over a runner-style length of EPDM) across the roof to move the rainwater from one gutter system to that of the garage. And finally, we've got a small water feature planned for the "headwaters" of the dry stream that we hope will provide a constant trickling sound in the background.

I spent part of Sunday afternoon, propagating sempervivums and more sedums. I think that there are now 12 flats of 72 cells of plants destined for the roof. More on plant selection as the boxes get planted.