I had to take down the roof shade experiment over the weekend. We had a monsoon and I was wondering what that thuding sound was on the roof when it hit me. It was the concrete cinder blocks moving around. The monsoon winds got under the roof shade and was able to lift the block up and down.
When I got up there it didn’t look like the blocks moved at all. I think that they were barely lifting and then dropping creating a really dull thud. I only had a 5′ x 6′ size roof shade up there. I imagine that if it was bigger that it would have been able to shift the blocks around.
I never got a real chance to measure the ceiling temperatures or the roof temps. I’ll have to go back up and try it another day. Maybe after monsoon season.