Maintaining the common areas of an apartment complex is a crucial responsibility for any Body Corporate (or Owners Corporation). While plastering might be seen as a cosmetic task, for large-scale residential buildings in Melbourne, quality plastering is essential for structural integrity, fire safety, acoustic compliance, and long-term property value. Getting plastering right the first time ensures efficiency and durability, saving time and costs in the long run.
In this article, we’ll cover the key aspects that Body Corporates should be aware of when managing plastering projects for their apartment complexes.
Understanding the Legal Responsibilities of Body Corporates in Melbourne
Legal Definition of Common Property
In Victoria, under the Owners Corporation Act 2006, common property refers to areas within a building or land that are not part of an individual owner’s private lot. This includes shared spaces such as foyers, hallways, stairwells, lifts, basements, and external walls. The Body Corporate is legally responsible for maintaining and repairing these areas.
Here’s a quick breakdown of what falls under common property:
| Common Property | Examples |
| Shared internal spaces | Hallways, foyers, stairwells, lifts |
| External areas | Roofs, external walls, balconies |
| Subterranean areas | Basements, underground car parks |
Failure to maintain these areas properly can result in legal disputes and potential enforcement by authorities such as VCAT or the Office of the Commissioner.
Key Areas to Maintain: Foyers, Hallways, and Stairwells
Foyers, hallways, and stairwells are highly visible and need proper plastering to maintain both safety and aesthetics. These common areas must comply with National Construction Code (NCC) standards, which include fire safety and acoustic compliance.
These spaces are essential for safety and must meet legal and technical standards to ensure the safety and comfort of residents.
The Technical Aspects of Apartment Common Area Plastering
Why Quality Plastering Matters in Multi-Dwelling Complexes
Plastering in commercial-scale residential buildings is a technical task that requires compliance with Australian standards. Under the National Construction Code (NCC), plastering must meet requirements for fire safety, acoustics, and moisture resistance. Here’s why getting plastering right is vital:
| Aspect | Importance |
| Structural Integrity | Proper plastering ensures long-lasting stability of the building. |
| Fire Safety | Fire-rated plasterboards must be installed in stairwells, service ducts, and between separate units to prevent fire spread. |
| Acoustic Compliance | Acoustic separation between apartments is crucial for privacy and comfort. |
In Melbourne, where apartment complexes are common, plastering needs to adhere strictly to these standards to prevent issues such as fire hazards or noise complaints.
Fire Safety in Common Areas: Meeting BCA Standards
In multi-dwelling complexes, plastering is integral to fire safety. The Building Code of Australia (BCA) requires the installation of fire-rated plasterboard systems in common areas like stairwells and service ducts. These fire-resistant systems ensure that, in the event of a fire, the spread of flames is delayed, allowing residents time to evacuate.
Fire-rated plasterboard is tested under AS 1530 to ensure its durability and resistance in fire situations, with the most common requirement being a 60 to 90-minute fire-resistance rating. Failure to comply with these standards can have serious consequences, including voided insurance policies and compromised safety.
Acoustic Compliance and Sound Insulation
In Melbourne, where apartments are stacked close together, sound insulation plays a key role in ensuring residents’ privacy. The BCA mandates minimum sound ratings for walls and floors between apartments. Acoustic-rated plasterboards, insulation, and proper joint finishing techniques ensure that noise transfer is minimised.
Here are some key aspects for acoustic compliance:
| Factor | Description |
| Plasterboard | Acoustic-rated plasterboard to reduce sound transfer. |
| Insulation | Specialised insulation materials for soundproofing between units. |
| Installation | Proper joint finishing and sealing to prevent sound leaks. |
In my experience, incorrect installation or skipping key materials can lead to complaints and legal disputes. For example, one Body Corporate in St Kilda had to re-do the plastering in their building after residents complained about noise disturbances due to improperly installed acoustic boards.
Moisture Resistance in Melbourne’s Climate
Melbourne’s damp winters can increase moisture levels in common areas, such as basements and ground-floor lobbies. Standard plasterboard does not provide the necessary resistance to moisture in these areas, which can lead to issues like mould growth, swelling, and structural rot.
Moisture-resistant plasterboard is essential in such environments. Here’s why:
| Area | Key Considerations |
| Basements | Use moisture-resistant plasterboard to prevent water damage. |
| Ground-Floor Lobbies | Ensure correct substrate selection to avoid mould growth. |
| Car Parks | Moisture-resistant products help maintain structural integrity in these high-moisture zones. |
Common Mistakes Body Corporates Should Avoid
Inadequate Surface Preparation
In my years of plastering experience, one common mistake I see is inadequate surface preparation. Skipping essential steps like cleaning and levelling the base surface can lead to cracking, bubbling, and adhesion failure within weeks of plastering.
For instance, I worked on a Melbourne apartment building where the plastering was rushed, and cracks began to appear just weeks later. The solution? Proper surface preparation would have cost less in both time and money.
Incorrect Product Substitution
Some Body Corporates opt to substitute specialised fire-rated or moisture-resistant plasterboard with standard plasterboard to save money. This can lead to non-compliance with building codes and can be a major risk to safety and long-term property value.
Uneven Application and Improper Joint Finishing
Uneven application of plaster or improper joint finishing can result in visible defects. On large hallway spans, uneven plaster thickness will show up as waves or ripples under harsh lighting. This can give the common areas a subpar look and feel, which is problematic when trying to maintain a building’s value and reputation.
The Melbourne Climate’s Effect on Plastering Projects
Managing High Humidity in Winter
Melbourne’s damp winter conditions can drastically slow down plaster drying times, making it more susceptible to mould growth if not properly managed. In one project, plaster applied during a particularly wet winter took too long to cure, leading to significant delays and costly rework.
Top tips for managing plastering in winter:
- Use moisture meters to check for moisture content.
- Allow extra drying time to accommodate high humidity.
- Ensure proper ventilation to aid plaster curing.
Rapid Drying in Summer: Cracking Concerns
Hot, dry summer days in Melbourne can cause plaster to dry too quickly, leading to hairline cracks. Rapid drying can be avoided by using slower-drying compounds and adjusting the application process to prevent cracks.
Winter Challenges and Delayed Curing
Low temperatures slow down plaster curing, which can result in adhesion issues when the painting stage is rushed. For projects in winter, it’s critical to allow plaster extra time to cure before moving forward with painting to avoid peeling and uneven finishes.
Managing Plastering Maintenance and Renovations in Your Apartment Complex
Identifying Routine Maintenance vs. Structural Defects
Body Corporates often struggle to distinguish between routine maintenance and structural defects. For example, if a water leak from a common area balcony damages an apartment’s plaster, the repair responsibility usually falls to the Owners Corporation. However, if the leak originates from an internal pipe in a private lot, the repair is typically the owner’s responsibility.
Understanding the Approval Process for Major Works
Significant plastering alterations, like redesigning a foyer, usually require a Special Resolution (75% of votes) if the cost exceeds certain thresholds, typically double the annual fees. For smaller repairs under $3,000, approval can be granted at a standard meeting.
Choosing the Right Plastering Contractor
It’s important to engage licensed, insured commercial plasterers who are experienced in large-scale projects. A qualified contractor will:
- Provide material certifications for fire and acoustic compliance.
- Use modern technology like laser levels and moisture meters.
- Maintain safety standards, including dust management and height safety.
Long-Term Value: Why Proper Plastering Maintenance Saves Money
Avoiding Cost Blowouts and Delays in Permits
When plastering is rushed or done incorrectly, it often leads to rework, which can escalate costs and delay occupancy permits. The long-term cost of fixing poor plastering is far higher than getting it right the first time.
Protecting Property Value with Professional Plastering
Quality plastering helps maintain the building’s aesthetic appeal, preserving property value. Poor plastering, on the other hand, can be flagged by building inspectors during pre-purchase inspections, which could lead to stalled sales or a reduction in property value.
For Body Corporates managing apartment complexes, plastering is much more than a cosmetic concern—it’s a key element of building safety, compliance, and long-term value. By ensuring quality workmanship, adhering to building codes, and selecting the right contractor, committees can safeguard the property and improve the living experience for residents.
