Although for many, the roof would look better cleaned and scrubbed, with gleaming grey tiles, others will agree that the natural process of weathering and the arrival of lichens and mosses helps to provide the house with more in the way or character and age.
Relevant image keywords:
algae, architectural detail, architectural feature, architecture, architecture and buildings, blue, blue sky, building exterior, built structure, chimney, chimney stack, clay, clay tiles, detached house, exterior, gutter, guttering, home exterior, house, in a row, lichen, moss, no people, old, old-fashioned, orange, outdoors, overlapping, pantiles, pattern, real estate, residential building, residential structure, ridge, ridge tiles, roof, roof ridge, roof tile, roof tiles, roofing material, rooftop, rustic, sky, sunny, terracotta, terracotta tiles, tiled roof, tiles, weathered
