Steamatic Bendigo Successfully Remediated Mould from Roof Joists
Steamatic Australia encountered a significant challenge in a newly constructed domestic property where extensive mould growth was discovered on the roof joists within the ceiling space. Initial inspections suggested a potential stack effect, but further investigation revealed that high humidity levels from the shower extraction fans were the primary cause, leading to significant damage.
The Challenges:
The main challenges included identifying the source of the mould growth and addressing the high humidity levels generated by the shower extraction fans. The mould was concentrated on timber joists beneath the roof, where condensation occurred due to increased relative humidity, potentially compromising the structural integrity of the building.
The Solution:
To mitigate the mould growth and address the underlying issue, Steamatic Bendigo implemented a comprehensive solution:
- Investigation and Testing: An indoor environmental professional conducted thorough testing to confirm the source of high humidity and mould growth.
- Remediation Plan: Following testing, a remediation plan was developed in accordance with IICRC S520 guidelines. This involved:
- Roof Access: Accessing the affected area through the roof to prevent cross-contamination with the living spaces.
- Cleaning and Treatment: HEPA vacuuming, wire brushing, sanding, and antimicrobial treatment of the affected timber joists to remove mould and prevent future growth.
- Environmental Controls: Covering all penetrations and fans in the ceiling to isolate the remediation area.
- Structural Cleaning: Removing and washing roof sheets, removing insulation and foil insulation, and thoroughly cleaning the entire ceiling space.
- Execution: A scaffold was erected to safely access the perimeter of the property. Roof sheets were removed, and meticulous cleaning and treatment procedures were followed to ensure thorough remediation of the affected areas.
The Outcome:
The remediation plan was successful. It addressed the mould infestation and mitigated the factors contributing to high humidity in the ceiling space. Post-assessments confirmed that the relative humidity levels were reduced to acceptable levels, ensuring a healthier indoor environment and preventing further structural damage.
Steamatic Bendigo’s proactive approach, involving thorough investigation, adherence to industry guidelines, and meticulous execution of remediation efforts, effectively resolved the mould issue and safeguarded the property against future incidents.
