Roof cleaning across Windle
Slate and porous tile only ever get a hand scrape and a gentle treatment from us, never raw pressure, so the roof keeps its surface while the moss goes.
Windle sits on gently rising ground north of St Helens, open enough to catch the weather rolling in across the Mersey basin but broken up by hedgerows, mature gardens and the woodland around Carr Mill Dam to the east. Farmland holds moisture, tree cover holds shade, and between them they keep roofs, drives and render damp for days at a stretch through autumn and winter. That is why moss and green algae come back quickest on north-facing pitches and tree-shaded plots out here, and why we treat the growth properly rather than just rinsing it off.