Sequence of Plaster Activity in Primavera P6

Welcome to the second article in the Sequencing Construction Activities series. In the first article, we discussed the masonry activity. Now, in this follow-up article, we will explore the Plastering activity. Construction sequencing is not just about linking tasks in Primavera P6; it’s about reflecting the physical realities on-site, coordinating with multiple trades, and avoiding costly rework or delays. Whether you’re a beginner or refining your planning strategy, this series aims to bridge the gap between software logic and on-site execution.

Plaster in Residential Projects

1. Definition of Plaster in Construction

Plaster refers to a building material used for coating walls and ceilings to achieve a smooth, even, and durable surface. It is typically applied in a wet form, spread over masonry, concrete, or other surfaces, and then allowed to dry and harden. Plaster acts as both a protective layer and a decorative finish, providing a base for paint or other finishes.

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Plaster in residential projects usually involves cement-based plaster for external walls due to its strength and weather resistance.

2. Plaster Types:

Cement Plaster
Gypsum Plaster
Lime Plaster
Clay Plaster

3. Why Plaster Is Used in Construction:

Protection Against Moisture and Weather.
Structural Integrity and Durability.
Surface Smoothness and Finish

Sequence in Primavera P6

1. Method Statement Phase

Why is it needed?

A method statement is essential for ensuring quality, safety, and compliance with specifications. It outlines how the plastering activity will be executed, controlled, and inspected.

Why is a Method Statement important?

To gain approval from the consultant before work starts
To ensure the correct sequence and standards are followed
For quality assurance and traceability on-site

Method statement activity can be followed by shop drawings of the block work, which is mandatory for the plastering works too.

2. Procurement Phase

Why is it needed?

Though plastering uses common materials, the procurement process is still necessary for proper planning, scheduling, and quality control.

Why Procurement is important to show in P6 for the plastering:

To ensure the timely availability of quality materials
To allow for sample approval or mock-up work
To avoid delays due to material shortages or rejections

3. Construction Phase

Plaster is usually split into two activities. The first one is plastering Spatterdash (Splash/Dash Coat) and Dots, and the second is plastering the final layer.

MEP is usually the successor activity to the plastering spatterdash and dots. The plaster spatterdash and dots (first layer) are then applied, and then the final plastering layer (second layer). The plastering final layer is a predecessor to the first coat of paint.

Some planners, while creating the baseline schedule, do not separate the masonry into two activities since they are most likely to happen after each other, so they add only one activity, “Plastering works”, and increase the duration of this activity to cover the two processes.

Summary

More about Planning

To learn more about Advanced topics in Primavera P6, you can enroll in our Professional Planning Engineer (PPE) course.

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