Use a utility knife to score the tiles then a putty knife to loosen and pull loose a tile for inspection image 1.
Replace single ceiling tile.
We simply removed all tiles in that corner to install replacement tiles.
Before you work on a ceiling that old contact your regional epa office state environmental office or local health department for advice on testing and handling.
Unlike drop ceiling acoustic tiles that fit into a suspended frame most interlocking tiles are mounted on the ceiling with nails staples adhesive or a combination of the three.
The replacement tiles have two sides with an extended lip for stapling to the framework as well as a recessed groove for the lip of the tile next to it see first photo below.
If they re glued directly on it will take some extra effort to remove them.
Investigate how the ceiling tiles are attached.
For a quick update pop old tiles out of the ceiling grid and replace with fresh ones.
Fortunately our damaged ceiling tiles were in a corner of the basement used as a laundry room.
With this style you won t need to purchase additional cross tees just pop out the old ceilings and place in the new.