I'm a renter and would like to put up some curtains over the window in the picture. As a renter, I can't drill holes in the walls. The room dimensions are too wide for an extra long tension rod (3.6m), plus it's not that nice to look at an extra long rod hanging across a wall in the way of a door.
I've tried Gorilla clear mounting tape but that didn't hold on to the brick (I might need more hooks than the two I used). Another option is to use clear epoxy (Araldite) but I fear it'll also not hold on the brick side. I cleaned the brackets with strong isopropyl alcohol but didn't clean the bricks as I wasn't sure it'd make much difference. Maybe it would... Another option is to use clear epoxy (Araldite) but I fear it'll also not hold on the brick side. I know with the epoxy method, I'd need to clean the surfaces with acetone instead of isopropyl alcohol.

