Installation

Our cornice is easy to install using basic tools and supplies.

Tools required for installation:

1. Tape measure

2. Pencil or chalk marker

3. Mitre box

4. Fine-toothed handsaw or hacksaw

5. Caulking gun

6. Acrylic / water-based adhesive

7. Painter’s tape

8. Putty knife or spatula

9. Damp sponge

10. Water-based paint & brush

 

Preparation:

  • Ensure all surfaces where the cornice will be installed are clean, dry, and free from dust or grease.
  • Mark the wall and ceiling as guidance for straight and level installation. Note that ceilings aren’t always level, so it is not wise to only use your ceiling as a guide.
  • For floating cornice being installed in a new build, it is recommended to paint the surface where the cornice will cast the shadowline or LED wash, as It may be hard to reach with a brush or roller once cornice is installed.
  • It is also recommended to give the cornice product their first coat of paint prior installation, to ensure that the back of the cornice is covered

 

Cutting the Cornice:

  • Measure and mark the desired length.
  • Use a mitre box to make precise angle cuts for corner joints. Straight cuts are appropriate for simple butt joins.
  • Ensure measurements and cuts are accurate.

 

Applying Adhesive:

  • Load a construction adhesive cartridge into a caulking gun, if using a tube-based adhesive.
  • Apply a continuous bead of adhesive along the top and bottom edges of the cornice where it will contact the wall and ceiling, ensuring it covers the entire length. If not using a tube-based adhesive, use a flat spatula or pallet knife to evenly apply sufficient adhesive.
  • Apply additional adhesive to any joints or corners.

 

Installing the Cornice:

  • Press the cornice firmly into place against the ceiling and wall, aligning it with the marked guidelines.
  • Press along the length of the cornice to ensure that the adhesive makes contact with the surfaces.
  • In the event of uneven ceiling or wall surfaces, maximise the contact points between the cornice and both surfaces while ensuring the cornice remains sufficiently straight.
  • Hold in place for a few seconds to allow the adhesive to bond. For heavier profiles strips of tape may be used to keep the cornice in place while adhesive dries.
  • Wipe visible excess adhesive on joints with the damp sponge.
  • Repeat the process for each section of the cornice, ensuring proper alignment and tight joints.

Joining the Cornice:

  • For butt joins and miters, apply adhesive to the edges of the cornice pieces that need to joined, and press together. Smooth over and wipe away excess adhesive with a damp sponge.
  • Butt joins can be done using the straight edges of the cornice as is for a simple join
  • In the event of uneven surfaces across corners, join the cornice together for a clean match.
  • Consider sticking corner pieces together prior to installation, where possible.

Finishing Touches:

  • If required joins can be finished with a solvent free, lightweight filler, and lightly sanded to smooth over.
  • Fill any large gaps or joints with a compatible solvent-free acrylic caulking compound using a scraper or finishing tool
  • Allow the filler and caulking compound to dry completely according to the manufacturer’s instructions.

Painting the Cornice:

  • Use painter’s tape to protect adjacent surfaces from paint.
  • Choose a high-quality, acrylic or water-based paint – ensure that the paint is solvent free.
  • Apply the paint evenly using a paintbrush, following the manufacturer’s instructions.
  • Allow the paint to dry thoroughly before applying additional coats if required.

 

IMPORTANT: DO NOT USE SOLVENT BASED ADHESIVE, PAINT OR CLEANING MATERIAL


Cutting the Cornice

For the Soft-Glow range, lay the cornice
flat with the ceiling edge down into a 130mm miter box and cut at a 45-degree angle.

For the Pure Shadow range, lay the
cornice with the flat ceiling-facing surface down, and the wall flat against
the back of the box, and cut at a 45-degree angle.

Compatibility Table

Cornice.net.au