Plasterer Course

Lesson 1 • History and Scope of Plastering

Traces plastering from ancient lime renders to modern gypsum systems. Establishes why historical context informs current material choices and techniques.

Lesson 2 • Workplace Safety and PPE

Covers mandatory personal protective equipment and site hazard identification. Connects safe habits to regulatory compliance and injury prevention.

Lesson 3 • Reading Plans and Specifications

Teaches interpretation of architectural drawings and finish schedules. Students extract material types, thicknesses, and area measurements from documents.

Lesson 1 • Substrate Compatibility

Identifies how different backgrounds absorb moisture and affect adhesion. Students match plaster systems to masonry, concrete, and board substrates.

Lesson 2 • Aggregates and Fillers

Explains how aggregate particle size and shape affect workability and finish texture. Students calculate mix ratios by volume and weight.

Lesson 3 • Material Storage and Handling

Establishes correct storage conditions to prevent premature setting and contamination. Students apply first-in, first-out stock rotation on site.

Lesson 4 • Cement and Lime Renders

Covers hydraulic lime, Portland cement, and blended render binders. Students understand carbonation, shrinkage, and crack control in cementitious systems.

Lesson 1 • Cleaning and Degreasing Surfaces

Covers mechanical and chemical methods to remove dust, oil, and efflorescence. Clean surfaces are prerequisite to bonding agent application.

Lesson 2 • Surface Assessment and Testing

Teaches visual inspection, tap testing, and moisture meter use to evaluate substrates. Accurate diagnosis prevents adhesion failure in subsequent coats.

Lesson 3 • Fixing Lath and Mesh Reinforcement

Explains when and how to install metal lath, fiberglass mesh, and movement beads. Reinforcement prevents cracking at stress points and material transitions.

Lesson 4 • Applying Bonding Agents and Primers

Demonstrates correct dilution, application, and drying of bonding agents on low-suction surfaces. Students select the right primer for each substrate type.

Lesson 1 • Mixing Plaster to Correct Consistency

Demonstrates water-first mixing technique and consistency testing for browning and finish coats. Correct consistency directly controls workability and setting time.

Lesson 2 • Applying Finish Plaster Coat

Teaches timing the finish coat over a firm browning coat and achieving a smooth, closed surface. Students practice troweling in stages as the plaster stiffens.

Lesson 3 • Finishing Angles and Reveals

Demonstrates forming sharp internal and external angles and window reveals using angle beads and feathering. Neat angles define the quality of finished plasterwork.

Lesson 4 • Plastering Ceilings

Adapts wall techniques to overhead work, addressing gravity-related challenges and fatigue. Students use correct body position and staging to maintain quality.

Lesson 1 • Texture Finish Techniques

Teaches scraped, tyrolean, roughcast, and sponge float finishes on external render. Students match texture to design specification and exposure requirements.

Lesson 2 • Applying Scratch and Float Coats

Demonstrates applying and combing the scratch coat, then floating the second coat to a true plane. Correct intercoat timing prevents delamination.

Lesson 3 • External Render Mix Design

Covers mix proportions for scratch, float, and finish coats in external render systems. Students adjust mixes for exposure zone and substrate suction.

Lesson 4 • Control Joints and Beads

Explains placement of movement joints, stop beads, and drip profiles in external render. Correct detailing prevents cracking and water ingress.

Lesson 1 • Plasterboard Types and Selection

Identifies standard, moisture-resistant, fire-rated, and acoustic plasterboard grades. Students select the correct board for each application based on performance requirements.

Lesson 2 • Fixing Plasterboard to Framing

Covers screw spacing, noggin placement, and board orientation for stud and ceiling framing. Correct fixing prevents board movement and joint cracking.

Lesson 3 • Taping and Jointing Technique

Demonstrates embedding tape, applying joint compound in multiple coats, and feathering joints. Students build flat, invisible joints through progressive coat application.

Lesson 4 • Skim Coat Over Plasterboard

Teaches applying a thin finish plaster skim directly to plasterboard for a smooth surface. Students control coat thickness and troweling sequence to avoid ridges.

Lesson 1 • Venetian and Polished Plaster

Demonstrates multi-layer application and burnishing of marble-effect polished plaster finishes. Students control colour, translucency, and sheen through layering technique.

Lesson 2 • Running Cornice and Moldings

Teaches forming cornice profiles in situ using a running mould and gauged plaster. Students set out, run, and mitre cornice returns accurately.

Lesson 3 • Textured and Feature Wall Finishes

Covers skip trowel, sand swirl, and combed texture techniques for interior feature walls. Students replicate specified textures consistently across large areas.

Lesson 4 • Restoration of Heritage Plasterwork

Teaches lime-based repair methods compatible with historic plaster systems. Students analyse original materials and replicate profiles without damaging adjacent fabric.

Lesson 1 • Site Documentation and Handover

Covers completion checklists, photographic records, and handover documentation for plastering works. Accurate records protect both contractor and client.

Lesson 2 • Estimating and Job Costing

Teaches area takeoff, material quantity calculation, and labour hour estimation for plastering projects. Students produce accurate quotes that cover costs and margin.

Lesson 3 • Remediation and Making Good

Demonstrates cutting out, bonding, and patching defective plaster to match existing surfaces. Students select repair materials compatible with the original system.

Lesson 4 • Diagnosing Common Defects

Identifies causes of cracking, delamination, efflorescence, and grinning in plasterwork. Root-cause analysis guides correct remediation rather than cosmetic repair.