Does anyone have any experience with applying sound deadener to the roof? Specifically, when it gets to a million degrees in summer. I have 2 concerns: 1) will it peel off from gravity and fall down? Or 2) will the glue start to liquify and seep down and contaminate the healiner with marks? I plan to just put some fabric directly over the sound deadener for a headliner, held up by magnet bars in the grooves of the roof.
