How to Prevent Mould and Flaking Paint: A Step-by-Step Guide

As Cape Town grapples with relentless rains and a mould crisis, homeowners are confronted with the challenging task of addressing damp and damaged walls. Flaking paint and mould are common symptoms of wet conditions—especially prevalent during Cape winters—when dampness creates the perfect environment for mould to thrive. However, by taking proactive steps, consumers can protect their walls from damage and minimize the need for costly repairs in the future.

“The key to a successful paint job lies in thorough preparation. As a homeowner, it’s essential to remember that ‘a smooth finish starts with a smooth start,’“ says Megan Gounden, Vice President of Merchandise at Builders.

Key Steps to Prevent Mould and Flaking Paint

By following these essential preparation steps, you’ll set the stage for a paint job that stands the test of time and helps prevent mould and flaking paint:

1. Remove Loose Paint Flakes and Old Hardware:

• Begin by removing any loose paint flakes, as well as old nails and screws.
• Fill the resulting holes with a suitable crack-filler.
• Use a putty knife to smooth the surface.
• Once the filler is dry, sand the area until it’s even.

2. Sand Uneven Surfaces:

• Sand the wall surfaces to create a smooth and even finish.
• Start with coarse grit sandpaper and gradually move to finer grit.
• After sanding, wipe away the dust with a damp cloth to ensure a clean surface.

3. Apply a Damp Sealer:

• Before applying an undercoat, it’s essential to use a damp sealer on areas that are prone to moisture.
• This step helps to lock in any dampness and prevents it from affecting the final paint job.
• Follow the manufacturer’s instructions for the best results.

4. Apply a High-Quality Primer:

• Use a high-quality primer that’s suitable for your wall type and the specific conditions of your space (moisture, mould, etc.).
• This will create a strong bond between the wall and the paint, ensuring a durable and long-lasting finish.

5. Fill Holes and Cracks to Prevent Moisture Seepage:

• Identify and fill any cracks and holes.
• Hairline cracks and gaps around windows and doors should be sealed with an acrylic sealer to prevent moisture seepage.
• After the filler has dried, sand the area smooth for a seamless finish.

Protect Your Home from Mould and Flaking Paint

By taking these proactive measures, homeowners can create a watertight barrier that protects paint from mould and flaking, ensuring a safe and durable living space.

Everything you need for a successful home painting project, including the complete Fired Earth range, is available at Builders, both in-store and online at builders.co.za.