M3 Roofing Seasonal Roof Maintenance Checklist Spring: - Check slipped or cracked tiles. - Inspect flashing around chimneys and valleys. - Clear gutters and downpipes. Summer: - Inspect flat roof seams and ponding areas. - Trim back overhanging branches. - Review loft ventilation. Autumn: - Remove moss and leaf build-up. - Check ridge and verge mortar. - Book pre-winter survey. Winter: - Monitor for storm damage after high winds. - Watch for internal damp spots. - Use emergency hotline for active leaks.