Aluminum vs Steel Metal Roof in Delray Beach, FL
At Atlantic Avenue, Delray Beach's barrier island is inside the 2,800-foot surf limit in Drexel's Galvalume warranty, so aluminum is the call; steel inland.
Measure from the house to the surf. At Atlantic Avenue the barrier island is about 1,700 feet wide, inside the 2,800-foot surf limit in Drexel's Galvalume warranty, and the blocks nearest the beach are inside Sheffield's 1,500-foot limit too. There, aluminum is the usual call. West of the Intracoastal, steel keeps its warranty and costs less.
Delray Beach puts both answers inside one city: oceanfront homes on a narrow barrier island and inland neighborhoods miles from salt spray. This guide covers the material decision for a Delray address. For permits, neighborhoods and estimates across the city, see metal roof installation in Delray Beach.
What makes a Delray Beach metal roof different?
| Fact | Detail | Source |
|---|---|---|
| Barrier island width at Atlantic Avenue | About 1,700 feet due east from Veterans Park on the Intracoastal to the A1A beachfront at the Sandoway Discovery Center | OpenStreetMap coordinates, read Oct 16, 2026 |
| City Hall to the beach | About 1.7 miles from Delray Beach City Hall to Atlantic Dunes Park on A1A | OpenStreetMap coordinates, read Oct 16, 2026 |
| Design wind speed | City Hall sits between the 160 and 170 mph Risk Category II contours, about 168 mph by straight-line interpolation; the 170 mph line runs along the beach | FBC 2023 Figure 1609.3(1) wind contours (FGDL map layer) |
| Re-roof permit timing | Re-roof permits are express permits; most are issued within three business days when every document is uploaded up front | City of Delray Beach, Re-Roof of Existing Structure |
| Roof mitigation threshold | A Roof Mitigation Form and proof of value are required when the home was built before March 2002 and the improvement value is over $300,000 | City of Delray Beach, Re-Roof of Existing Structure |
| Re-nailing affidavits and uplift tests | Uploaded to the matching inspection in eServices; the City says these are not field inspections | City of Delray Beach, Re-Roof of Existing Structure |
| Product approval upload | For a state (DBPR) approval, the cover page and the applicable installation instructions go up as one document | City of Delray Beach, Re-Roof of Existing Structure |
How close to the ocean is too close for a steel roof in Delray Beach?
The limit comes from the warranty, and it differs by manufacturer. Drexel Metals excludes acrylic-coated Galvalume within 2,800 feet of a coastline with surf; Sheffield Metals excludes its Galvalume within 1,500 feet. Because the island at Atlantic Avenue is about 1,700 feet from the Intracoastal to the beachfront, every home east of the bridge there is inside Drexel's limit, and the eastern blocks are inside Sheffield's. City Hall, about 1.7 miles from the beach, is outside every limit we read, and so is the rest of the city to its west.
| Aluminum | Galvalume steel | |
|---|---|---|
| Where it fits in Delray | Barrier island and waterfront homes | West of the Intracoastal, outside the warranty limits |
| Coastal warranty terms | Englert's prepainted aluminum warranty applies within half a mile of salt water, with a yearly fresh-water rinse and records | Excluded within 1,500 ft (Sheffield) to 2,800 ft (Drexel) of breaking surf |
| Thickness in Florida approvals | 0.032 inch minimum (FL 36904-R10) | 24 gauge for standing seam, 26 gauge for 5V (FL 36904-R10) |
| Uplift, 1-inch nailstrip, same approval | 110 psf | 142.5 psf |
| Price | Costs more than steel; we have not published the premium yet | The ranges in our Boca Raton cost guide |
What does a metal roof cost per foot in Delray Beach?
Our Boca Raton cost guide, which covers the same Palm Beach County market, puts installed metal roofing at $6 to $18 per square foot: $6 to $9 for 5V crimp and other exposed-fastener panels, $10 to $18 for standing seam. An aluminum panel for a barrier-island home lands above the steel price for the same profile, and we will publish that premium once our installers confirm it. The number for your house comes from measuring the roof.
What does Delray Beach need for a metal re-roof permit?
The City's re-roof page lists a scope of work with a cost breakdown (per Florida Building Code section 109.3), the product approval (Miami-Dade NOA or Florida approval), a Notice of Commencement, association approval where a condo or HOA applies, and the roof mitigation form for pre-March-2002 homes valued over $300,000. Truss straps, moving air conditioning units and removing solar panels each need a sub-permit tied to the main permit number.
Inspections
Inspections are requested in eServices. The re-nailing affidavit and any roof uplift test are uploaded to their inspection rather than inspected in the field, so have the photos and test report ready before the roofer leaves.
What wind speed is a Delray Beach roof designed for?
On the Florida Building Code's Risk Category II map, the 170 mph contour runs along Delray's beach and the 160 mph contour runs about 16 miles west of City Hall. City Hall works out to about 168 mph between them. The engineer's number for your parcel is the one on the permit, and the panel's approved uplift has to meet the design pressure that speed produces for your roof.
Frequently asked questions
Does a home on the Intracoastal in Delray Beach need aluminum?
Check the warranty first. Drexel excludes Galvalume within 1,200 feet of a large bay and 600 feet of marshes and canals, and Sheffield within 800 feet of a large bay and 400 feet of marsh. None of them names the Intracoastal Waterway, so get the manufacturer's answer in writing before you choose steel for a waterfront home.
Is a 5V crimp steel roof a bad idea near the beach in Delray?
Its exposed screws and washers are the parts salt air works on first, and the Galvalume warranties we read do not cover steel panels inside their surf limits. On the barrier island, concealed-fastener aluminum is the usual specification.
Does Delray Beach require an HOA letter for a metal roof?
When the property is in a condo or HOA, the City lists association approval among the re-roof documents.
The warranty distances for every metal are compared in aluminum vs Galvalume near the ocean.
