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If you have a plaster wall finish or if you've just completed drywalling, adding the touch of a plaster, wood or polyurethane ceiling rose, also called ceiling medallion, can make a dramatic impression, especially in a dining room or living room. The method for installing a ceiling rose is fairly similar for each type of material — shown below is the installation of a plaster ceiling rose. Follow all manufacturers' instructions for the material you choose.
Use a detector to find the joists nearest your chosen point for the rose. Mark their position and the direction in which they run.
Hold the rose in position and mark where the joists cross it. Also draw a pencil guide line on the ceiling around the rose’s circumference.
Drill holes for attachments in the areas that will align with the joists. Use a slow drill speed to avoid cracking the rose.
Enlarge the entrances to the attachment holes with a countersink bit (Image 1). Again, be sure to use a slow drill speed. Withdraw the countersink bit when a hole is large enough to accommodate the heads of your chosen attachments (Image 2).
Excerpted from Do It Yourself Home Improvement
© Dorling Kindersley Limited 2009