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Owens Corning Flashing Replacement: The West Palm Beach Owner’s Guide
If your Owens Corning roof flashing has failed, you’re looking at an installed replacement cost between $350 and $900 in West Palm Beach, depending on how much flashing needs to come out and what’s behind it. We stock Owens Corning-compatible flashing on our trucks and can typically get the job done in one visit, often the same day we take your call. Most homeowners discover flashing problems the hard way: a water stain on the ceiling after a hard Florida downpour, or granules collecting at the bottom of a downspout near a wall or chimney. The flashing itself rarely fails dramatically. It fails quietly, over years of salt air, UV exposure, and thermal expansion, until one afternoon the rain finds the gap.

We’re an independent roofing contractor in West Palm Beach, not affiliated with Owens Corning itself, but we work with their flashing and accessory lines regularly. Erik Lindgren has been looking at failed flashing along the Florida coast for nearly three decades, and he’ll tell you the same thing every time: the flashing is almost never the first thing to rot. It’s what the flashing was supposed to protect that tells you the real story.
Which Owens Corning Models This Applies To
Owens Corning doesn’t sell flashing under a single series name the way they do shingles like Duration or Oakridge. Their flashing products come through the Owens Corning Roofing Accessories line, which includes step flashing, counter flashing, valley flashing, and pipe boots designed to integrate with their shingle systems. The compatibility question is less about the shingle model and more about the flashing profile and material gauge. A standard OC step flashing for a Duration or Oakridge roof measures 4 inches by 4 inches by 4 inches with a 7-inch wall leg, but older West Palm Beach homes frequently have 3-inch or 5-inch flashings from original construction that no longer match what’s on the rack at a supply house. That’s the gotcha we see weekly: a homeowner buys what looks like an identical piece, and the bend profile doesn’t seat against the old flashing course. We match by measurement, not by brand label on the box, because a 4×4×4 aluminum step flashing seats the same whether the shingle above it is Duration or an older Prominence line.
For OEM versus aftermarket: Owens Corning-branded flashing is quality material, but the aftermarket aluminum and copper equivalents from manufacturers like Berger or Wrisco often match or exceed the gauge for less money. What matters more is the metal thickness, the alloy, and whether the material is compatible with West Palm Beach’s salt air. We specify at least .019-gauge aluminum for standard step flashing, and we push heavier gauge or copper anywhere within a mile of the Intracoastal, where airborne salt turns thin aluminum into lace in about eight to ten years.
Styles & brands we work with






Signs Your Owens Corning Flashing Replacement Is Failing
The following symptoms are what we hear most often from West Palm Beach homeowners, and what each one usually means:
- Water staining on ceilings near exterior walls or chimneys. This is the classic step-flashing failure symptom. The stain appears after a wind-driven rain because water is traveling behind the flashing, not over it. The flashing has either separated from the wall due to movement or was never properly interleaved with the shingle courses.
- Granules collecting at the base of a wall or chimney. When flashing lifts, the shingle edges beneath it start wearing faster. The granules you’re seeing are the shingle losing its armor at the transition point where the flashing should be holding everything tight.
- Visible daylight or gaps where the roof meets a wall, dormer, or skylight. If you can see a gap from the ground, water already sees it. Flashing caulk and sealant fails in West Palm Beach’s UV environment in about two to three years, and once the sealant is gone, the metal is next.
- Rust or corrosion on flashing edges, especially near the coast. Thin galvanized flashing in salt air rusts from the edges inward. By the time you can see rust blooms from the ground, the flashing has lost most of its structural integrity and is actively shedding water into the roof system.
- Loose or lifted flashing sections after a storm. Florida’s afternoon thunderstorms and the occasional tropical system will find any flashing that wasn’t mechanically fastened properly. Flashing should never rely on sealant alone. If it’s flapping or visibly lifted, the fasteners have failed or were never installed correctly.
Replacement Cost & What’s Included
In West Palm Beach, most flashing replacement jobs fall into a few predictable buckets. A single pipe boot or vent flashing replacement runs $250 to $400 installed. A 10-foot run of step flashing along a wall or chimney costs $350 to $600, depending on how many courses need to be lifted and re-set. A full chimney flashing rebuild with counter flashing and new pan flashing runs $700 to $900, and valley flashing replacement lands in the $500 to $800 range. These are installed prices, not parts-only numbers, and they include removing the old flashing, inspecting the underlayment beneath it, replacing any rotted decking if we find it, and installing the new flashing with proper interleaving and mechanical fasteners.
You’ll see your exact number in writing before any work starts. That’s how Erik runs every job at Birchbark Roofing West Palm Beach: The price I hand you before we start is the price on your final invoice, that’s just how we work. If we find rotted decking beneath the old flashing, we’ll show you a picture of it before we touch another nail, and we’ll discuss the added cost right there on the spot. The flashing work itself is covered by our 365-Day Done Right Promise: if it leaks, we come back and make it right.

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AfterDIY or Call Us?
Here’s the honest split. You can safely inspect your flashing from the ground with binoculars, and you can check your attic for water stains after a rain. What you should not do is climb onto a West Palm Beach roof in July to attempt a flashing replacement yourself. The roof surface temperature up there runs 140 degrees or higher in summer, and the work requires lifting shingle courses, cutting metal, and re-seating everything so it sheds water correctly. One misaligned course and you’ve turned a $400 flashing repair into a $4,000 interior renovation. Flashing work itself isn’t high-tension like a garage spring, but it’s higher-consequence than it looks. One wrong bend, one missed fastener, and the next tropical storm finds your ceiling.
What you can do is call us. We’ll send a background-checked, uniformed technician to your home in West Palm Beach, we’ll inspect the flashing at no charge, and we’ll hand you a written price before any work begins. Shoe covers at the door, drop cloths through the hallway, and a photo of the completed clean-up before we leave. If you’d rather have your own roofer handle it, that’s fine too. But if you want it done once and done right, call (728) 220-0842.
FAQs
Properly installed aluminum flashing in West Palm Beach typically lasts 20 to 30 years, but coastal homes within a mile of the Intracoastal or the ocean should expect 10 to 15 years from standard gauge aluminum due to salt corrosion. Copper flashing lasts 50 years or more in the same environment. The shingles around the flashing often need replacement first, which is why many homeowners replace flashing proactively when they re-roof rather than waiting for a failure. Call (728) 220-0842 if you’d like us to check your flashing during an inspection.
Yes, in limited cases. A re-seal with high-quality polyurethane sealant can buy you one to two years if the metal itself is still sound and the issue is solely sealant degradation. But once flashing is rusted, lifted, or the interleaving with shingles has separated, sealing won’t hold in West Palm Beach’s heat and rain. Replacement is the honest fix. Call (728) 220-0842 and we’ll tell you which situation you have, with pictures, before you spend a dollar.
Most flashing replacement work in West Palm Beach takes between two and four hours on site. A single pipe boot is done in under an hour. A full chimney rebuild with counter flashing can stretch to a half day if we’re replacing rotted decking beneath the flashing. Your written quote will include a time estimate so you know what to expect before the crew arrives.
We stock Owens Corning-compatible flashing profiles, including 4×4×4 step flashing in aluminum and copper, pipe boots, valley flashing, and counter flashing on our trucks in West Palm Beach. We also carry flashing that matches GAF and CertainTeed systems, so if your roof has a mix of brands from previous repairs, we can match what’s there without special-ordering anything. That’s why we can usually complete the job on the first visit.
Call Birchbark Roofing West Palm Beach for Flashing Replacement
If your Owens Corning flashing has done its time and the Florida rain is testing its patience, we’re a phone call away. Erik Lindgren and the crew at Birchbark Roofing West Palm Beach will inspect your flashing, hand you a written price in dollars before anything starts, and treat your home like it’s our own: shoe covers on, drop cloths down, debris photographed and gone before we leave. A live person answers at (728) 220-0842, day or night. Call for your free estimate, and you’ll know exactly what the job costs before we pick up a tool.
Written by Erik Lindgren, Owner, Birchbark Roofing West Palm Beach at Birchbark Roofing West Palm Beach, serving West Palm Beach and nearby areas.