Here is a call we get almost every week once the summer storms settle into their afternoon rhythm: the house roof is fine, but water is dripping onto the patio furniture under the lanai. Or the carport ceiling has a brown stain that keeps growing. Or the screened porch smells like a wet towel every time it rains.
Attached covered structures — lanais, screened porches, patio covers and carports — are the most ignored roofs in Florida. Nobody thinks about them until they fail, and they almost always fail before the main roof does. There are good structural reasons for that, and they are worth understanding before you call anyone for a price.
The Four Kinds of Covered Structures in Volusia County
“Lanai roof” means at least four different things depending on which decade your house was built in, and the repair path is completely different for each one.
1. A framed, shingled porch roof. Real rafters, real decking, real shingles, tied into the main roof or into an exterior wall. This is the most common setup on newer construction in Port Orange, Deltona and the DeLand corridor. It is a roof in every sense — it just usually runs at a much shallower pitch than the house.
2. An aluminum pan roof. Hollow, roll-formed aluminum panels — sometimes called W-pan or hollow-pan — that snap or screw together and span from a wall-mounted header to a front beam. Extremely common on Florida homes built from the 1970s through the 1990s, and on additions of any era. No underlayment, no deck, no attic. Just metal.
3. An insulated aluminum panel roof. A modern foam-core sandwich panel with an aluminum skin on both faces. Structurally rated, quieter in the rain, and it keeps the space under it dramatically cooler than a hollow pan. This is what most pan roofs get upgraded to.
4. A screen enclosure or pool cage with a solid roof section. An aluminum cage where part of the top is screened and part is a solid panel — usually right against the house. The solid section is where the leaks live.
Before anyone quotes you anything, you should know which one you own. If you can stand under it and look up at hollow metal channels, it is a pan roof. If you see a drywall or bead-board ceiling, there is framing above it and you have a real roof.
Why These Roofs Leak Before the House Roof Does
The slope problem
This is the single biggest reason, and it is almost never explained to homeowners.
Asphalt shingles are a water-shedding product, not a waterproofing membrane. They rely on gravity moving water off fast enough that it never gets under the tab. Shingle manufacturers do not permit their product below a 2:12 pitch at all, and between 2:12 and 4:12 they require a low-slope application — typically a doubled or fully-adhered underlayment underneath. Most Florida lanai and porch roofs were framed somewhere between 1:12 and 2.5:12, because the builder needed to get under an existing eave without dropping the ceiling too low.
Do the math and you get the outcome we see constantly: a shingled lanai roof installed at a pitch shingles were never rated for, with a single layer of felt under it. It works for a few years. Then a windy afternoon storm pushes water sideways up under the tabs and it stops working. That is not a workmanship failure so much as a materials-choice failure — the wrong product was put on the wrong slope. It is also why the honest fix is often a low-slope membrane rather than more shingles.
The tie-in
Every attached cover has a seam where its roof dies into the wall of the house. That transition has to be flashed — step flashing up the wall, counterflashing cut into the stucco or tucked under the siding, and a proper termination at each end.
What we find instead, over and over, is a bead of caulk. Sometimes a strip of roll roofing turned up the wall and tarred. Caulk has a service life measured in single-digit years under Florida UV. When it lets go, water runs down the inside of the wall and shows up feet away from where it entered — which is why so many people chase the wrong spot for months. The same principle applies across the whole roof, and we go deeper on it in our guide to where Florida roofs actually leak first.
The fasteners
Aluminum pan roofs are held together and held down by screws through the metal, usually with neoprene washers. Aluminum expands and contracts hard in the Florida sun — a long pan moves a noticeable amount between a 70-degree morning and a scorching afternoon panel surface. Twenty years of that cycle backs screws out, elongates the holes and flattens the washers. Every one of those becomes a pinhole.
The thing that is not a leak at all
Worth saying plainly, because it saves people money: an uninsulated hollow pan roof will sweat. Warm humid air hits the cool underside of bare metal and condenses, then drips. Homeowners call it a leak, chase it in dry weather, and find nothing. If the dripping happens on humid mornings without rain, or right after the A/C has been running hard in a partially enclosed lanai, you have a condensation problem. The fix is insulation — usually a switch to insulated panels — not sealant.
What a Roofing License Covers, and What It Does Not
This matters more on lanais than on any other job, so we will be direct about it.
A Florida roofing contractor license (ours is CCC 1327602) covers roofing systems. When the work goes beyond the roof covering — replacing a rotted ledger board, sistering or replacing rafters, setting new posts or beams, or framing a new structure where an aluminum cover used to be — that is structural work under a general contractor license. We hold that too: CGC 1509441.
That combination is genuinely useful on this specific kind of job, because lanai roofs rarely fail in only one way. A twenty-year-old pan roof that has been leaking at the wall for five seasons has usually taken the header and the fascia behind it with it. A roofing-only contractor has to stop at the rot and hand you off, or worse, cover it up. We can open it, replace the framing, and re-roof it under one permit.
What we will tell you we do not do: the aluminum cage itself. Screen enclosure framing, screen replacement and pool cage rebuilds are a specialty trade, and if that is the actual problem we will say so and point you to someone who does it all day.
Yes, It Needs a Permit
Attached covered structures are permitted work in Volusia County and in the municipalities inside it. Roof covering replacement on an attached structure pulls a permit. Structural repair or a new cover pulls a permit and often requires an engineered detail showing the assembly meets the design wind speed for your address — and coastal Volusia carries a meaningfully higher design wind pressure than the western side of the county.
Two practical consequences:
- Unpermitted patio covers surface at the worst time. They turn up during a sale, an appraisal, or a 4-point inspection, and they turn up as an open problem the seller has to resolve on a deadline. We see this constantly on 1980s and 1990s homes where a previous owner had a cover added by a handyman.
- A permit protects you. An inspected tie-in and an inspected attachment schedule is the difference between a covered claim and a denied one after a storm.
Our full walkthrough of how the Volusia County roofing permit process works covers the timeline and inspection sequence in detail.
Do the Lanai at the Same Time as the House
If your main roof is within a few years of replacement, do them together. This is the single best piece of cost advice we can give on this topic, for four reasons:
- One mobilization. A large share of the cost of a small roof is simply getting a crew, a dumpster and materials to your address. Folding the lanai into a full re-roof spreads that across the whole job instead of paying it twice.
- One tie-in, done once. If the lanai roof and the main roof are replaced at different times, someone has to cut into finished work to marry them. That seam becomes the weakest point on the property.
- The shingles will actually match. Shingle color lots shift over the years, and some colors get discontinued outright. Matching a five-year-old roof is a gamble; matching a five-day-old roof is not.
- One permit, one warranty, one inspection. Cleaner paperwork if you ever sell, and one company standing behind the whole thing — including our 5-year labor warranty.
If the main roof genuinely has ten good years left, that changes the calculus and we will tell you so rather than sell you a roof you do not need yet.
Repair or Replace? A Rough Guide
Usually repairable: isolated fastener leaks in an otherwise sound pan roof; a failed wall flashing where the framing behind it is still dry; a handful of lifted shingles on a lanai roof under ten years old; a single failed panel seam.
Usually a replacement conversation: shingles installed below their rated slope that have already failed once; any soft spot in the ceiling or the header, which means water has been in the framing long enough to rot it; a pan roof with widespread fastener backout and chalky, oxidized metal; and any cover where you cannot find the leak because there are simply too many candidates.
The judgment call sits on the framing. Roof coverings are replaceable at a predictable cost. Once water is in the structure — and on an attached cover that means the ledger, the header and the fascia behind it — the number moves, and patching over it only buys you a worse version of the same problem in two years.
What Drives the Price
We give free estimates, and we would rather look at your actual structure than quote a range you will hold us to. But you should know what a legitimate estimator is pricing:
- Square footage and access. A screened lanai a crew has to work inside costs more per square foot than an open patio cover they can walk.
- What is going back on. Low-slope membrane, standing-seam or 5V metal, insulated panels and shingles are four different price tiers.
- Framing condition. Nobody can price rot they have not seen yet. A good estimate names a unit price for framing and decking replacement up front so there is no surprise mid-job — one of the line items to look for when you compare roofing quotes side by side.
- Tie-in complexity. Cutting counterflashing into stucco and patching it correctly is real work. Sliding it under vinyl siding is not.
- Permit and engineering. Structural changes may need an engineered detail. That is a real line item, not padding.
- Whether it rides along with a full re-roof. As above — this one moves the number the most.
Five Things to Check Under Your Lanai This Weekend
- Stand under it and look at the wall line. Staining, bubbled paint or a dark seam where the roof meets the house means the flashing is done.
- Push up on the ceiling near the house. Any give, sponginess or sag is water in the framing.
- Look at the screws. On a pan roof, walk the front beam and look for screw heads standing proud of the metal, or rust weeping out from under washers.
- Check the front edge. The outer fascia and the gutter on a patio cover take the most water and the most sun. It is usually the first thing to go.
- Note when it drips. Only during rain is a leak. Humid mornings with no rain is condensation. Those are two different jobs and two different prices.
Get an Honest Look at It
We have been roofing Volusia County for more than twenty years — Daytona Beach, Port Orange, New Smyrna Beach, Ormond Beach, DeLand, Deltona and everywhere in between. We are licensed for both the roofing and the structural side, we are insured, and we are CertainTeed ShingleMaster credentialed with dual Master Craftsman certification.
If your lanai, porch, patio cover or carport is leaking, staining or sagging, we will come out, tell you which of the four types you actually own, tell you whether it is a repair or a replacement, and give you a written estimate at no charge. If it turns out to be a screen cage problem and not a roofing problem, we will tell you that too.
Call Affordable Roofing & Construction at 386-392-8952 for a free estimate.
Affordable Roofing & Construction — Licensed & Insured — CCC 1327602 (Roofing) | CGC 1509441 (General Contractor). Serving Volusia County and Central Florida for over 20 years. Every roof replacement includes a wind mitigation report and a 5-year labor warranty.
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