angles appearance building capping cleaning cover covered covering danger dangers ear protection edge exterior external 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 access-denied advice alert appropriate-behavior appropriate-behaviour black boating boats care caution communicating communication dangerous directing direction helpful information informative informing not-allowed not-permitted prohibited prohibition restricted restriction restrictions risk rocks rocky shallow sign signs symbol symbols warning warning-sign waterside words yellow architectural architecture arm basket blue cherry-picker color colors colour colours elevated elevation equipment features Harness heights machinery orange paint painter painting perspectives raised raised-platform safety-colours safety-harness surface surfaces up-high wall walls white electricity hydraulics insulators lifting on-high power power-lines power-pole raising repair-crew replace replacement replacing service trucks vehicles workmen background bright colored colorful coloring coloured colourful colouring communicate contrast contrasting contrasts decoration emergency facetious fading flippant fuzzy message painted pink pink-painted-wall sarcasm symbolic wallpaper wording avoid concern damage demolition denied destruction directions hazard hazardous keep-out no-access no-entry permission-denied red requirements unwanted announcement be-careful beware crocodiles crocs no-swimming protect protection rules swimming unsafe consumption health Look looking lookout no-diving undrinkable unhealthy advising cars motorcars road-sign roadwork signage slow slow-down traffic workers