I am being bothered by airplane noise in my home and was thinking to put mass loaded vinyl in the attic to help shield some of the noise. The attic has old fiberglass that is also covered in a layer of loose fill insulation.
Is it acceptable to just lay the vinyl on top of the insulation? I saw this video where the contractor supports the vinyl with metal channel but the amount of loose fill insulation doesn't allow for that in my home.
An alternative approach would be do staple to the roof (on the wooden underside).
Wondering if either of these approaches are acceptable.