Building Inspections Video Archives

Why Do Propane and Natural Gas Smell So Strong? (Video)

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

GasGuy123 asks: Why does propane or natural gas have that rotten egg smell?

The smell is added on purpose. Natural gas and propane are odorless by themselves, which makes leaks dangerous. To fix that, suppliers add a chemical called mercaptan, which smells like rotten eggs. The odor is strong enough that people can detect it at concentrations as low as one part per billion. This safety measure has prevented countless accidents by giving people an early warning of leaks. In Florida, gas utilities are required by law to odorize fuel before distribution. That stink may be unpleasant, but it’s one of the most important safety features in your home.

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Authoritative references: U.S. Department of Transportation – Pipeline and Hazardous Materials Safety Administration (PHMSA); American Gas Association safety publications.

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.

Why is Florida’s Water Table a Problem for Builders? (Video)

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

WaterloggedWally asks: Why do contractors complain about Florida’s water table?

Because it complicates almost every excavation. Pools, basements, or foundations often hit groundwater after only a few feet of digging. Contractors must constantly pump water out to keep sites dry. The U.S. Geological Survey notes Florida has one of the highest average water tables in the continental U.S., especially in coastal counties. That means higher construction costs and fewer below-grade structures. It’s also why many Florida homes are built on slabs instead of basements — the environment simply won’t allow deep foundations without expensive solutions.

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Authoritative references: U.S. Geological Survey groundwater studies; Florida Building Code excavation requirements.

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.

Why Does Miami Dade Have The Strictest Codes? (Video)

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

StormSafe77 asks: Why are Miami-Dade and Broward codes stricter than the rest of Florida?

It all goes back to Hurricane Andrew in 1992. That Category 5 storm destroyed 63,000 homes and damaged another 124,000 in just a few hours. Investigations showed weak connections, poor inspections, and outdated codes contributed to the devastation. As a result, Miami-Dade and Broward adopted the High Velocity Hurricane Zone, or HVHZ, within the Florida Building Code. This requires impact-rated windows, stronger roof-to-wall connections, and stricter inspections than anywhere else in the U.S. Miami-Dade’s Product Control Approval is so respected that many states and even other countries recognize it as the gold standard. Stricter codes may raise costs upfront, but they’ve saved billions in avoided storm damage and countless lives.

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Authoritative references: FEMA – Hurricane Andrew Assessment; Florida Building Code HVHZ; Miami-Dade Product Control Division.

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.

Do Fire Sprinklers Really Work Like in the Movies? (Video)

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

MovieBuff asks: Do sprinklers all go off at once like in Hollywood films?

Not at all. In reality, each sprinkler head activates individually when heat around it reaches about 155–165°F. That means only the heads closest to the fire discharge water. NFPA data shows sprinklers control or extinguish 96% of fires when activated, usually with just one or two heads. The Hollywood version — where every sprinkler goes off at once — is pure fiction. In condos and offices, that targeted design prevents unnecessary water damage while still saving lives.

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Authoritative references: National Fire Protection Association (NFPA 13); U.S. Fire Administration sprinkler effectiveness data.

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.

Where Are Wind Pressures Strongest on a Roof? (Video)

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

StormWatcher asks: On a roof, where is the wind pressure the strongest during hurricanes?

The corners and edges take the worst beating. Wind creates suction, called uplift, and the effect is magnified at corners where air rushes around edges. ASCE 7, the design standard, shows that pressures at roof corners can be up to three times greater than at the center. That’s why you’ll see extra fasteners and straps at corners and perimeters during construction in Florida. Failure at the edges often causes catastrophic roof loss. Strong roofs aren’t just about the middle — they’re about the weakest points where wind attacks first.

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Authoritative references: ASCE 7 – Minimum Design Loads for Buildings; FEMA wind damage assessments.

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.

Why Codes Toughen the Farther South in Florida? (Video)

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

SoFloBuilder asks: Why are building requirements tougher the further south you go in Florida?

Because hurricane risk increases closer to the coast and especially in South Florida. The Florida Building Code divides the state into wind zones, with the High Velocity Hurricane Zone (HVHZ) covering Miami-Dade and Broward. Buildings there must withstand up to 175 mph winds, compared to 140–150 mph in Central Florida. That’s why standards for windows, roofing, and structural connections are stricter the lower you go on the peninsula. Simply put, the closer you are to the tropics, the more nature tests your building.

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Authoritative references: Florida Building Code wind maps (ASCE 7); FEMA Hurricane Design Zones.

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.

Difference Between a Threshold and a Special Inspection? (Video)

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

BuildItBob asks: What’s the difference between a threshold inspector and a special inspector in Florida?

Ill keep it simple.

A Threshold Inspector is required by Florida law for large or complex structures — typically buildings over three stories or 50 feet high, or with an assembly occupancy of 500 or more people. Their role is to ensure critical structural components like foundations, columns, slabs, and connections are built exactly as the engineer’s plans and the Florida Building Code require. Threshold Inspectors are licensed engineers or architects registered with the Building Official.

A Special Inspector, on the other hand, is assigned to specific materials, systems, or construction methods that need extra oversight. Examples include structural steel welding, masonry, precast concrete, or post-tension systems on smaller buildings than threshold buidlings. Special inspections may be mandated by the Florida Building Code or the project’s Engineer of Record.

Both roles add safety, but threshold inspection is broad and building-wide, while special inspection is narrow and technical.

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Authoritative references: Florida Statute 553.79; Florida Building Code Section 110.8; Florida Board of Professional Engineers guidance.

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.

Why Do Some Counties Require 30-Year Inspections? (Video)

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

EarlyBirdEd asks: Why do some Florida counties require inspections at 30 years instead of 40?

This change came after the Surfside collapse in 2021, which tragically killed 98 people. Lawmakers realized coastal buildings face harsher conditions, so waiting 40 years for the first major inspection was too risky. Miami-Dade and Broward now require inspections at 30 years if the building is within three miles of the coast. Salt air, humidity, and storms age buildings faster, and earlier inspections catch problems before they become catastrophic. It’s one of several reforms Florida passed to make condos safer and prevent another Surfside.

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Authoritative references: Miami-Dade County Ordinance 22-63; Broward County Building Safety Program; NIST Surfside investigation.

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.

Why Must Engineers Sign and Seal Reports? (Video)

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

LegalLou asks: Why do engineers always sign and seal their reports?

The engineer’s seal is more than a stamp — it’s a legal declaration. In Florida, when a professional engineer signs and seals a report, they are certifying that the work was done under their supervision and meets state standards. It also makes them legally accountable for errors. Without a seal, a report has no standing with building departments. The Florida Board of Professional Engineers warns that misuse of the seal can result in fines up to $5,000 per violation and disciplinary action. So when you see an engineer’s seal, it’s not decoration — it’s their professional reputation and legal liability on the line.

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Authoritative references: Florida Statute Chapter 471; Florida Administrative Code Rule 61G15.

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.

Why Are Condos Built On Pilings (Video)

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

BeachBuilder asks: Why are so many Florida condos built on pilings?

It’s all about soil strength. Florida has sandy, porous soils that can’t carry the massive weight of high-rises near the surface. Engineers drive pilings deep into stronger soil layers or even into bedrock. Each piling can carry an enormous load — the Federal Highway Administration notes some designs support up to 1,000 tons per pile. Pilings also provide stability against storm surge and erosion, which is vital along Florida’s coasts. That’s why entire forests of pilings are driven before a single floor is poured. Though hidden, they form the foundation that ensures these massive towers remain standing through hurricanes, tides, and decades of wear.

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Authoritative references: FHWA – Pile Foundation Manual; Florida Building Code foundation requirements.

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.