There are many ways to access the exterior of a building. You can use an extension ladder, high reach extension poles, or a boom lift (cherry picker), but these are only used for structures that are under four stories. When working with buildings taller than four stories you will have to use something that is more appropriate. As a building owner, you have several options; two common options are an Outrigger system and a Davit system. There are pros and cons for either system. A significant factor will be the city and/or state regulatory codes and standards because they will impact the decision. We compare the two systems here to explain their features and settle the long-running debate (we didn't just make it up for this article).
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high rise window cleaning
Living buildings are starting to become a regular part of most downtown skylines. A decade ago they were seen as oddities that would probably fade away along with the craze in ‘going green.' Fast forward to today, and we can see that hasn't happened as living building facades have only grown in popularity. Which leaves us with the question: How do you perform maintenance on the exterior of a living building?
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exterior building maintenance,
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high rise window cleaning
In this incident it appears the steel davit base or its permanent to the building structural system (steel or concrete) failed. This being a four wire platform (2 wire ropes on each side) allows for the workers to tie off to the "dog-line" on the suspended platform itself. The redundancy and safety factor built into the remaining davit support saved their lives.
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