A veneer is, by definition, a thin covering. In this case, it is a thin covering of plaster over gypsum board or other material. The process has some advantages over the standard technique of fastening drywall to studs and using a plaster mud to cover nail or screw holes and tape the seams. Veneer plaster is applicable only for interior projects.
Joint Materials
Veneer plaster systems use metal beads and mesh tape as supports over corners and seams. These pieces are commonly nailed or screwed in place before the veneer plaster is applied. The corner beads provide a stronger subsurface than the tape corners often associated with standard drywall. This limits the inadvertent damage to the corner if it is struck, although the covering veneer plaster may still be chipped.
The Plaster
The plasters used in a veneer plaster can be applied in either one or two coats, depending on the product. Two-coat veneers require more labor and materials but are more resistant to cracks.
Advantages
Veneer plaster installs more quickly than the standard drywall methods of mudding seams and nail holes. The veneer wall finish can be smoother with less noticeable nails and seams if applied by an expert. This makes the veneer plaster wall finish advantageous if the wall will not be textured but instead left smooth. Some forms of veneer plaster can be applied directly over concrete or block walls.
Disadvantages
Veneer plaster walls require a higher level of expertise than other drywall finishing methods. The application of the veneer plaster is considered a wall or ceiling plastering project. The project also requires the use of special wall board materials fabricated with a water-absorbent face paper. This can provide a less rigid wall than standard drywall construction techniques
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