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Protect Your Home: 3 Best Methods for Roof Mould Removal

by Uneeb Khan
3 Best Methods for Roof Mould Removal

Mould on your roof can be a serious problem if left unchecked. Not only is it unsightly, but mould can also cause damage to your roofing materials and lead to health issues for you and your family from mould spores entering your home. The key is to tackle roof mould quickly and effectively to prevent further issues. Here, we will look at the three best ways to remove mould from your roof.

3 Best Ways to Remove Mould From Your Roof

Mould loves warm, humid environments, which makes the dark, enclosed space under your roof an ideal place for it to grow. While small amounts of mould won’t likely cause problems, unchecked mould can spread quickly. It’s essential to act fast to remove mould from your roof using safe and effective methods.

1. Mix a Mould-killing solution

An easy DIY method for killing and removing roof mould is to mix up bleach or vinegar with water. Wear protective clothing, gloves, and goggles to keep the solution off your skin and out of your eyes.

Mix a 50/50 solution of bleach and water in a bucket and use a scrub brush attached to a long handle to scrub the mouldy areas. Let the solution sit for 10-15 minutes before rinsing thoroughly with your garden hose. The bleach will kill the mould and prevent it from quickly growing back.

Alternatively, you can use undiluted white vinegar, which helps break down the mould and neutralize the spores. Scrub vigorously with a stiff brush and then rinse off thoroughly with water. Vinegar is a bit gentler than bleach if you have roofing materials that bleach may damage.

2. Use a mould-killing roof cleaner

Several effective commercial mold-killing products are available for a convenient pre-mixed solution. Look for a roof cleaner containing sodium hypochlorite (bleach) or hydrogen peroxide as the active ingredients to kill mould.

Wet down the affected roof area with your hose first to prevent the cleaner from drying out too quickly. Then, apply the cleaner as directed on the packaging, using either a sprayer or scrub brush. Let it sit for 10-15 minutes before thoroughly rinsing off with water. This will kill the current mould and help prevent it from returning quickly.

3. Remove and replace damaged roofing

For stubborn or recurring mould problems or areas where the roofing material is damaged, it may be necessary to remove and replace portions of your roof entirely. Use a flat shovel or pry bar to remove any loose, damaged, or heavily mouldy sections of roof tiles, shingles, flashing, or other material.

Wear protective gear to avoid direct contact with the mould. Properly dispose of the removed sections. Scrub surrounding areas with either bleach or hydrogen peroxide cleaner before re-roofing the damaged sections. Replace with matching new material to prevent future moisture issues.

Tips for Preventing Roof Mould After Removal

Once you’ve tackled the mould removal process, take steps to help prevent future outbreaks:

  • Improve ventilation to allow airflow under your roof. This prevents the humid, stagnant conditions mould loves.
  • Trim back overhanging tree branches. This reduces shade, moisture from leaves, and debris that collects on your roof.
  • Clean out your gutters and downsprouts. Clogged gutters can lead to roof leaks and moisture issues.
  • Repair any roof leaks promptly. Don’t allow water to penetrate and pool on your roof.
  • Apply biodegradable moss killer to your roof. This will help control moss and mould growth.
  • Consider coating your roof with an EPA-registered mould resistant coating. This adds further protection.
  • Inspect your roof regularly and re-apply mould remover when you see dark patches. Early treatment prevents more significant problems.

By quickly removing mould when it first appears and taking preventative steps afterwards, you can help keep your roof mould-free and protect your home. Always wear protective gear when working with anti-mold chemicals, and rinse surfaces thoroughly afterward. With proper maintenance and care, your roof can look great for years before needing repairs or replacement.

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