Oh no....you have many more options than fiberglass batts.
Firstly, you either want soundproofing or you want cheap NON-soundproofing.
Remove all the drop-in ceiling tiles.
If you have a concrete slab above you need to attach 3"x2" wood battens to it through special rubber insulators. Then fix 3" fibreglass insulation between the battens before fixing 2 layers of 5/8" plasterboard (Fyrchek) to the battens making sure no contact is made to the walls at the ceiling junction. Fill this 1/4" gap with silicone sealant.
If you have timber joists above, the best way is to span a separate timber structure to support the same ceiling as described above.
Alternatively you can attach timber battens cross-wise to the joists again through special rubber insulators and repeat the ceiling structure above.
Firstly, you either want soundproofing or you want cheap NON-soundproofing.
Remove all the drop-in ceiling tiles.
If you have a concrete slab above you need to attach 3"x2" wood battens to it through special rubber insulators. Then fix 3" fibreglass insulation between the battens before fixing 2 layers of 5/8" plasterboard (Fyrchek) to the battens making sure no contact is made to the walls at the ceiling junction. Fill this 1/4" gap with silicone sealant.
If you have timber joists above, the best way is to span a separate timber structure to support the same ceiling as described above.
Alternatively you can attach timber battens cross-wise to the joists again through special rubber insulators and repeat the ceiling structure above.