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by bluGill
535 days ago
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Generally home eaevators are made of things that don't need inspections. Screws will last for decades without issues and when they fail rescue workers can get you out. Those systems are too slow and expensive for use commercial buildings but good enough for a short house. Thus commercial buildings will use a cable which is cheaper and faster but they stretch and break over time so you must do safety inspection. (a house sized screw is under a grand so not really a big factor in price, but that much cable will get several floors. some commercial builings use hydraulic elevators which when they break just slowly lower you to the bottom floor . Again much less inspections needed because they are desirned safe. but the slow speed and cost mean only a few floors are possible |
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