Page 9 - Waterproofing News Today

Things. waterproofing only has a useful life and after a period of time, you have to replace it. the north building, i think, last year or the year before, replaced all the waterproofing. the issue is when water gets into a crack, all concrete cracks, its made to crack. water gets into a crack. in the north, you worry about it freezing and thawing, because when water freezes, it expands and that makes the crack bigger. then you can get rust in the reinforcement steel. when rust gets in the reinf...

Water in that area. >> you know, i read the report. and the water is very, very concerning. and in the report, there is actually a sentence that states that, maybe, this event is actually in other locations in the building. so for example, if the waterproofing has failed where the pool deck is. has the waterproofing, also, failed where the roof is? what happens then is the connections, over time, fail. and this event did not happen, in the past-24 hours or the past-24 months. it -- it took time ...

Found odd and concerning. he asked the employee what it was about at the time and the employee said it was probably a waterproofing issue that was going to be fixed. then he was led over to the south side underneath the pool area still in the garage to where the pool equipment room was and inside that room he saw major concrete spaling, exposed rebar in one of the beams there. he found it alarming enough he snapped photos and sent them to his boss at the time to say, you know, this project might...

Of those towers. >> reporter: but while engineers continue to speculate from afar, but reality the answer likes, like the victims, trapped under rubble. an alarming 2018 inspection report warned of abundant cracking in concrete columns and several instances of deteriorating rebar, especially on the condos pool deck and in the parking structure garage underneath the building. according to the report, failed waterproofing was causing major structural damage to the concrete structural slabs below t...

Unusual amount of standing water in that area? >> you know, i read the report and the water is very, very concerning, and in the report is a sentence that states that maybe this event is actually in other locations in the building. for example, if the waterproofing has failed where the pool deck is, has the waterproofing also failed where the roof? what happens then is, were there connections over time that failed? in this event it did not happen in the past 24 hours or the past 24 months. it to...

Behind the scenes, and part of that report, if you read the report, theres actually a sentence in there where he is stating that if this waterproofing and this damage occurred here by the pool area, where else in the building could it have occurred, meaning i dont know if they had an opportunity to see the whole building, and i dont know if they went on the roof, but there are other waterproofing membranes that protect not only the garage and pool deck, because the pool is still standing, you ca...

This property which found major structural damage and abundant cracking and spalling of the concrete. this is a term some people refer to as concrete cancer. it happens a lot in human environments and salty environments. and theres a lot of concern about it. beyond that, there was concern about water seals on the building. the failed waterproofing is causing major structural damage to the concrete structural slab below these areas. failure to replace the waterproofing in the near future will cau...

>> look, this building is not old. this building is young. i was in high school when this building was being built. whats interesting here is when we -- when we design buildings, we design everything slope to drains so the water runs up. especially, here. where the water has salt in it. has 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, continu...

Walkthrough of -- of the property. initially, walked through the lobby, walked through the pool area. didnt notice anything particularly alarming. he was being escorted by a building employee, who then walked him downstairs to the north part of the building. and in the garage, below. and thats where he -- he told us that he saw deep-standing water in the parking garage that he -- he found odd and concerning. he asked the employee what it was about, at the time. the -- the employee said it was pr...

Significant cracks and breaks in the buildings concrete. more from cnns tom foreman. tom? >> reporter: hey, don. all eyes are focused on this 2018 inspection and report about this property, which found major structural damage and abundant cracking and spauling of the concrete. this is a term that some people refer to as concrete cancer. it happens a lot in human environments and salty environments and theres a lot of concern about it. beyond that, there is concern about water seals on the buildi...