Boral Flashing Replacement in Chicago, IL

Boral Flashing Replacement: The Chicago Owner’s Guide

We stock and install Boral-compatible flashing replacement for Chicago homeowners, with typical installed pricing running $340-$780 depending on linear footage, roof pitch, and whether surrounding membrane or underlayment needs attention. Most Boral flashing jobs we complete same-day or next-day, and our trucks carry the common profiles used on Boral tile and composite systems installed across the metro area over the past two decades. You’ll usually discover the failure after a hard rain, when water shows up at the ceiling edge near a chimney, dormer, or wall intersection - the places where Boral’s interlocking design depends on flashing to bridge the gap between materials.

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Which Boral Models This Applies To

Boral flashing isn’t one-size-fits-all. The profile changes significantly between their concrete tile lines (Villa, Saxony, Slate), their lightweight composite offerings, and the older Eagle Roofing products that Boral acquired and rebranded in the mid-2010s. If your home was built between 1998 and 2016, there’s a fair chance you’ve got Eagle-labeled flashing that needs Boral-compatible replacement now.

We identify the right part three ways: the stamped code on the existing flashing’s exposed leg (usually found on the drip edge or counter-flanging), the tile profile measurement at the lock point (Boral concrete tiles typically run 17″ to 18″ exposure lengths), and the slope of your roof plane. Boral’s high-profile tile requires a deeper pan flashing than their flat slate-look products. For the OEM-versus-aftermarket question, we generally recommend Boral-manufactured flashing on active tile lines because the lock geometry is proprietary. On discontinued Eagle profiles, we source matching-gauge aluminum or copper from a Chicago metals shop we’ve worked with since the nineties. The aftermarket route saves 20-30% on material, but only if the bend angles and hem dimensions match exactly. A misfit here doesn’t show itself until the first freeze-thaw cycle.

Signs Your Boral Flashing Replacement Is Failing

• Water staining at ceiling corners or wall joints. Boral tile systems shed water aggressively, but that water has to go somewhere. When the step flashing at a wall intersection corrodes through or pulls away, water follows the path of least resistance straight into your top plate. In Chicago, we see this most often on north-facing elevations where ice damming lingers into March.
• Visible rust or white oxidation on exposed metal. Boral’s standard flashing is painted galvanized steel, which holds up well until the paint film cracks at the bends. Once that happens, Chicago’s salt-laden meltwater accelerates corrosion from the edge inward. White powdery residue means the zinc layer is already compromised.
• Tile slippage near valleys or penetrations. The flashing pan is what holds the bottom course of Boral tiles in proper alignment. When the pan deforms or the fastening flange rots out, tiles settle backward and open a channel for wind-driven rain. We caught this exact pattern on a two-flat in Beverly last spring.
• Musty odor in attic space after rain. Slow leaks through compromised flashing rarely show immediately on drywall. They soak the rafter bays first. If your attic smells like wet cardboard after every storm, trace the rafter line uphill to the nearest penetration. The flashing seal is the likely culprit.
• Daylight visible from attic at chimney or vent base. This is past the point of warning. The flashing has separated from the masonry or curb, and you’re one heavy rain from active interior damage. We treat these calls as same-day priority.

Replacement Cost & What’s Included

What drives the range: accessibility (steep pitches or tight alley-side setups in Chicago’s bungalow belt take longer), whether we need to remove and reset Boral tiles (each tile interlocks, so a localized repair becomes a small puzzle), and the condition of the underlying ice-and-water shield. Our quote includes removal of failed flashing, substrate inspection, new Boral-compatible material, resealing at all termination points, and tile reset with matching fasteners. The 90-Day Done Right Promise covers the workmanship in full. If water finds a path we missed, we come back and make it right - no paperwork, no arguing.

DIY or Call Us?

There’s a safe middle ground here, and then there’s the point where a homeowner should step back. You can check: walk the perimeter after rain and note where water is exiting (or not exiting) the gutters; look up from the ground with binoculars for obvious metal deformation or missing tiles; and sniff your attic after the next storm. What you should not do is climb a Boral tile roof without proper hook ladders and weight distribution boards. These tiles crack under point loading, and a cracked tile is a new leak waiting to happen.

Flashing replacement on a Boral system requires removing interlocking tiles in the correct sequence, working around the proprietary lock geometry, and resealing in a way that accounts for thermal movement across Chicago’s 80-degree seasonal swings. Get the pan depth wrong by a quarter inch and the tile course above won’t seat. We’re not saying this to drum up business. Pete Callahan’s seen enough well-meaning repairs turn into full rebuilds to know where the line sits. If you’re comfortable on a ladder and want to verify the problem, that’s smart. If you’re considering peeling back courses yourself, call us first at (855) 641-3418. We’ll give you an honest read on whether it’s a one-hour fix or a six-hour job, no charge for the assessment.

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