I am taking it up using tacks, and reinforceing it where im taking it with duct tape. my question is, do i tack it up semi tight like a poster or loose loose loose>? thanks
I use velcro, one square in each corner. Stick one part on the wall and the other part on the back of the mylar. Then you can re-adjust easily as much as you want. And you want it tight, as few wrinkles and as much of a mirror-like finish as possible. If you are going to use tacks or staples then I do suggest putting a piece of duct tape on the back that you tack or staple through, this will help keep the mylar from ripping.