These months we had some extremes in terms of drought but also in terms of short intense rainfall, and it remains rather obvious visually which roof seems to adapt the best. We also had a visit from installation company Dakbloemenweide, now named Wildr, to see how the roof was doing. And it was doing better than any of their other installed roofs! That was fantastic news. Below you can see photos from these three months; the order of pictures is first the extensive roof, then the slightly more intensive roof, then the blue-green roof, and occasionally also the reference roof.
Early August shows the impacts of drought are the heaviest on the standard green roofs that have nearly no capacity to hold water, whereas the blue-green roof seems relatively fine.
By mid and the end of August all roof types were heavily affected by drought, though still some species were blooming.
September had more rain and allowed for different species to grow and bloom, among which the easily recognizable clover. These photos are taken 1 week apart every time. It might take some time for the roofs to reach their pre-drought level of green, but insects are enjoying all the roof types.
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