Portland Ornamental Plaster Repair Slide Show Click on an image to start the slide show and learn more about this project. The result of a fire, the plaster in this room was badly damaged including much of its decorative plaster cornice and ornate ceiling.First, the flat plaster was repaired. The area had been removed, and was infilled with a 3 coat plaster system matching the original plaster work. Here the first coat (scratch coat) has been applied.Craig applies the second coat to the patch area.The patch has received its third and final coat which is setting up. The first level of cornice has been run next to the ceiling and wall intersection.A special knife was created to match the profile of the cornice. The cornice is then run either in place using rails, or on a workbench and installed later.Here is an example of some of the cornice being run on a bench. It will be installed later.The cornice has been run and installed. Now the decorative Egg and Dart must be cast separately.A mold is cast from some original decorative plaster. Peter is pouring casting plaster into the mold to create the Egg and Dart pieces.A new piece of Egg and Dart is removed very carefully from its mold.A decorative roundel is run much like a cornice. A knife is created and run in a circular pattern.Dental tools and anything else that will work are used for final touch ups of the ornamental work.Peter installs a decorative piece using screws and plasterAll decorative pieces have been cast, run and installed. The area is ready for painting.Restoration complete!