It covers under the cube. It’s quite flimsy, I use Perspex for the section where the wind direction is from. The hens seem to like it. It’s more a rain shield than wind,
I like these covers, easy to attach and I can see through them
We just purchased and fitted the Eglu windbreak cover and it's made a huge difference. Our hens are well protected from the cold southerlies we've been having and love hanging out underneath the coop in their little conservatory.