
Moss, lichen or algae
Organic growth is spreading across visible roof areas or collecting where the roof stays damp.
A roof treatment is a lower-disturbance option for suitable moss, lichen and algae growth, including on delicate roof materials such as terracotta where assessment supports treatment. The biocide does not create an instant fully rinsed result: it continues working over time while rain and weathering gradually release treated organic material.
These are some of the common signs that it may be time to assess the surface and recommend an appropriate approach.

Organic growth is spreading across visible roof areas or collecting where the roof stays damp.

Terracotta or another sensitive roof finish may be better suited to a gradual biocide treatment than a more immediate cleaning process.
The property is suitable for a treatment that continues working over time while weathering releases the dead organic material.
A considered process built around your home and its different exterior surfaces.
We identify the concrete roof tiles, terracotta tiles where suitable, selected coated roofing, condition, access points and sensitive areas. Where relevant, manufacturer care guidance is checked before the cleaning plan is confirmed.
We identify the roof material, growth, condition, drainage and tank connections before applying an appropriate biocide treatment. Application is controlled to the affected areas, with runoff and overspray managed. We explain how the result develops with weathering, the likely timeframe and whether follow-up assessment is appropriate.
We inspect the finished areas, tidy the work zone and walk through the result with you. Any questions or areas needing attention are addressed before the job is considered complete.
Genuine project photography from SS Exterior Services across Kilmore and the surrounding region.

Not usually. The biocide continues working after application, with rain and weather gradually releasing treated organic growth.
Softwashing is generally chosen for a more immediate cleaned result, while a roof treatment is designed to work progressively with less disturbance.
Tank isolation and runoff controls must be planned before application.
We explain any property-specific preparation during quoting. This may include clearing access, moving fragile items, closing windows or isolating water systems, depending on the service.
Yes. Compatible services can be included in one quotation when access, timing and surface conditions make a coordinated visit practical.