We received funding from the Climate Center to do additional research in combination with our ITC faculty, meaning we can apply additional sensors to measure heat transference through the roof layers. This is scheduled to be installed by August. In the mean time, here is an update on how the different types of roofs faired during their first three months. Overall the vegetation has grown from 0 to 60 cm and attracted many insects.
April
This first month after installation was extremely dry and therefore the blue-green roof was able to thrive the best, as it could use all the precipitation stored in its subsurface layer. The vegetation of the thicker roof, with more moisture trapped in the soil, was next best, and last was the roof with thinnest soil layer. You can also see the weather station on the control roof and some highlights of the first blooming species.
May
In May we had a sprinkler installed for the two green roof types. This clearly made a distinction in the amount of plant growth on the green roofs. Below you can see before and after, on the 1st and 28th of the month.
June
All vegetation on all roof types has grown significantly and is thriving, despite the current heat wave. I added some different perspective photos to showcase the plant height.
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