angles beams blue-collar-workers brick-work Bricklayer builders building carpenters clothing concrete construction construction-work construction-workers dangerous dangers fabric footwear foreman form-work garment height high longyi lumber multi-storey multi-story roofer roofing safety scaffolding standards structure timber tools tradesmen unprotected wood wood-work wooden work workman appearance architectural background barred bars cottage damage damaged decay deteriorated deterioration dilapidated doorway early exterior external farming historic history old open openings padlocked pioneers protected Remains Renovated renovations reroofed rocks roof secure secured security Settlers stone stones stonework sunlight sunshine texture textures wall walls window-frames interior capping cleaning cover covered covering danger ear protection edge high-pressure improvement maintenance pressure pressure-cleaning renovating renovation repairs restoration restoring risks risky roof-area rooftop skies sky spray tiles tiling tough water wet