Pressed Metal Ceiling With Plaster Cornice

The Lucas Family wanted to retain their old plaster cornice and use pressed metal on the rest of the ceiling.  Pressed metal needs to be nailed up via the use of 12 mm builders ply as a sub strata.  This presented a problem to the Lucas's because the ply could be installed well enough but the depth of it would drop down slightly lower than the depth of the top edge of the cornice.  Mr Lucas solved the problem by using a fancy timber trim between the edge of the ply/metal and the top edge of the cornice.  In effect the timber moulding appears to become part of the cornice and when painted no-one can tell where metal, timber and plaster begin or end.