There is no one-size-fits-all answer for when you should clean your roof in the UK, but most agree that moss and algae growth are directly related to not only location (i.e. region around the country), as there tends to be more of it towards seaside areas or rural settings with lots of wildlife but also due largely to environmental factors – including airflow whether through trees etc., humidity levels and the type of materials used in the building structure itself. Asphalt shingles and wood siding will lead to higher incidences of infestation especially with large plants like vines climbing up walls unchecked over years.
If your home is in a moist, shady spot (such as under trees or on north-facing roof slopes), in a high-rain area of the country: every 2 to 3 years. Up on a sunnier, more exposed roof with less tree coverage, it might be every 5 to 7 years – so long as the roof looks fine.
You should use an efficient way of determining when is the right time to use Roof Cleaning Gloucester. Simply wait for early signs like:
Tile edges with moss creeping up
Green staining or algae patches
Gutters filling up more frequently or are overflowing
Valley/chimney debris.
Ideally, coordinate your roof cleaning to match other maintenance. These services are quite popular to book either beyond the autumn leaf fall (to avoid gutter blockages) or until spring (refreshing of the exterior, winter damage). For Roof Cleaning Gloucester, visit Stag Softwash.
Tip: do not use high pressure washing on most tile roofs, as it will wash away the protective surface and can work tiles loose or actually introduce water under the pitch! Try to enquire what the safer options might be, such as soft washing or steam cleaning and whether they include biocide treatment that hinders regrowth.