Interior Gypsum & Venetian Plaster

Interior Gypsum Sample Bradleigh Applications

What Are Interior Gypsum Boards?

Gypsum board is the generic name for a family of panel-type products consisting of a noncombustible core, primarily composed of gypsum, with a paper surfacing on the face, back, and long edges. Often called drywall, wallboard, or plasterboard, gypsum board’s noncombustible core makes it different from plywood, hardboard, and fiberboard. When joints and fastener heads are covered with a joint treatment system, gypsum board provide a monolithic surface that is ready for decorative treatment.

Gypsum board walls and ceilings have a number of outstanding advantages:

  • Fire Resistive
  • Sound Attenuating
  • Durable
  • Economical
  • Versatile

Fire Resistive

Gypsum board is an excellent fire resistive material. It is the most commonly used interior finish where fire resistance classifications are required. Its noncombustible core contains chemically combined water which, under high heat, is slowly released as steam, effectively retarding heat transfer. Even after complete calcination, when all the water has been released, it continues to act as a heat insulating barrier. In addition, tests conducted in accordance with ASTM E 84 show that gypsum board has a low flame spread index and smoke density index. When installed in combination with other materials it serves to effectively protect building elements from fire for prescribed time periods.

What is Venetian Plaster

Venetian plaster is a wall and ceiling finish consisting of plaster mixed with marble dust, applied with a spatula or trowel in thin, multiple layers, which are then burnished to create a smooth surface with the illusion of depth and texture. Venetian plaster techniques include marmorino, scagliola, and sgraffito. When left un-burnished, Venetian plaster has a matte finish that is rough and stone-like to the touch. Un-burnished Venetian plaster is also very brittle and damages rather easily.

When applied correctly, Venetian plaster can be used to create a highly polished, rock-hard, marble-like finish. Venetian plaster is especially useful on surfaces where marble panels could not be installed easily, and on surfaces that would be too expensive to have carved from real marble such as columns, corbels, and curved walls.

Venetian plaster can be tinted, or colored using natural or synthetic colorants. The ability to tint Venetian plaster is especially helpful when a specific color of “marble” is desired, or when a color that does not exist naturally is wanted.

Beautiful, durable, breathable and low maintenance finishes

From old world venetian plasters and textured Tuscan stucco to natural stone looks, Variance Specialty Finishes provide the best in design and quality in high-end decorative surface finishes.

Endless color and texture possibilities are made available for the interior and exterior of new or existing structures.