Mould Remediation Orange NSW

Mould Remediation in Orange NSW Bank

When we think about banks, the images that come to mind are of robust security, meticulous record-keeping, and integrity. However, an unseen, silent threat is challenging this perception: mould. A recent inspection within a significant banking facility highlighted this hazard, revealing disturbing levels of mould contamination.

Unmasking the Adversary: What We’re Up Against

Our recent tests brought two formidable mould strains to the fore: Aspergillus/Penicillium-like and Chaetomium. Their benign-sounding names are in sharp contrast to the severe health risks they pose.

Chaetomium, while less commonly spoken about, is no less dangerous. Besides skin and nail infections, it’s a source of carcinogenic mycotoxins. When ingested or inhaled, these mycotoxins can wreak havoc on human health, leading to severe complications.

On the other hand, the ubiquity of Aspergillus makes it a formidable adversary. While many strains of this mould are harmless, a few can be disastrous. Those with compromised immune systems or pre-existing health conditions become easy targets, with symptoms ranging from mild allergic reactions to severe respiratory problems.

The Bank’s Structure: A Breeding Ground?

Why would a banking facility, which thrives on its reputation, be plagued with such a critical issue? The answer lies in the architectural and infrastructural nuances of large buildings. Banks provide an ideal breeding ground for mould with their vast, closed spaces, central air conditioning, and limited ventilation. Moreover, unexpected factors, like minor leaks, poor insulation, or even everyday activities like using humidifiers, can introduce and trap moisture, creating a conducive environment for mould growth.

Strategies and Solutions: Eradicating the Threat

Protecting the health of employees and clients and ensuring a safe banking environment necessitated a rigorous mould remediation strategy. Here’s a deeper look into our comprehensive approach:

  1. PPE Level Four: The extremity of mould contamination mandated the highest level of protective gear. The safety of the team was paramount. A full-face respirator and organic vapour and HEPA filters became mandatory. Other protective measures included disposable overalls, gloves, and shoe protectors.
  2. Scope of Work and Root Cause Analysis: Post assessment, a definitive scope of work was established, encompassing all affected areas. The root cause analysis was paramount to ensure permanent remediation. The culprits often ranged from internal moisture build-up due to condensation or HVAC settings to external factors like flooding or pipe leakage.
  3. Specialised Decontamination Process: We employed industry-leading products like Protox Encapsulate and Protox Hysan. Specifically designed for mould removal, these ensured the thorough eradication of mould spores and offered solutions for areas hard to treat traditionally.
  4. Ongoing Prevention: While treating the existing mould was critical, prevention of future outbreaks was equally, if not more, vital. ProtoxHP18, a hydrogen peroxide-based disinfectant, was a game-changer. Its broad-spectrum effectiveness and its biodegradable nature ensured that treated areas remained mould-free.

Focused Areas of Remediation

The restoration process spanned multiple areas within the bank:

  • Ceiling Cavity: Employed HEPA air filtration, ULV fogging, and hydroxyl units.
  • Kitchen Area: This saw containment barriers, decontamination, and antimicrobial treatments.
  • Exit/Hallway/Staircase: Included carpet removal, false ceiling material removal, and ULV fogging.
  • File Rooms: Emphasised relocating files and private information, ensuring these critical documents remained uncontaminated.


Strategies and Solutions: Eradicating the Threat

To restore the sanctity of the Orange Credit Union, a rigorous mould remediation strategy was vital.


Containment Creation: Crucial to prevent cross-contamination between affected and unaffected regions.

Air Filtration: Installation of an air filter throughout the works, ensuring negative pressure across multiple sections of the property.

Contents Relocation: Moving items, primarily restorable, to unaffected areas.

Material Removal: This included water-damaged ceiling materials and ceiling cavity insulation.

Moisture Detection: Comprehensive moisture detection in all structural materials followed by aggressive agitation, particularly for ceiling trusses.

Cleaning: The scope covered Gyprock walls, skirting boards, and other horizontal and vertical surfaces using Microcide. All floors underwent an antimicrobial chemical treatment.

Debris Management: Removal and disposal of debris, particularly structural material and porous content items.

ULV Fogging: A critical step covering affected areas, including the air conditioning unit. During this process, the building remains unoccupied.

Drying Equipment: Essential to remove residual moisture from affected structural materials.


Efficient execution requires a team of 2 technicians, with equipment slated for a 5-day duration on site.


The drying process would deploy a dehumidifier, 4 air movers, a boost bar, and a dehumidifier drum. For air filtration, 3 air scrubbers (preferably negative) and 3 hydroxyl units are requisitioned.

Concluding Thoughts

Mould infestation in significant institutions like banks is a multifaceted concern. It’s not just an infrastructural issue; it directly impacts the health of employees and clients, potentially leading to lawsuits and reputational damage. However, with advanced technology, a comprehensive methodology, and dedication, it’s a challenge that can be overcome. The bank can again be a beacon of trust, security, and safety through rigorous restoration efforts.

Mould Spore Count (Air)

Here are some services we provide:

McArdles Cleaning & Restoration Technicians are the “face” of our business and more than likely the people you will have the most contact with. All of our technicians are highly trained – not only in the professional services they provide, but also in customer service. We see staff technical training as being a very important aspect of our service and hold frequent training sessions where all of our staff have the opportunity to develop and extend their knowledge.