20 Questions About
Common Milestone Inspection Findings: What Engineers Most Frequently Discover in Aging Florida Buildings
One of the biggest concerns condominium boards and property managers have before a Milestone Inspection is simple: "What is the engineer likely to find?"
While every building is different, many of the same structural deficiencies appear repeatedly throughout aging condominium and multifamily buildings across Florida. Decades of exposure to moisture, salt air, humidity, thermal movement, deferred maintenance, and normal aging can gradually affect structural systems and create conditions that require repair.
Understanding the most common Milestone Inspection findings can help associations plan ahead, budget appropriately, and avoid surprises when the inspection report is delivered.
What problems are most commonly found during a Milestone Inspection?
The most common deficiencies include:
Concrete spalling
Reinforcing steel corrosion
Balcony deterioration
Parking garage deterioration
Water intrusion
Structural cracking
Delaminated concrete
Rust staining
Failed waterproofing systems
Deteriorated expansion joints
Deteriorated railings
Drainage deficiencies
These conditions are frequently observed in buildings exposed to Florida's harsh coastal environment.
What causes concrete spalling?
Concrete spalling occurs when pieces of concrete crack, loosen, or break away from the surface.
In many cases, the underlying cause is corrosion of embedded reinforcing steel. As steel corrodes, it expands and creates internal pressure that causes the surrounding concrete to crack and separate.
Spalling may appear as:
Cracked concrete
Loose concrete
Exposed reinforcing steel
Rust staining
Surface deterioration
Although spalling often begins as a cosmetic issue, it can eventually affect structural performance if left unaddressed.
Why does reinforcing steel corrode?
Corrosion occurs when moisture and chlorides penetrate concrete and reach embedded reinforcing steel.
In South Florida, common sources include:
Salt air
Ocean spray
Wind-driven rain
Roof leaks
Balcony leaks
Failed waterproofing
Cracked concrete
As corrosion progresses, structural capacity may be reduced and repair costs often increase significantly.
What causes balcony deterioration?
Balconies are continuously exposed to:
Rain
UV exposure
Salt air
Temperature changes
Occupant use
Common balcony deficiencies include:
Concrete spalling
Corrosion
Waterproofing failures
Drainage problems
Cracking
Deteriorated railings
Balconies are among the most frequently repaired components following Milestone Inspections.
What causes parking garage deterioration?
Parking garages are subjected to constant wear from vehicles, moisture exposure, and chloride contamination.
Common deficiencies include:
Cracked slabs
Delamination
Corrosion
Expansion joint failure
Drainage issues
Structural cracking
Parking garages often represent one of the largest repair costs identified during a Milestone Inspection.
What causes structural cracks?
Not all cracks indicate a structural problem.
However, engineers evaluate cracks carefully because they may indicate:
Structural movement
Settlement
Corrosion
Shrinkage
Thermal expansion
Water intrusion
Overloading
The location, width, pattern, and progression of cracking help engineers determine its significance.
What causes water intrusion?
Water intrusion is one of the leading causes of structural deterioration in Florida buildings.
Common sources include:
Roof leaks
Window leaks
Balcony leaks
Failed sealants
Waterproofing failures
Cracked stucco
Drainage deficiencies
When moisture reaches structural components, corrosion and deterioration often accelerate.
Why do coatings fail?
Protective coatings deteriorate over time due to:
UV exposure
Salt air
Moisture
Improper installation
Lack of maintenance
When coatings fail, underlying concrete and reinforcing steel become more vulnerable to corrosion and deterioration.
What causes façade distress?
Exterior façades experience continuous exposure to weather and environmental conditions.
Common causes of façade distress include:
Water intrusion
Cracking
Corrosion
Thermal movement
Material aging
Structural movement
Milestone Inspections frequently identify façade conditions requiring further investigation or repair.
What are unsafe conditions?
Unsafe conditions are deficiencies that present an immediate threat to public safety or structural stability.
Examples may include:
Falling concrete
Severely deteriorated balconies
Structural instability
Unsafe railings
Excessive deterioration
Severe corrosion
When unsafe conditions are identified, immediate corrective measures may be recommended.
How serious are rust stains?
Rust stains often indicate active corrosion occurring beneath the concrete surface.
Although staining itself may appear minor, it can be an early warning sign of hidden deterioration.
Engineers frequently investigate rust stains further to determine the extent of underlying corrosion.
What is concrete delamination?
Delamination occurs when layers of concrete separate beneath the surface.
The condition is commonly caused by:
Corrosion
Freeze-thaw damage
Poor construction practices
Moisture infiltration
Delaminated concrete often sounds hollow when tested using sounding methods.
What is structural movement?
Buildings naturally experience small amounts of movement due to:
Thermal expansion
Wind loads
Settlement
Material behavior
Excessive movement, however, may indicate structural concerns that require evaluation.
Engineers assess movement through observations, crack patterns, measurements, and structural analysis.
How do engineers assess deterioration?
Milestone Inspection engineers use multiple evaluation techniques, including:
Visual inspections
Concrete sounding
Corrosion investigations
Moisture testing
Material sampling
Crack mapping
Structural analysis
The goal is to understand both the symptoms and the root causes of deterioration.
What happens if repairs are ignored?
Deferred maintenance rarely becomes less expensive over time.
Ignoring structural deterioration can lead to:
Increased repair costs
Expanded deterioration
Safety concerns
Water intrusion
Corrosion progression
Potential enforcement actions
Early intervention is often the most cost-effective strategy.
Can deficiencies affect insurance coverage?
Yes.
Insurance carriers are increasingly evaluating building condition when determining:
Premiums
Coverage terms
Renewals
Deductibles
Significant deterioration may impact insurability or increase insurance costs.
Can deficiencies affect property values?
Potential buyers often review engineering reports and inspection findings before purchasing units.
Significant structural deficiencies can influence:
Property values
Financing
Marketability
Buyer confidence
Proactive maintenance helps protect long-term property value.
How are repairs prioritized?
Engineers typically prioritize repairs based on:
Life safety
Structural significance
Rate of deterioration
Water intrusion risk
Cost effectiveness
Not every deficiency requires immediate repair, but some conditions demand urgent attention.
How quickly should repairs begin?
The answer depends on the severity of the findings.
Life-safety concerns generally require immediate action, while less severe conditions may be addressed through phased repair programs and long-term capital planning.
An experienced engineer can help associations establish realistic repair schedules.
Can deterioration be prevented?
While no building lasts forever without maintenance, deterioration can be significantly reduced through proactive asset management.
Effective strategies include:
Routine inspections
Waterproofing maintenance
Sealant replacement
Concrete restoration
Drainage improvements
Corrosion mitigation
Preventative maintenance programs
Many of the most expensive repair projects begin as relatively minor issues that were left unaddressed for years.
How Can RAS Engineering Help?
RAS Engineering helps condominium associations identify structural deficiencies before they become emergencies. Our team performs Milestone Inspections, concrete investigations, corrosion mapping, water intrusion evaluations, repair planning, and construction oversight services throughout Florida.
By understanding the most common causes of deterioration and implementing practical repair strategies, associations can protect residents, preserve property value, and extend the service life of their buildings.
Request a Proposal
If your property is experiencing water intrusion, facade deterioration, structural distress, recurring failures, or construction-related concerns, contact RAS Engineering for a professional forensic evaluation.
Our engineers serve condominium associations, property managers, attorneys, contractors, and building owners throughout South Florida.
Contact RAS Engineering today to schedule a forensic testing consultation and learn how our investigative approach can help identify the root cause of your building concerns.

