Although batt insulation is fairly lightweight it can put an undue amount of stress on flimsy drop ceiling tiles and break them.
Insulation above ceiling tiles.
2d extend insulation into joist space to reduce air flows.
If you have fiberglass tiles you ll need to replace them before proceeding.
Adding insulation to a dropped ceiling is a straightforward process but because the ceiling grid is somewhat hampering use 4 foot insulation batts instead of longer rolled batting.
Fiberglass ceiling tiles cannot support the weight of insulation.
Rockwool stone wool insulation is an ideal material to be used in interior ceiling floor partitions where sound absorbency and fire resistance is required.
In finished attic rooms with or without dormer insulate 2a between the studs of knee walls 2b between the studs and rafters of exterior walls and roof 2c and ceilings with cold spaces above.
They are made from a rigid 3 thick fiberglass with a thin vinyl laminated to the face providing a stellar nrc value for noise absorption in the room and a fantastic r value for insulation and noise blocking.