Florida Roof Replacement Red Flags to Watch For

Getting a new roof is one of the biggest investments you'll make as a homeowner. In Florida, where roofs face relentless summer heat, punishing humidity, and the constant threat of hurricane-force winds, a properly installed roof isn't a luxury — it's a necessity. Unfortunately, not every roofing crew delivers the quality the job demands.

The good news is that many installation mistakes are visible to an attentive homeowner. You don't need to be a roofing expert to notice when something looks wrong. Knowing what to watch for — and what to do when you spot it — can save you from years of leaks, failed insurance claims, and a roof that won't survive its first real storm. Here are the red flags that should make you stop and ask questions.

Why Installation Quality Matters More in Florida

Florida's building code, particularly in South Florida's High-Velocity Hurricane Zone (HVHZ), sets some of the strictest roofing standards in the country. Those standards exist for a reason. A roof installed with the wrong nail pattern or skipped underlayment isn't just a workmanship problem — it can void your manufacturer's warranty, cause your homeowner's insurance claim to be denied, and leave your home dangerously exposed when the next big storm rolls through.

A roof replacement done right is a long-term asset. One done poorly is a ticking clock. Staying engaged while the work is happening is the smartest thing you can do.

Red Flag #1: Workers Skip or Rush the Underlayment

Underlayment is the water-resistant barrier installed over your roof deck before any shingles or tiles go on. In Florida's climate, it's arguably the most critical layer of your roofing system — it's what keeps your attic and ceilings dry if a shingle gets blown off or cracked.

Watch for these warning signs:

• Crews move to installing shingles almost immediately after stripping the old roof, without spending meaningful time on underlayment
• You can see large sections of bare wood decking exposed for extended periods
• The underlayment doesn't appear to overlap properly at the seams (it should overlap by several inches, following a specific pattern)
• Only a single thin layer is applied when your scope of work called for a double-layer or self-adhering peel-and-stick system

Florida code often requires self-adhering underlayment, especially near eaves and in certain wind zones. If you agreed to a premium underlayment package and it doesn't look like that's what's being installed, speak up immediately.

Red Flag #2: Improper or Inconsistent Nail Patterns

Nailing is everything in a wind-prone state. Each shingle must be nailed in the correct location (the "nailing zone" printed on the shingle itself) with the correct number of fasteners, driven to the correct depth. Florida's high-wind requirements are specific — in many counties, six nails per shingle are required rather than the standard four.

This one is harder to catch from the ground, but here's what you can look for:

• Nails visible above the shingle surface (called "overdriven" or "underdriven" nails), which crack or miss the shingle properly
• Shingles that look wavy, lifting, or misaligned shortly after installation
• Roofers working very quickly in a way that seems too fast to be methodical

If you have the opportunity to walk the perimeter after a section is complete, look at the roof edge. If shingles are already shifting or corners are lifting, that's a serious concern. You can also ask your contractor at the start of the job what nail pattern they're using and where in the shingle they're nailing — a reputable crew will answer without hesitation.

Red Flag #3: Missing or Poorly Installed Flashing

Flashing is the metal material used to seal the joints where your roof meets a wall, chimney, skylight, vent pipe, or roof valley. It's one of the most common sources of leaks, and it's also one of the most commonly botched parts of an installation.

Red flags to watch for:

• Old, rusty flashing left in place rather than replaced with new material
• Flashing that's simply caulked over rather than properly overlapped and integrated with the roofing material
• Missing step flashing along the side of a dormer or chimney
• Valley flashing that appears thin, improperly overlapped, or absent entirely

Flashing problems often don't show up until the first heavy rain — which in Florida might only be a few weeks away. By then, the crew is long gone and you're dealing with a water stain on your ceiling. If you see workers skipping flashing at any penetration point, that's a conversation to have right away.

Red Flag #4: Improper Starter Strips and Drip Edge

The starter course — the first row of material installed along the eave — and the metal drip edge that directs water off the roof deck are easy to overlook, but critical for wind uplift resistance and water management. Florida code requires drip edge on all rakes and eaves.

Warning signs here include:

• No drip edge installed, or old drip edge left in place without inspection
• Starter strips applied incorrectly or skipped entirely
• The first row of shingles beginning right at the roof edge with no visible metal edge below

Red Flag #5: Inadequate Ventilation Work

Roof replacement is the ideal time to address attic ventilation. In Florida's heat, poor ventilation accelerates shingle aging, drives up cooling costs, and can cause moisture problems in the attic. If your roofers are replacing your roof without discussing your ridge vents, soffit vents, or attic airflow, ask why.

A crew that's cutting corners may cap off existing vents or fail to install new ones properly. Look for blocked soffit soffits, ridge vents that weren't cleaned or repositioned, or new shingles installed directly over old ridge vent material without replacement.

What to Do If You Spot a Problem

First, document everything — take clear photos and note the time and date. Then speak directly to the crew foreman or the company's project manager, not just a laborer. Be calm but direct: describe what you observed and ask for an explanation.

If you're not satisfied with the answer, or the issue isn't corrected, you have options:

• Contact your local building department — most Florida counties require a permit and inspection for a full roof replacement, and an inspector can flag code violations
• Consult a licensed roofing contractor for a second opinion, especially if you suspect hidden damage (read more guides for help navigating that process)
• File a complaint with the Florida Department of Business and Professional Regulation (DBPR) if you believe the contractor is unlicensed or in violation

If you're also dealing with storm-related damage, check out our resource on storm damage claims, since installation defects can complicate the insurance process significantly.

Don't Wait Until the Damage Shows Up

The best time to catch a roofing problem is while the work is still happening — not six months later when a leak appears during hurricane season. Staying present, asking questions, and knowing what to look for puts you in control of one of your home's most important systems.

If you're planning a roof replacement and want to start with a contractor you can trust, Rune Roofing can connect you with a vetted, licensed local roofer in Altamonte Springs for a free inspection. Call us today and let us match you with a professional who takes Florida's standards as seriously as your home deserves.