Two months after applying a biocide treatment to this heavily contaminated Earlwood roof, we returned to inspect the progress — and the rehabilitation process is now clearly underway.

One of the most noticeable differences during this inspection was the condition of the lichen itself. Growth that had previously been hard, active and firmly attached to the roof surface was now visibly deteriorating, with sections easily rubbing away by hand.

This follow-up inspection provides a strong real-world example of how biocide treatment works over time. Rather than acting as an instant cosmetic clean, the treatment progressively breaks down biological growth at the root level, allowing the roof to rehabilitate naturally over the coming months.

The video also demonstrates why patience is important when treating established lichen contamination, particularly on older tiled roofs in leafy suburban environments where moisture and shade contribute to ongoing biological growth.

Watch the video to see the close-up condition changes now occurring across the roof surface and how significantly the lichen has already deteriorated in just two months.

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📞 Call or message 0403 555 570 today to discuss the right approach for your roof and solar panels

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