The Problem
A basement flat in an 18th-century semi-detached property in Folkestone, Kent, was suffering from extensive mould growth beneath its timber floorboards. The damage was identified during an inspection and was traced to underlying damp issues.
Key Issues Identified:
Structural Damage:
- Severely damaged timber floorboards, joists, and base plates.
- High moisture content in the timber, leading to compromised structural integrity.
External Factors:
- Obstructed air bricks preventing adequate ventilation of the subfloor void.
- Signs of a breached damp-proof course (DPC) and inadequate drainage.
- A leaking gutter contributing to persistent moisture on external walls.
Internal Conditions:
- The basement flat sits below road level, making it prone to damp and poor air circulation.
According to the UK Centre for Moisture in Buildings, up to 40% of UK homes experience mould problems, with inadequate ventilation and moisture control being the leading causes. In period properties, these issues are exacerbated by older construction techniques.
The Solution
Our team implemented a comprehensive plan to remove the mould, address the causes of damp, and restore the affected areas to a safe and habitable condition.
Step 1: Investigation and Preparation
- Conducted a detailed moisture survey, identifying the external wall’s left-hand side as the primary moisture source.
- Pinpointed contributing factors such as obstructed air bricks, a compromised DPC, and a leaking gutter.
- Removed all contents from the lounge to create a clear working space and minimise contamination risks.
Step 2: Containment Measures
- Installed a negative pressure system to prevent the spread of fungal spores to unaffected areas.
- Sealed the lounge doors with polyethylene sheeting to maintain containment.
Step 3: Remediation and Cleaning
Mechanical Removal of Fungal Growth:
- Carefully removed all affected timber, double-bagging the materials to prevent cross-contamination.
- Used H-rated HEPA vacuum systems to clean residual fungal spores.
Surface Treatment:
- Washed remaining timber with specialist mould removal products.
- ULV (Ultra Low Volume) fogging of the entire area using Decon 7, an environmentally friendly solution that eliminates 99.999% of mould, bacteria, and other biohazards.
Step 4: Recommendations for Preventing Recurrence
- Repair the leaking gutter and ensure proper drainage.
- Clean and maintain air bricks, lowering the front patio ground level to prevent flooding.
- Inspect the damp-proof course for further treatment if required.
The Result
Our comprehensive mould remediation process ensured the affected areas were restored to safe and habitable conditions.
Key Outcomes:
- Eliminated Fungal Growth: Removed all mould-affected materials and thoroughly decontaminated the space.
- Restored Structural Integrity: Prevented further damage to the timber structure by addressing the root causes of damp.
- Improved Ventilation and Moisture Control: Recommendations for air brick maintenance and ground level adjustments ensure proper ventilation and reduced flooding risk.
- Health Benefits: Eradicated mould spores that posed potential health risks, particularly respiratory issues.
Client Benefits:
- A mould-free environment restored to high standards of safety and comfort.
- Long-term protection against recurrence through targeted structural improvements.
Did You Know?
Prompt mould remediation not only protects your property but can also reduce associated health risks by up to 50%, according to the World Health Organisation. Early intervention can save thousands in repair costs and help prevent long-term structural damage.
If you’re facing mould issues, whether in a period property or a modern home, contact us for expert mould remediation services and let us restore your home to its best condition!
