is it worth it?

[forestb]

I had a headliner installed in my truck with a heat shield backing. The upholsterer used sticky back velcro to keep it up. over the fairly hot weekend the sticky back became less sticky than it needs to be. We are going to try a stronger adhesive but I am skeptical of whether it will work. My question is. Is it worth it to drill holes in the roof/ceiling in order to keep it up. I am fine with how it looks without it but would really like to have the heat shield.