abstract appearance architectural architecture background basic brick brick-wall bricks color colored colors colour coloured colours crack cracked cracks exterior external rough smooth solid standard strength surface surfaces texture textured textures uneven variation varied various wall wallpaper fence gloss glossy gray grey black blended bright coloration colorful colourful contrast curved curves decorative distinctive light lighting multicolored multicoloured patterned patterns perspectives question-mark red rounded shaped shapes style surfacing thick thin vibrant white concrete Designs details distinct edged edges embedded heavy interconnected interlinked linear lined mosaic pebbles protective secure Sizes stones strong surfaced angles building capping cleaning cover covered covering danger dangers ear protection edge height high high-pressure improvement maintenance pressure pressure-cleaning renovating renovation repairs restoration restoring risks risky roof roof-area roofing rooftop safety skies sky spray sunlight sunshine tiles tiling tools tough water wet work workman