Assembly of cornices

Saada link Prindi
  • The mouldings are for indoor use only and should not be in direct contact with water.
  • Possible faults in the material can only be claimed back if noticed before fitting!
  • Room temperature and moisture have to be normal. Room’s temperature should be approx 20˚C and air’s relative humidity approx 40%. Basically this means that the walls and ceiling should be dry and the doors and windows should be glazed.
  • Before fitting, you should leave the moulding to acclimatise for 72 hours in the room where it is to be fitted. This will ensure that the mitre cuts do not split after installation. The packaging does not have to be totally removed. It is enough to open the ends of the packaging so that the possible humidity is released
Fitting is neat and easy with screws, nails or a nail gun.  For white moulding, the Maler touch-up paint is great for covering marks incurred whilst fixing.
Adding length to the cornice in the middle of the wall
The most unnoticeable joint is done by mitre cutting the ends of the mouldings to 45 degree angles with the mitre angle facing away from you. Joining the moulding together like this will prevent the joint opening up if the moulding shrinks. See the picture.
Before cutting the mitre angle, cut a small piece off from both ends of the board to ensure the ends are straight.
Installing cornice to the corners of a flat ceiling (Please see the inclined ceiling below)
Cut first two small pieces of moulding (assembly pieces) that will help you to avoid wasting material. Before cutting the mitre angle, cut a small piece off from both ends of the board to ensure the ends are straight. From the picture you can see the assembly pieces from the front and the back.

Lay the coving/cornice on the mitre table as if it would be placed on the ceiling and at a 45 degree angle to saw plane.

The assembly groove that makes fixing easier, should be placed against the mitre table, in other words placed downwards.

When mitre cutting the other cornice, the assembly groove should be upwards and the mitre saw at a 45 degree reverse angle.

For an inclined ceiling the right angles for the mitre cut have to be checked and it is a good idea to use to ceiling’s tilt angle to give you a direction.
Possible problems occurring when the cornice has been placed the wrong way around on the mitre table: a gap in the mitre corner, the cornice feels wider than the other moulding or the pattern does not match.

Measuring the length of the cornice
The 45 degree angle’s longer corner should touch the corner. In the corner the longer part of the angle should face downwards.  The correct length is the measurement taken from the longer corner.

Please note the assembly groove on the backside of the moulding (only in Maler Oy’s cornices).

The assembly groove should be against the ceiling when fixed. This has to be taken into consideration when measuring and cutting the cornice, so that when joined together the patterns will match.