How to Get Rid of Mould Under Floorboards: A Step-by-Step Guide
Mould under floorboards can be a frustrating and potentially harmful issue for homeowners. It’s caused by moisture buildup, poor ventilation, and lack of maintenance, which can lead to the growth of mould and mildew. If left untreated, mould can cause structural damage, health problems, and unpleasant odours. In this article, we’ll provide a comprehensive guide on how to get rid of mould under floorboards and prevent its return.
Causes of Mould Under Floorboards
Before we dive into the solution, it’s essential to understand the causes of mould under floorboards. Common causes include:
- Water damage or leaks
- Poor ventilation and airflow
- High humidity
- Condensation
- Poor insulation
- Lack of maintenance
Step-by-Step Guide to Remove Mould Under Floorboards
Removing mould under floorboards requires patience, attention to detail, and the right equipment. Follow these steps to effectively eliminate mould and prevent its return:
Step 1: Identify and Fix the Source of Moisture
- Locate the source of moisture, such as a leaky pipe, condensation, or poor ventilation.
- Fix the issue by repairing the leak, improving ventilation, or using a dehumidifier.
Step 2: Contain the Mould
- Cover the surrounding area with plastic sheets or tarps to prevent mould spores from spreading.
- Use masking tape to seal any gaps or openings.
Step 3: Clean and Disinfect
- Use a HEPA-filter vacuum cleaner to remove any loose debris and mould spores.
- Mix a solution of 1 part bleach to 10 parts water and apply it to the affected area using a soft-bristled brush or cloth.
- Let the solution sit for 10-15 minutes before rinsing with clean water.
Step 4: Remove and Disinfect Floorboards
- Remove the floorboards, taking care not to damage them.
- Use a wire brush to scrub away any remaining mould or mildew.
- Rinse the floorboards with clean water and let them dry completely.
Step 5: Dry the Area
- Use fans and dehumidifiers to dry the area thoroughly.
- Monitor the humidity levels to ensure they remain below 50%.
Step 6: Prevent Future Growth
- Apply a mould-resistant coating to the floorboards and surrounding area.
- Ensure good ventilation and airflow in the area.
- Regularly inspect the area for signs of mould and address any issues promptly.
Additional Tips and Precautions
- Always wear protective gear, including gloves, masks, and eye protection, when working with mould.
- Avoid using abrasive cleaners or scrubbers, as they can damage the floorboards.
- Consider hiring a professional if you’re unsure about how to remove mould or if the infestation is severe.
Conclusion
Removing mould under floorboards requires a thorough and systematic approach. By identifying and fixing the source of moisture, containing the mould, cleaning and disinfecting, removing and disinfecting floorboards, drying the area, and preventing future growth, you can effectively eliminate mould and prevent its return. Remember to always prioritize your safety and take necessary precautions when working with mould.
Bad photo ik, and floor top is wet because I tried to wipe it. The mould came from the bottom due to a leak that we fixed a while ago, but I just discovered this under a carpet. I don’t know if it could be treated from the top because of the seal on top of the wood. Any way to fix this without pulling up the whole floor please?
I don’t think you need to pull up the old floor.
But touch it… If it’s weird and uneven, then it has probably rotten away.
You might me able to salvage it with a floor sander, but if that’s too deep you might need to replace those boards or the whole floor for more evenness