“Hi, my name is Greg Batista here to answer another question from the internet.

LeakyLarry asks: Why do engineers say water intrusion is the biggest problem?

Because water destroys buildings from the inside out. It rusts rebar, weakens concrete, rots wood, and breeds mold. The EPA estimates 80% of building problems are moisture-related. In Florida, heavy rains, high humidity, and salt air make it worse. Water intrusion is also the top cause of lawsuits between condo boards and contractors, since even small leaks cause major repair costs. Prevention through sealants, waterproofing membranes, and proper drainage is always cheaper than waiting until structural repairs are needed. In fact, studies show every $1 spent on prevention saves $4 in repair costs later. That’s why engineers call water intrusion the number one building killer.

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Authoritative references: U.S. Environmental Protection Agency – Moisture Control Guidance; International Concrete Repair Institute (ICRI).

The author, Greg Batista, PE, CGC, SI is owner of G. Batista Engineering & Construction and is a nationally-recognized engineer and contractor with more than 35 years of experience and offices in Fort Lauderdale, Florida.

“Hi, my name is Greg Batista here to answer another question from the internet.

SkyViewSam asks: Why are engineers flying drones around condos and bridges?

Drones let us safely inspect areas that are hard or dangerous to reach. With high-resolution cameras, engineers can zoom in on cracks, rust, or leaks without costly scaffolding or lifts. According to the FAA, drone use in construction has grown 239% since 2018, making it one of the fastest-growing tools in the industry. In South Florida, drones are used for 40-year recertifications, roof inspections, and reserve studies. They don’t replace in-person engineering, but they save money, time, and most importantly, keep inspectors safe. Technology has now become part of building safety.

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Authoritative references: Federal Aviation Administration – UAS integration reports; ASCE technology adoption studies.

The author, Greg Batista, PE, CGC, SI is owner of G. Batista Engineering & Construction and is a nationally-recognized engineer and contractor with more than 35 years of experience and offices in Fort Lauderdale, Florida.

“Hi, my name is Greg Batista here to answer another question from the internet.

Bubblwatson asks: How can tall towers sway several feet in the wind and not crack?

High-rises are designed to move — and that flexibility keeps them standing. In South Florida, codes require towers to resist hurricane winds of up to 175 mph. Instead of making a building perfectly rigid, engineers design it to bend and sway. A 50-story tower might move a foot or two at the top during strong gusts. To control this, some towers use tuned mass dampers — giant counterweights — or specially shaped façades to reduce wind pressure. If skyscrapers didn’t sway, they’d crack under stress. This controlled motion is also designed to be slow enough that residents rarely feel it. For example, engineers generally limit acceleration so people don’t experience motion sickness. The next time you’re in a Miami high-rise during a storm and feel a gentle movement, that’s not failure — that’s engineering saving the building.

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Authoritative references: American Society of Civil Engineers (ASCE 7 – Minimum Design Loads for Buildings); FEMA Hurricane Design Guidelines.

The author, Greg Batista, PE, CGC, SI is the owner of G. Batista Engineering & Construction and is a nationally-recognized engineer and contractor with more than 35 years of experience and offices in Fort Lauderdale, Florida.

“Hi, my name is Greg Batista here to answer another question from the internet.

Spartacus4949 asks: What’s the problem with old cast iron pipes in condos?

Cast iron was the go-to material in Florida buildings before the 1970s. But in our hot, salty, humid climate, cast iron corrodes much faster than in other regions. Inside, pipes rust, forming scale that narrows the opening. That causes backups, leaks, and eventually complete collapse. The National Association of Home Builders found the typical life expectancy of cast iron is 50–75 years in normal conditions, but here in South Florida, many pipes fail in just 25–30 years. A 2016 Florida survey estimated 2.4 million homes built before 1975 are at risk of cast iron pipe failure. Beyond flooding and mold, insurance companies often deny claims if damage is due to “wear and tear,” leaving condo associations with multi-million-dollar replacement bills. That’s why many older condos are replacing entire plumbing stacks with PVC or HDPE before disaster strikes.

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Authoritative references: National Association of Home Builders – Life Expectancy of Home Components; Consumer Reports investigations into cast iron failures; Florida Class Action Settlement (2016).

The author, Greg Batista, PE, CGC, SI is owner of G. Batista Engineering & Construction and is a nationally-recognized engineer and contractor with more than 35 years of experience and offices in Fort Lauderdale, Florida.

“Hi, my name is Greg Batista here to answer another question from the internet.

jujukillswithch asks: Why do some Florida condos have giant backup generators?

It comes down to life safety. Florida law requires many mid- and high-rise condos to have backup power for elevators, emergency lighting, and fire alarm systems. After Hurricane Wilma in 2005, codes were strengthened because too many residents were left trapped without power or safe exits. Miami-Dade regulations mandate that condos over 75 feet tall provide this emergency backup.

A FEMA report highlights that loss of power is the #1 cause of secondary emergencies in high-rises during disasters. Generators don’t keep the TVs or air conditioners running — they ensure people can evacuate safely and emergency responders can access the building. It’s a code requirement designed to save lives when the grid goes down.

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Authoritative references: Florida Building Code Section 1006; Miami-Dade County Emergency Power for High-Rise Residential Buildings; FEMA Disaster Mitigation Reports.

The author, Greg Batista, PE, CGC, SI is owner of G. Batista Engineering & Construction and is a nationally-recognized engineer and contractor with more than 35 years of experience and offices in Fort Lauderdale, Florida.