Wet Season Roof Leaks in Southwest Florida

When is the wet season in Southwest Florida?

It typically starts in the last week of May, around the 25th, and ends in early October, around the 10th. The transition can be abrupt or spread over a couple of weeks. Hurricane season is a separate calendar that opens June 1 and closes November 30, overlapping most of the wet season.

What defines the season is the pattern rather than the total. For most of it, mornings are usable and a line of thunderstorms builds in the afternoon, often daily, with heavy rain in short bursts, frequent lightning and localized flash flooding. A roof that has handled five months of dry-season weather gets tested every afternoon for four months.

The two calendars matter for different reasons. The wet season is what produces routine leaks: water finding a flashing detail that has loosened, a vent boot that has aged, a valley that cannot keep up with the rate of rainfall. Hurricane season is what produces damage, where wind lifts or removes covering and the rain that follows walks straight in.

The dry season, roughly November to May, is drier rather than dry, and it is the sensible window for the unglamorous checks. Nothing about a roof gets better by waiting, and the difference between a repair made in March and the same repair made in July is usually the ceiling underneath it.

How does wet season rain get through a roof?

Usually at a detail rather than through the field of the covering: a vent boot, a flashing at a wall or chimney, a valley, a skylight curb, or a fastener that has worked loose. Wind-driven rain also arrives sideways, which defeats laps and overlaps designed for water falling straight down.

Rainfall rate is the first factor. A short, intense downpour puts more water on a roof per minute than a long, steady rain, and a valley or gutter sized for the average becomes a dam at the peak. Water that cannot drain fast enough backs up, finds a lap, and goes the wrong way under it.

Wind is the second. In a thunderstorm the rain is not falling, it is being thrown, and the angle is what matters. Horizontal rain gets behind drip edges, under tile ends, into vents and soffits and around window heads. This is why a house can have a leak that only appears in storms from one direction, which makes it maddening to locate on a calm day.

Age and heat are the slow third factor. Sun and heat on a roof surface for most of the year is hard on sealants, boots and exposed fasteners, and the detail that was watertight two seasons ago is the one that gives up first. None of this requires a dramatic event; most wet season leaks are a small failure that met a big rain.

• Plumbing vent boots, where the rubber or lead has split or lifted.
• Flashing where the roof meets a wall, a chimney or a changed roof plane.
• Valleys, where two slopes concentrate water into one channel.
• Skylight and curb details, including the sealant around them.
• Loose or backed-out fasteners, and tile or shingle ends lifted by earlier wind.
• Soffit and vent openings that wind-driven rain can be pushed into.

Where does the water show up inside?

Rarely directly under the hole. Water runs along the underside of sheathing, down a truss or a top plate, and drops where it finds an opening, so a stain at a ceiling light, an air conditioning vent or a wall head can be some distance from the entry point above.

The giveaways are usually a brown ring on the ceiling that grows after each storm, a ceiling that sags or feels soft, paint or texture bubbling, a light fixture or vent that drips, and a damp streak down one wall from the top. Insulation in the attic is often the wettest thing in the house and the last thing anyone looks at.

A sagging ceiling deserves respect, because wet gypsum is heavy and it fails all at once rather than gradually. Keep people out from under it, do not poke it to see how bad it is while standing beneath it, and leave the light switch for that room alone if water is near a fixture. Those are the two injuries this kind of leak actually causes.

Then there is the part that is easy to miss. Water in an attic lands on insulation and on the top of the air handler and duct work, and a wet duct spreads moisture and whatever it has picked up around the whole house every time the system runs. If a stain is near a vent, say so when you call. Our ceiling water damage page covers how those ceilings are opened, dried or removed.

What should I do while it is still raining?

Protect people first, then possessions, then evidence. Move what you can out of the way, put a container under an active drip, keep away from ceilings that sag and fixtures that are wet, and photograph everything. Then call, so the work is scheduled rather than waiting for the sky to clear.

Do not go on the roof. A wet tile or shingle roof in a thunderstorm is one of the more dangerous places on a residential property, and lightning in these storms is frequent rather than occasional. Anything that needs doing up there is for daylight, dry conditions and someone equipped for it.

Inside, the useful work is containment and recording. A bucket and a towel do not fix anything but they keep the water in one place. Pulling a rug off a wet tile floor stops a stain. Photographs with a date, and a note of the time you first saw the water, are worth more later than anyone's recollection of which storm it was.

Call rather than wait. (833) 490-5225 is answered 24 hours a day and a crew is dispatched as fast as one is available, and getting on the schedule while it is raining is better than starting the conversation the next morning when the next line of storms is already building. Our roof leak water damage page sets out what the visit covers.

• Move furniture and electronics out from under the drip, and lift what you cannot move.
• Catch the water where it lands rather than letting it spread across a floor.
• Stay out from under any ceiling that is sagging, bulging or soft.
• Leave switches and fixtures alone where water is near them; use a flashlight instead.
• Photograph the ceiling, the floor and the contents before anything is moved.
• Write down the time the water first appeared, and keep the note with the photographs.

What does tarping cover, and what does it not?

A tarp or a board-up is an emergency measure that stops more water arriving while a permanent repair is arranged. It is not roof repair, it is not weatherproofing for the season, and it does not replace the work of a roofing contractor. Its purpose is to make drying possible.

This distinction matters more here than in most places, because after a storm the queue for roofing work can be long and a tarp becomes the status quo for longer than anyone intended. A tarp is fabric held down by fasteners and battens on a surface that is already compromised, and wind works on it continuously. It buys time; it does not buy a season.

We tarp and board up as an emergency measure and we do not replace roofs. Roof replacement and repair are building work, and in Florida that generally falls under contractor licensing through the Department of Business and Professional Regulation, where you can look up any contractor's license before signing anything. Getting that call started early is the single most useful thing an owner can do while the drying runs.

The reason mitigation cannot simply wait for the roofer is the drying window. The EPA advises drying water-damaged materials within 24 to 48 hours, and in a wet season with storms forecast every afternoon, a house that is not covered and not drying is accumulating damage rather than holding steady. Cover, extract, dry, then repair, in that order.

How are wet ceilings and attics dried?

By removing what cannot be saved, then drying what can with controlled airflow and dehumidification, verified by repeated moisture readings. Saturated insulation comes out, wet drywall is cut back to a line, and framing and sheathing are dried in place while the house is kept closed and conditioned.

Insulation is the first decision. Wet batts and wet blown insulation hold water against the sheathing and framing and block the airflow that would otherwise dry them, so they generally come out rather than being dried. That is also what makes the attic accessible to equipment and to anyone who needs to find where the water came in.

Drywall is judged on how wet it is and how long it has been that way. A ceiling that took a short soak and reads down quickly can sometimes stay; one that has been wet through several storms, or that is sagging, is removed to a straight line so that the repair is predictable. Textured ceilings add a repair complication, which is worth raising before anything is cut.

Then the equipment runs for days, not hours, and the house stays closed. In warm, humid air for most of the year, opening a wet building to the outdoors can add moisture rather than remove it, so dehumidifiers and air movers control the drying and someone returns to read the same points until the numbers settle. Our structural drying page explains how those readings are taken and recorded.

What about leaks after a hurricane rather than a thunderstorm?

Storm damage changes the scale rather than the method. Wind can remove covering across a whole roof plane, so the water arriving is not a drip but a volume, and it often comes with debris, power problems and a region-wide queue for every trade at once.

Hurricane Ian came ashore as a strong Category 4 over Cayo Costa on September 28, 2022, and press accounts of the post-storm reporting put surge at 10 to 15 feet above ground at Fort Myers Beach, about 13 feet at Sanibel, and 6 to 9 feet at downtown Fort Myers, Matlacha, Pine Island and parts of Cape Coral. Lee County's recovery from it shaped how people here think about storm water, and parts of the region were still rebuilding years later.

The practical lesson owners took from it is about sequence. Document before you clean, cover before you wait, and get the right trade called early, because the roofing and rebuilding queue is the long pole. It is also worth knowing that where a repair is substantial, the city or county may have a say in how the rebuild has to be done; our 50 percent rule guide explains why to ask the city before rebuilding.

Rain from above and flood water from outside are not the same problem, and they are usually not covered the same way either. A homeowners policy generally responds to sudden and accidental water damage and generally excludes flood, which is written separately through the National Flood Insurance Program or a private insurer, and the policy and the insurer decide. Our hurricane and flood water cleanup guide covers the flood side.