What is solid plastering in construction?

In New Zealand construction terminology, solid plastering refers to a traditional method of finishing exterior and sometimes interior surfaces of buildings. It involves applying a layer of plaster directly onto a substrate, such as masonry or concrete, to create a durable and decorative finish.

Here are some key characteristics and components of solid plastering in New Zealand:

  1. Substrate preparation: Before applying the plaster, the substrate is typically prepared by ensuring it is clean, structurally sound, and free from any contaminants that could affect adhesion.
  1. Basecoat: A basecoat is applied to the substrate to create a smooth and even surface for the final plaster layer. The basecoat is often a mix of sand, cement, and additives, which is troweled or sprayed onto the substrate.
  1. Reinforcement: In solid plastering, a layer of reinforcement is embedded within the basecoat to enhance its strength and prevent cracking. Reinforcement can be in the form of metal mesh or synthetic mesh, depending on the specific requirements and project specifications.
  1. Finishing coat: Once the basecoat has sufficiently cured, a finishing coat is applied on top. The finishing coat is a thinner layer of plaster that provides the desired texture and aesthetic appearance. Plasterers can use various techniques and tools to achieve different finishes, such as smooth, textured, or patterned surfaces.
  1. Curing and protection: After the plaster has been applied, it needs time to cure and harden properly. During this time, it’s important to protect the plaster from excessive moisture or damage that could affect its integrity.

Solid plastering is often used in residential, commercial, and heritage construction projects in New Zealand. It can provide a visually appealing and weather-resistant finish to buildings while also offering additional insulation and protection to the underlying structure.

It’s worth noting that with the rise of lightweight construction materials, such as plasterboard or drywall, solid plastering is less commonly used for interior wall finishes in modern construction. However, it remains a popular choice for exterior surfaces or where a more traditional aesthetic is desired. Reach out to the team at Your Plasterers Auckland to find out more.