Roofing
How Long a Roof Lasts in Florida
A covering rated for a given number of years is rated under conditions that do not describe Southwest Florida. This page explains what actually shortens a roof here, why age and condition are different questions, and how to work out where yours really is.
Limited time offer 4 point home inspection or wind mitigation with any new roof See what is includedA roof in Florida usually lasts less time than its rated service life, and the gap is widest close to salt water. Rated life assumes an average climate. Here the roof takes year round ultraviolet exposure, heavy rain, and in coastal areas constant salt, and it may take hurricane force wind at any point in its life. Age alone does not tell you what a roof has left.
People ask how long a roof lasts and expect a number. The useful answer is a different question, which is what is going to end this particular roof, and how close it is.
Why does a roof last less time in Florida?
A manufacturer rates a covering under test conditions and an average climate. Southwest Florida is not an average climate.
Ultraviolet exposure runs all year rather than for part of it, and that is what wears the surface of a shingle away. Rain arrives hard and often, which finds any detail that was not finished properly. Near the coast, salt sits on every piece of metal on the roof continuously.
Then there is wind. A roof here may take hurricane force wind once in its life or three times, and that is not something a rating can account for.
What actually ends a roof here?
Rarely the covering wearing out evenly across the whole roof. That is the picture people have and it is not what we find.
More often it is one of three things. Flashing at a wall, a chimney, a vent or a skylight that was detailed badly and has been letting small amounts of water in for years. Fasteners and metal corroded by salt, holding a covering that still looks sound. Or storm damage that creased or lifted a covering without removing it, which does not leak immediately and shortens that slope permanently.
All three are invisible from the street. That is the problem with judging a roof by its age.
Is roof age the same as roof condition?
No, and the difference matters more here than almost anywhere.
A fifteen year old roof on a sheltered inland house that has never taken a direct hit can be in better condition than a ten year old roof on a canal house that went through a hurricane in its second year.
We have opened roofs that were younger than their owners expected to be a problem and found decking that had been wet for years. We have also inspected roofs well past the age their insurer objected to and found them sound. Neither outcome is unusual.
Why do insurers ask about roof age instead?
Because age fits on a form and condition does not.
An insurer is pricing the chance of paying for a roof in the next few years. Age is the simplest predictor available and it requires no inspection. That it is a rough predictor is not the insurer's problem to solve.
This is why a roof in good condition can still trigger a non renewal notice, and why documenting the condition is worth doing before the notice arrives rather than after.
How do I tell where my roof actually is?
From the ground, look at the gutters. Granules collecting there mean a shingle surface is wearing away. Look along the roof line for anything that is not straight. Look at the metal: at the valleys, around vents, at the edges.
From inside, look at ceilings and at the attic if you can get into it safely. A brown ring or a soft patch is not the start of a problem, it is the middle of one.
Do not go up on a wet roof or up a ladder in wind. More people are hurt inspecting roofs than by the weather that damaged them.
What makes a roof last longer here?
Detailing, mostly. The flashing, the fastening and the finish at every point where something comes through the roof. That is the invisible part of the work and it is the part that decides the outcome.
After that, maintenance that actually happens. Keeping debris out of valleys and gutters, and having the roof looked at after any serious storm rather than only when something leaks.
We will not tell you a number of years for your roof over the phone, because the number would be made up. We will come and look and tell you what we find.
If a non renewal notice has arrived, bring it with you. What the carrier is objecting to changes what the useful next step is.
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