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PGT Roofing: The Miami Owner’s Guide
PGT-compatible roofing repair in Miami typically runs $470-$2,125 installed, and we stock common PGT flashing kits, membrane sections, and ridge vent components for same-day replacement on most residential models. Most Miami homeowners discover a PGT roofing failure after a hard rain, when water stains appear on the ceiling below a skylight or patio enclosure, or when they notice the silicone sealant bead along a PGT window-to-roof transition has dried to gray dust after three or four years of UV exposure.
Which PGT Models This Applies To
PGT builds three product families that tie into roofing assemblies: WinGuard aluminum and vinyl impact windows, Eze-Breeze porch enclosures, and SolarFlex sliding glass systems. The critical compatibility point is the extrusion profile, the shaped aluminum channel where the window frame meets the roof deck. WinGuard uses a 2-inch nailing fin on most residential sizes, Eze-Breeze varies between 1.5-inch and 2.5-inch depending on whether the unit was built before or after 2019, and SolarFlex requires a proprietary saddle flashing that PGT sells only through authorized distributors.
We are an independent service provider, not affiliated with PGT. For our customers, we source OEM PGT flashing and gaskets when the extrusion profile is post-2019 or when the warranty is still active. On older units, we often recommend quality aftermarket equivalents from Johns Manville or Firestone that match the thermal expansion coefficient, the rate at which the material grows and shrinks with temperature swings. Miami’s daily 20-degree temperature swing in summer will crack a mismatched gasket in eighteen months. Check the silver PGT label in the upper right corner of the sash for the series code, WGU for WinGuard, EZB for Eze-Breeze, or SLF for SolarFlex.
Signs Your PGT Roofing Is Failing

- Water stains on drywall below a PGT unit. The butyl tape seal between the window nailing fin and the roof underlayment has degraded. In Miami, this tape hardens faster than manufacturer specs suggest because attic temperatures regularly hit 140 degrees.
- Visible gaps where the PGT frame meets the roof shingles or tile. The counter-flashing, the metal diverter that carries water over the top of the window frame, has pulled loose or corroded. Salt air accelerates this on east-facing installations.
- Condensation between the roof membrane and the PGT sill. The weep holes, small drainage channels in the aluminum frame, are clogged with debris or insect nests. Water backs up and rots the sill plate.
- Cracked or missing silicone at the roof-to-frame joint. UV exposure in Miami breaks down neutral-cure silicone in thirty to forty months, faster than the fifty-year rating on the tube. The gap allows wind-driven rain entry during tropical storms.
- Sagging or separated interior trim around the PGT unit. The structural support bracket hidden in the roof cavity has corroded or the fasteners have backed out. This is structural, not cosmetic, and the unit needs immediate support before the glass drops.
Before
AfterReplacement Cost & What’s Included
PGT roofing-related repair in Miami falls within our standard roof repair range of $470-$2,125. A straightforward gasket and silicone replacement on a single WinGuard unit runs toward the lower end. Full saddle flashing replacement on a SolarFlex system with tile roof removal and reinstallation pushes the upper bound.
| Component | Parts + Labor Range |
|---|---|
| PGT-compatible gasket replacement, one unit | $470-$825 |
| Flashing kit replacement (OEM), WinGuard | $710-$1,180 |
| SolarFlex saddle flashing with tile R&R | $1,420-$2,125 |
| Eze-Breeze membrane section, post-2019 profile | $590-$1,060 |
What drives the spread is roof type, tile or shingle or metal, and whether we need to remove interior soffit to access the support bracket. Under Clause 1 of The Haven Standard, you get a written price before any work starts, itemized by line: parts, labor, roof penetration seal, and disposal. The 365-Day Done Right Promise covers the installation. We pull permits when the repair exceeds 25 percent of the roof section, per Miami-Dade code, and pass inspection before we invoice.
DIY or Call Us?

There is one safe owner check: look at the weep holes on the exterior sill, the small slots in the aluminum frame. If they are clogged with leaves or mud, clear them with a pipe cleaner and run a garden hose at the frame, not the glass, to confirm drainage. Do not attempt to reseal the roof-to-frame joint yourself. The silicone must bond to clean aluminum and compatible underlayment, and the wrong product traps water instead of shedding it.
Do not remove tile or shingles around a PGT unit. The flashing sequence, step flashing, counter-flashing, head flashing, is specific to the roof pitch and the PGT extrusion profile. Get it wrong and you void the window warranty and create a leak path that shows up six months later. We carry OEM and aftermarket PGT-compatible flashing, gaskets, and fasteners on our trucks. Call (786) 321-4970 and we will schedule a free estimate, measure the extrusion, and give you a written price before anyone picks up a tool. Measure twice, write it down, then build it.
FAQs
Silicone seals last three to four years, gaskets seven to ten, and aluminum flashing twenty-plus if the finish is intact. The salt-air corridor from Brickell to Key Biscayne cuts silicone life by about a third. Call (786) 321-4970 for an exact quote on replacement, estimates are free.
Small corrosion spots on aluminum flashing can be treated and coated, but cracked or separated flashing gets replaced. Patched flashing fails at the seam, and in Miami’s wind-driven rain, a seam failure means interior damage. Call (786) 321-4970 for an exact quote, estimates are free.
A single WinGuard unit on a shingle roof takes three to four hours. SolarFlex on barrel tile takes a full day because of the careful tile removal and reinstallation. We bring the documented photo record standard, so you see before, during, and after. Call (786) 321-4970 to schedule.
We stock common WinGuard and Eze-Breeze gaskets, flashing kits, and fasteners. SolarFlex saddle flashing is ordered to the specific unit width, usually a two-day lead time. We will tell you exactly what we have and what we need to order before we start. Call (786) 321-4970 to confirm availability for your model.
Written by Grant Rowan, Owner, Rowan Construction Group Miami at Rowan Construction Group Miami, serving Miami and nearby areas.







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