Because of different glues available to install polystyrene ceiling tiles.
Removing polystyrene ceiling tiles.
Use the scraper to remove the adhesive off the ceiling.
Scrape all the polystyrene of first.
Cover everything remaining including the floor with tarps or plastic sheeting to help contain the polystyrene mess you re about to create.
Then ceiling needs to be bonded with a pva such as unibond then plaster useing two coats lay first coat on as tidy as poss then close in with top coat and trowel to a smooth finsh make sure you run water brush round all angles so they are nice and clean and smooth hope some help kind regards col.
Tap it as far under the tile as you can using your hammer.
Then wet the adhesive with warm water leave to soak for 10 mins use a heavy duty scraper with a sharp blade a quicker way is to use a wallpaper stripper.
Removing polystyrene tiles or styrofoam tiles as they are sometimes known from walls or ceilings can be a tedious job and unfortunately there is no easy way of doing it other than getting stuck in with a wide scraper to scrape the tiles off.
Remove as much in the way of furniture and accessories from the room as is reasonably possible.
Polystyrene tiles used to cover ceiling in bedroom image courtesy of homedecorinterior info.
Step 1 removing the tiles.
The ceiling tiles attach directly to the existing ceiling using an adhesive.
Save yourself the arm pain by over stretching on a ladder and attempting to push these tiles off the ceiling in a jerky back and forth motion instead take a wide scraper and use a hammer to gently but forcefully break the bond between the tile and glue pushing them down from the ceiling as you go.
Hi remove tiles just bye scraping of next scrap of as much tile adehesive as poss.
Use the steam to loosen the adhesive that remains on the ceiling.
The beauty is that there are a number of different patterns available and they are not expensive.
Keep in mind that polystyrene tiles are often installed to conceal ceiling damage so you re likely to find holes water spots and other signs of ceiling problems you may not have known about previously when removing polystyrene tiling.
Your aim here is to break the bond between the tiles and the glue or adhesive holding them up.