What is the Perlite Plaster Unit Price Item (Poz)?

The perlite plaster "poz" (unit price item) is a standard work item used in construction projects to establish unit prices, quantities (metrage), and technical descriptions. It is generally used during the exploration, bidding, and progress payment processes.

Definition of Perlite Plaster Unit Price Item

The perlite plaster item is a unit price entry that covers the preparation and application of cement-based, perlite-aggregated plaster providing thermal and sound insulation, as well as surface leveling works.

Scope of the Item (Standard Description)

The perlite plaster item generally includes the following works:

• Cleaning and preparation of the surface
• Preparation of the perlite plaster mortar
• Application of the plaster to the surface
• Gauging (screeding) and surface smoothing
• Application of a second coat where necessary

Perlite plasters are generally applied in layers of 1 – 1.5 cm.

Technical Specifications (Item Content)

• Material: Perlite aggregated cement-based plaster
• Density: Lightweight (in the range of 300–350 kg/m³)
• Thickness: 2 – 5 cm (depending on the project)
• Fire Class: A1 (non-combustible)
• Thermal Conductivity: Low

Perlite Plaster Quantity (m² Calculation)

Average consumption:

• 1 cm thickness → 4 – 6 kg / m²
• 3 cm application → 12 – 18 kg / m²

👉 Quantity calculation: Total area (m²) × thickness (cm) × consumption rate