Planning guide
How Often Should You Repaint a House Exterior in Northeast Florida?
Sooner than the paint can label suggests, and the interval depends far more on what your house is made of and which way the wall faces than on the brand in the bucket.
Florida sun is the most destructive thing a coating will ever face. Combine it with humidity, salt in the air near the coast, and driving summer rain, and a paint job that would last fifteen years in Ohio will not last fifteen years here.
Realistic intervals by substrate
Stucco holds paint the longest of the common substrates here, and with a quality acrylic or elastomeric coating, properly prepared, you are typically looking at somewhere around a decade before it needs redoing.
Fiber cement siding does well, particularly if it still carries its factory finish, which outlasts a field-applied coating by a wide margin. Once it has been field painted, it moves into the same range as other siding.
Wood siding and trim is the shortest interval and the highest maintenance. Wood moves with moisture, it takes on water at every joint and end grain, and it is where failure starts on nearly every house that has it. Expect to be dealing with wood trim well before the rest of the house needs attention.
Hardboard and older composite siding is the problem child. It swells and delaminates once water gets in, and paint is the only thing keeping the water out, so a lapse in maintenance is expensive rather than cosmetic.
Brick and vinyl are usually not painted, and if they have been, they carry their own rules.
Why the numbers are approximate, and what actually decides it
Which way the wall faces. South and west elevations take the sun and fail first, often by years. It is entirely normal for the south face of a Jacksonville house to be chalking and faded while the north face still looks fine. This is useful, because repainting only the failing elevations is a legitimate and much cheaper strategy, and a good painter will tell you when that is the right call rather than selling you the whole house.
Your color. Deep, saturated colors fade faster, and reds and dark blues fade fastest of all, because the organic pigments that produce them break down under ultraviolet light. Earth tones, whites, and colors built on inorganic oxide pigments hold up far better. If you love a deep color, have it, and accept a shorter interval on the sunny elevations.
How close you are to the water. Salt accelerates everything, particularly at Fernandina, Ponte Vedra Beach, and the coastal stretches of St. Augustine and Palm Coast.
Whether the last job was done properly. Which is the biggest variable of all.
The signs it is time
Do not wait for peeling. By the time paint is peeling, water has been getting into the substrate for a while, and the repair is no longer a paint job.
Look for:
- Chalking. Rub a hand on a sunny wall. If it comes away with a film of pigment, the binder has broken down under UV. This is the earliest reliable signal.
- Fading that is obvious between elevations, particularly on the south and west.
- Hairline cracking in the film itself, sometimes called alligatoring.
- Caulk that has split, shrunk, or pulled away at trim joints, window perimeters, and penetrations. Caulk fails before paint does, and a failed caulk joint is an open path into the wall.
- Mildew that keeps coming back after cleaning.
- Any bare wood showing at trim ends, fascia, or door casings.
The mildew problem, which is different from dirt
Northeast Florida humidity means mildew grows on shaded walls, north-facing elevations, and anywhere under trees. It looks like dirt or staining, and people pressure wash it and are surprised when it returns in weeks.
Mildew is alive. Washing removes the visible growth and leaves the spores. It has to be killed, which means a bleach or dedicated mildewcide solution with dwell time, then rinsed, before any paint goes on. Painting over live mildew means it grows through the new coating, and no warranty covers that.
A paint with a mildewcide package in it helps on the walls that are prone to it, but it does not substitute for killing what is already there.
Prep, which is the entire job
The difference between a repaint that lasts five years and one that lasts twelve is almost never the paint. It is these:
Washing correctly. Pressure washing stucco at too high a pressure damages the surface and drives water into the wall. On stucco it wants low pressure and a cleaning solution rather than brute force. On wood, high pressure raises the grain and forces water behind the siding.
Then letting it dry. This is the single most common Florida failure. A wall washed on a humid morning is not dry that afternoon, whatever it looks like. Painting over a substrate holding moisture traps that moisture behind an impermeable film, and it comes off in sheets a year later. Stucco especially holds water. A day or two of genuinely dry weather between washing and painting is not a delay, it is part of the job, and a crew that washes and paints the same day is doing you no favors.
Removing chalk. New paint will not bond to a chalked surface. It has to be washed off completely, and heavily chalked walls need a bonding primer.
Scraping, sanding, and priming bare spots. Bare wood should be primed promptly rather than left exposed, and any exposed wood should be primed before topcoat, not just painted over.
Caulking, properly. Every joint, every penetration, every window and door perimeter. This is where water gets in and it is the least glamorous and most valuable hour on the job.
Repairing rot and stucco cracks first. Paint is not a repair material. A cracked stucco wall painted over is a cracked stucco wall with paint on it.
Elastomeric on stucco: useful, and not always
Elastomeric coatings are thick, flexible, and bridge hairline cracks, and on sound stucco they are excellent and long-lived.
The caution is that they are close to waterproof, which means that if the wall has a moisture source behind it, a leak, a flashing failure, a buried weep screed, the elastomeric traps it. You then get blistering and sheeting failure, and you have made a wall problem worse while making it invisible.
So the sequence matters: establish the wall is sound and dry, then coat it. Not the other way round.
When to paint here
Spring and autumn are the best windows. Mild temperatures, lower humidity, and reliable drying.
Summer works with care. The constraint is surface temperature rather than air temperature: a south-facing wall in direct August sun exceeds what most coatings are rated for, and paint applied to a hot surface skins before it flows out, giving you lap marks and poor adhesion. The answer is to follow the shade around the house through the day, which a competent crew does automatically. The other constraint is the afternoon thunderstorm, and paint needs a few hours before rain.
Winter is generally fine here, with an eye on overnight lows and on morning dew, since a surface wet with condensation is not a surface to paint.
Two coats, and why it is worth arguing about
The lifespan of a coating is a function of how thick the dry film is. Two proper coats over prepared substrate will substantially outlast one heavier coat, and it will outlast two thin ones. When comparing quotes, the number of coats and the spread rate are the specification that matters, and they are frequently where a cheaper quote is cheaper.
What to ask for in a quote
- What washing method and solution, and how many days between washing and painting?
- Is mildew being treated or just washed?
- What repairs are included, and what happens if more rot is found?
- How much caulking, and where?
- What primer, on what surfaces?
- How many coats, and what product?
- What does the warranty cover, and for how long?
A quote that answers those is comparable to another quote that answers them. A quote that is a number and a color is not comparable to anything.
Clean Slate Painting handles interior and exterior painting across Jacksonville, Ponte Vedra Beach, Nocatee, St. Augustine, Fernandina Beach, Yulee, Middleburg, and Palm Coast. If only two elevations of your house have failed, we will tell you that, and we would rather do the prep properly than come back in four years.