In South Florida, hurricane season is not a single event you brace for in September. It is a six-month window, June through November, when every commercial building in Miami-Dade, Broward, and Palm Beach is exposed to wind-driven rain, storm surge, and the slow damage that follows. For a property manager or a condo board, the storm itself is only half the problem. The other half is what happens to the building in the days and weeks after, when water has found its way into the envelope and the clock on mold, concrete damage, and tenant complaints has already started.
This guide is for the people responsible for those buildings. It walks through the full storm lifecycle, prepare, respond, restore, and protect, and points to what a licensed contractor actually does at each stage. Deluxe Waterproofing and Caulking has worked on South Florida commercial buildings for more than 80 years as a Florida Certified General Contractor (CGC1521411) and Certified Mold Remediator (MRSR978), serving the tri-county area only.
The tri-county risk picture
Coastal and near-coastal commercial buildings in South Florida face a specific combination that inland buildings do not. Salt-laden air accelerates concrete and rebar deterioration. Older mid-rise and high-rise stock, much of it built decades ago, has aging waterproofing and expansion joints. And the flat or low-slope roofs common on commercial and multifamily buildings are the first thing a storm tests. When a hurricane drives rain sideways for hours, it does not need a hole. It needs a tired sealant joint, a lifted roof membrane, or a hairline crack in a balcony deck.
The buildings that come through a storm with the least damage are almost always the ones that were inspected and sealed before the season started.
Before the storm: the building envelope
The envelope is the continuous barrier that keeps water out: the roof, the walls, the windows and doors, and every joint and penetration between them. Pre-season is the time to find the weak points while the weather is calm and a crew can actually get on the roof and the facade.
A pre-storm envelope review looks at sealant and caulking at joints and penetrations, the condition of the roof membrane and flashing, drainage and scuppers, and any visible concrete cracking or spalling on balconies, walkways, and structural elements. Small failures fixed in June are inexpensive. The same failures discovered through a leak in September are not. See the companion pre-storm building envelope inspection checklist for a walk-through you can run on your own building.
The first 72 hours after a storm
Once the storm passes and the property is safe to enter, the priority is fast assessment and water removal. Standing water and saturated materials are what turn a wind event into a mold and structural problem. In the first 72 hours, a building team should document everything for insurance before anything is moved or cleaned, identify active leaks and water intrusion points, begin drying affected areas, and get a professional eye on anything structural.
This is also the window where a licensed contractor matters most. An untrained crew can miss water that has traveled behind walls, under flooring, or into the HVAC system, and that hidden moisture is exactly what feeds mold growth over the following days.
Structural and concrete recovery
Concrete is where storm damage gets expensive and, in Florida, where it gets legally serious. Wind, water, and salt exposure accelerate spalling, the cracking and flaking that exposes and corrodes the rebar inside balconies, walkways, columns, and decks. After a storm, what looks like cosmetic surface damage can be a sign of deeper deterioration.
For condo associations, this connects directly to Florida’s Milestone Inspection and structural integrity reserve requirements for buildings three stories and taller. Concrete restoration is no longer just a maintenance decision for many boards. It is part of a documented structural obligation. (This is general context, not legal advice. Consult your engineer and association attorney for your building’s specific requirements.) The concrete spalling and balcony damage guide for condo boards covers repair versus restore decisions in detail, and our concrete restoration service page explains the process.
Mold and tenant liability
In a multifamily or commercial building, water intrusion is also a liability question. Mold can begin to grow within 24 to 48 hours in warm, wet conditions, and for a property manager that raises issues of habitability, tenant health, and owner exposure. The safe path is fast drying, professional assessment, and licensed mold remediation when growth is found, rather than waiting to see whether a damp area dries on its own. Deluxe is a Certified Mold Remediator (MRSR978).
Insurance documentation
Commercial storm claims are won or lost on documentation. Adjusters want dated evidence of the building’s condition, the storm damage, and the repairs. A licensed contractor’s inspection and scope report adds credibility that photos alone do not. Document before you clean up, keep everything, and align your timeline with your carrier’s requirements. (Informational only. Consult your carrier and, if needed, a licensed public adjuster.)
Protecting the building year-round
The buildings that survive storm season best treat it as a deadline, not the whole job. A recurring building maintenance program keeps sealant, roofing, and concrete ahead of the damage curve, so the building enters every June already hardened rather than scrambling in August. That is the difference between a planned repair and an emergency call.
Tri-county service and emergency response
Deluxe Waterproofing and Caulking serves commercial and multifamily properties across Miami-Dade, Broward, and Palm Beach, with a 24-hour emergency line during storm season. If your building needs a pre-season envelope review or post-storm assessment, request an inspection or call (888) 553-3589.