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Hurricanes, being in coastal florida. it's -- it's hard to imagine at the moment given what we know just what may have contributed to this collapse. i know there have been a lot of reports out there and news coverage. but we really just don't have the evidence. and because there hasn't been an investigation yet. >> yeah. >> so that's -- we need to wait and make sure that's tended to carefully. >> that's critical. and under way. we have learned about this 2018 report where an engineer warned of major structural damage to the kondso and said, quote, failure to replace the waterproofing in the ne...

>> look, this building is not old. this building is young. i was in high school when this building was being built. what's interesting here is when we design buildings we design everything slope to drains. so the water runs out. especially here. the aware has salt in it, salinity. we try to get the water away and drained away from the structure, from the steel as fast as possible. but like the engineer said. if this really was a waterproofing issue where the water continuously was able to percolate into the concrete and into the steel, then it's like a cancer. it grows and keeps on growing and...

About that. because as you said, this focus on the pool area, the base. and if you read that report, it makes it very clear that that's one of the biggest issues. it says that the waterproofing around that pool is beyond its useful life. and so when you read that there is major structural damage, that there are patched repairs de deteriorating exposed rebar it raises questions about who knew about it and when and we were trying to ask those questions through the weekend, john. to try to get answers because it's important to know for accountability purposes. now, as for what is going on right n...

>> reporter: also buried underneath the rubble, clues as to what may have caused the collapse. what investigators may focus on is whether the structural supports beneath the complex gave way. an engineer's report from an engineer's report from 2018 showed the champlain tower south condo building had abundant cracking in columns beams and walls in the parking garage and major structural damage to a concrete slab caused by failed waterproofing that if not repaired in a timely fashion would cause the concrete to deteriorate, but did not indicate if any of these issues could lead to a collapse. jo...

Pool area, in the garage. and some major structural damage, especially when you're talking about the waterproofing. one of the main issues was that the waterproofing was beyond its u useful life. and i want to read you this report. it's going to give you an idea of what we're talking about here. quote, the waterproofing below the deck, entrance drive, as well as all of the waterproofing is beyond its useful life and therefore must be completely removed and replaced. the failed waterproofing is causing major structural damage to the concrete structural slab below these areas. here is the key. f...