You may be lucky and find that they come off.
Removing polystyrene roof tiles.
The ease of removing polystyrene ceiling tiles is inversely proportional to the diligence and quantity of adhesive with which they were applied.
Use the steam to loosen the adhesive that remains on the ceiling.
Polystyrene tiles used to cover ceiling in bedroom image courtesy of homedecorinterior info.
Use the scraper to remove the adhesive off the ceiling.
Hi remove tiles just bye scraping of next scrap of as much tile adehesive as poss.
Slide your wide scraper between the ceiling.
Set up a sturdy stepladder in one corner of the room.
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.
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.
It is all spread around the ceiling in patches.
Because of different glues available to install polystyrene ceiling tiles.
I had to remove the polystyrene ceiling tiles throughout the entire house and i manage to make it painless and fast.
Before you get down to it you need to get the room ready for what is a major and messy job.
The tiles came off easily enough but the glue used to put them up is still on the ceiling.
This video from bunnings shows you how to take a tile off and replace it prop.
Getting rid of the remaining adhesive.
Step 1 removing the tiles 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.