What type of gypsum board is typically used in a veneer plaster system?

The type of gypsum board typically used in a veneer plaster system is blueboard. This product is specifically designed to be used with a veneer plaster finish because it features a special paper that bonds well with the plaster, allowing for a smooth and durable surface. The blueboard's surface is also absorbent enough to help the plaster adhere properly, ensuring a quality finish that lasts.

In contrast, greenboard is moisture-resistant and is commonly used in areas prone to humidity, but it is not the ideal choice for veneer plaster systems. Type X board is fire-resistant and utilized primarily in areas requiring additional fire protection, such as between dwelling units or in garages. Regular board, which is the standard gypsum board without any special features, lacks the properties necessary to effectively support a veneer plaster finish.