Metal Roof Repair in Austin: Leaking Screws, Seams and Flashing
Yes, most metal roofs can be repaired. On a screw-down (exposed-fastener) roof, the leak is usually at a screw whose rubber washer has dried out or that has backed out of the wood. On a standing seam roof, it is usually at the ridge, the eaves, the trim or a pipe, not the panels themselves. The fix is to repair that detail properly, not to coat the whole roof in sealant.
Vantage Roofing repairs metal roofs in Austin, Round Rock, Georgetown and nearby towns. We'll show you photos and tell you honestly whether it needs a repair, a replacement, or nothing at all.
Can a metal roof be repaired, or does it need to be replaced?
Most of the time it can be repaired. Metal panels rarely fail all at once. What fails are the small parts that seal it: screw washers, foam closures under the ridge cap, flashing at walls and chimneys, and boots around vent pipes. Replacement comes up when the panels themselves are failing, which we cover below.
Why does a screw-down metal roof leak?
On an exposed-fastener roof, every screw you can see is a small hole sealed by a rubber washer under its head. Metal building design guides explain that each screw has to be driven straight and to the right depth. Too loose, and the washer never seals. Too tight, and the washer squashes or splits and the panel dimples, which holds water right at the hole.
Central Texas heat adds to it. A panel grows in the afternoon sun and shrinks at night, and that daily movement slowly works screws loose. The sun also hardens washers until they crack.
Signs we look for on these roofs:
Screw heads sitting higher than the ones around them.
Cracked, flattened or missing rubber washers.
Rust rings around screw heads.
Dimples in the panel at a screw.
A leak that shows up only in wind-driven rain.
Why doesn't tightening the screws fix it?
Because the wood around a backed-out screw is already worn, and the old washer is already hard. Snugging it down is a temporary fix at best. The repair that holds is to remove the old screw and put in a slightly larger screw with a new washer, so it bites fresh wood.
A metal panel maker's owner's manual describes the same repair: take out the stripped screw, put butyl sealant in the hole, and install an oversize long-life fastener. We check screws slope by slope and replace the failed ones.
Where do standing seam roofs leak?
Standing seam panels have no exposed screws mid-roof. Hidden clips inside the seams hold the panels and let them move with the heat. So leaks show up at the edges and openings instead:
Ridge and hip caps. Foam closures under the cap can harden, shrink or split, and the sealant behind them can let go.
Eaves and panel ends. Missing or crushed closures let wind-driven rain and pests in.
Walls, chimneys and skylights. Flashing laps that were short or never sealed right.
Pipes and vents. A panel maker's bulletin says a pipe should not go through a standing seam. It belongs in the flat of the panel, or inside a curb.
Seams that were fastened through. A screw through a seam stops the panel from moving and can open a leak later.
The fix is to rebuild that detail the way the panel maker intended.
Can I just use metal roof sealant, tape or a coating?
A patch can slow water down in an emergency, but it usually isn't a permanent fix. The Metal Construction Association, an industry group, warns that more sealant is not always better: extra sealant at joints built to move can cause separation and buckling, and sealant cannot fix poor installation. Caulk over a loose screw also hides the problem from the next inspection.
What causes rust spots and stains on a metal roof?
Often it's a metal the roof was never meant to touch. Panel makers and steel producers warn that contact with copper or lead, or water draining off them, causes galvanic corrosion. Common culprits:
Lead boots on plumbing vents.
Copper lightning rod cable or copper trim.
Water from a copper gutter or AC line draining onto the roof.
Metal shavings left behind after drilling or cutting, which rust and stain the panels.
When we find rust like this, we fix the source too, or it comes back.
Is a hail dent on a metal roof a problem?
Sometimes it is just looks. The Texas Department of Insurance (TDI) notes that metal roofs can dent or scratch from hail, wind-blown debris and branches, and that this may not affect how the roof performs.
Around here that matters: NOAA's Storm Events Database shows 4-inch hail in Round Rock on September 24, 2023, and 1-inch hail around Round Rock, Georgetown and Cedar Park on April 18, 2026.
After a storm, we check for cracked paint, split seams, punctures and damaged flashing or vents, which can lead to leaks. Round dents in otherwise sound panels may be cosmetic.
Repair, replace, or leave it alone?
A repair fits when the leak traces to screws, one flashing detail, a pipe boot or a short run of ridge cap, and the panels are sound. If failed screws show up everywhere, replacing them across the roof may be the better repair.
Replacement fits when panels are rusted through in several places, the wood underneath is rotted over a wide area, or storm damage covers most of the roof.
Sometimes the roof is fine. Condensation under the panels or an AC drain line can look like a roof leak. If that's what we find, we'll tell you.
In the City of Austin, a permit generally isn't needed for roof covering work that doesn't affect the roof structure, or for replacing up to 128 square feet of roof decking. Homes in the Wildland-Urban Interface area need one when half or more of the roofing is replaced.
Vantage Roofing backs its work with a 10-year workmanship warranty on full replacements and up to 1 year on service repairs.
Schedule a metal roof inspection
Call (737) 383-1768 to schedule a free roof inspection in Austin, Round Rock, Georgetown or nearby. Tell us where the water shows up inside. You can also use our contact page or read what to check after a roof leak after rain.
Frequently asked questions
Can you come look at my metal roof first before doing anything?
Yes. Vantage Roofing starts with a free roof inspection. We check the screws, seams, flashing and pipe boots, take photos, and show you what we found. If it's a small repair, we'll say so. If it isn't worth fixing yet, we'll tell you that too. You get a written estimate before any work, and you decide what happens next.
How do I know if my metal roof is a screw-down or standing seam roof?
Look at the panels from the ground. If you see rows of screw heads across the flat parts of the panels, it's an exposed-fastener, or screw-down, roof. If the panels have raised seams running from the ridge down to the eave and no screws in the middle, it's standing seam.
Will insurance cover hail damage on my metal roof?
It depends on your policy. TDI says a policy that gives a discount for a metal roof may exclude cosmetic damage, meaning dents that change the look but not how the roof works. Under the Texas cosmetic hail exclusion, damage that lets water through is still covered. Read your policy, ask your agent, and get the roof inspected and photographed.
How fast can someone come out if my metal roof is leaking?
Call (737) 383-1768 and tell us water is coming in. Active leaks get scheduled as soon as we can, though safe work on a metal roof depends on the weather, since wet panels are slippery. While you wait, put a bucket under the drip, move your things, and take photos of the ceiling and where the water shows up.
Do metal roofs need maintenance?
Yes, a little. The panel maker's manual mentioned above recommends inspecting at least once a year and after high winds, hail or unusually heavy rain. On a screw-down roof, that check is mostly screws and washers. On standing seam, it's the ridge, trim, flashing and pipe boots. Keep leaves and branches off the panels, and don't let AC lines drain onto the roof.
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