While convenient, many styles of ceiling tiles are not pretty. If the roof is covered with roof tiles or falling tiles White, bored, you can arreglarles by cloth or paper colored tiles decoupage above. The decoupage may also cover the stains on the tiles. If you have a decorative drop ceiling tiles, it may be easier to demolish every single tile to cover it.
Instructions to fix decorative drop ceiling tiles: cut enough pieces of paper or fabric to cover the tiles. Work a ceiling tile at a time or record at a time per person. Stand on a ladder if you cannot take the chips down. PVA glue smooth on the tile using a brush or roller, depending on the size of the tile.
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Lay the cut fabric or paper on top of the tile. Has Lisa flat so no creases or bubbles between the paper and the tile. Keep working until the tile is sufficiently covered in paper or cloth.
Apply another layer of glue over the paper to seal their flat edges and prevent peeling. Let the glue dry overnight. Repeat the process on the remaining tabs. The polyurethane layer on the decorative drop ceiling tiles adds a layer of gloss.