40–50 Year Asset Hold

Metal Roofing in Savannah, GA

Coastal Roofing of Georgia installs standing-seam commercial metal roofs, residential metal roofing, and metal roof repair across Savannah and Coastal Georgia. Our commercial standing-seam systems use 24-gauge aluminum-zinc coated steel panels with concealed clip attachment and PVDF paint finish — 40-50 year service life with no fasteners ever penetrating the panel surface. Savannah Historic Review Board-approved profiles available for downtown projects.

Metal is the premium long-life commercial roof we install on churches, hospitality buildings, historic restorations, and institutional projects where the roof aesthetic matters as much as the waterproofing. Residential metal roofing is the right call for owners who want the longest-life, lowest-maintenance roof on the market — and don't mind the upfront premium.

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Metal roofing we install in Savannah

Standing-seam commercial metal — 24-gauge aluminum-zinc coated steel, concealed clips, PVDF paint finish, 1-1/2 inch raised seam ribs, 40-50 year service life
Historic-district standing-seam — Savannah HRB-approved profiles with approved seam heights and colors, full COA process handled
Residential standing-seam — premium long-life residential metal for owners who want the longest-life roof on the market
Architectural metal panels — corrugated, ribbed, and structural profiles for industrial, agricultural, and modern commercial
Metal roof repair — panel replacement, seam re-crimping, fastener replacement, sealant renewal, gutter and flashing work
Metal-over-metal retrofit — new metal over existing aging metal without a full tear-off, using a sub-purlin framing system

Explore the standing-seam metal roof system in interactive 3D — every layer, every install step Open the 3D Model →

Standing-seam metal specs

What We Spec on Savannah Metal Roof Projects

Our standard standing-seam commercial spec — manufacturer-neutral and Coastal Georgia climate-appropriate. We adjust panel gauge, clip spacing, and seam height per project based on wind exposure, slope, and historic district requirements.

Component	Standard Spec	Coastal Georgia Note
Panel material	24-gauge aluminum-zinc coated steel	Galvanized substrate handles salt-air corrosion better than plain steel
Paint finish	PVDF (Kynar 500-class) high-performance fluoropolymer	40+ year color fastness, UV-stable in Coastal Georgia sun
Seam height	1-1/2 inch raised standing seam	Mechanically locked rib-to-rib over concealed clips
Clip attachment	Concealed clip, screwed to plywood substrate	Allows panel expansion/contraction with temperature without fastener fatigue
Underlayment	Self-adhering synthetic high-temp underlayment	Lasts the lifetime of the metal roof — replaces asphalt felt
Substrate	Half-inch plywood over polyiso insulation	Hard plane the clips fasten to; prevents foot-traffic deflection
Edge details	Pre-formed factory eave trim and ridge cap	Caps panel ends and directs runoff into gutters
Service life	40-50 years to first major intervention	Industry-longest commercial roof lifespan with PVDF finish

Why standing-seam works

What Makes Standing-Seam Different From Other Metal Roofs

Standing-seam metal is mechanically different from screw-down metal (R-panel, corrugated). The difference is the fastening — and it's the entire reason metal roofs leak or don't.

✓ No fasteners through the panel surface. Concealed clips below the raised seam grip the panel and screw into the substrate. The panel face is a continuous, unpenetrated skin. Screw-down metal puts hundreds of fasteners through the surface — every one is a future leak.
✓ Panels can expand and contract. Metal panels grow and shrink with temperature — a 40-foot panel moves about half an inch over a 100°F swing. Concealed clips let the panel slide; screws through the panel restrain it and cause oil-canning, fastener back-out, and seam separation over time.
✓ Mechanical seams, not gaskets. Adjacent panels lock at the raised rib by mechanical crimping. No rubber gasket to age out, no caulk joint to fail. The seam is as long-lived as the panel itself.
✓ PVDF paint holds color 40+ years. The PVDF (polyvinylidene fluoride) paint finish is the same fluoropolymer chemistry used on aerospace applications. UV-stable, chalk-resistant, fade-resistant. Cheaper SMP paints fade and chalk in 15 years in Coastal Georgia sun.
✓ Historic-district approved. Savannah's Historic Review Board approves specific standing-seam profiles for downtown projects. We handle the HRB and COA (Certificate of Appropriateness) process as part of the project — including approved color matches.
✓ Recyclable end-of-life. Aluminum-zinc coated steel panels are 100% recyclable at end-of-life. Many modern panels are made from 25%+ recycled content already. The greenest commercial roof on the market over a 50-year lifecycle.

When metal beats single-ply

When to Pick Metal Over TPO, PVC, or EPDM in Savannah

Metal is significantly more expensive upfront than single-ply membrane ($11–$18 per sq ft installed versus $5.50–$11 for membrane). The math only works when one of four conditions applies to your building.

40+ year asset hold horizon

If you plan to own the building 40+ years and never want to think about the roof again, metal pays for itself by avoiding one or two membrane replacements over that span. Single-ply needs replacement every 20-25 years; metal lasts 40-50.

Aesthetic priority — church, historic, hospitality

When the roof is part of the architecture — a church sanctuary, a downtown historic building, an upscale hotel — single-ply white membrane isn't appropriate. Standing-seam metal is. We do most of the church and historic-district metal work in greater Savannah.

Pitched roof slopes

Single-ply is for low-slope (under 2:12). Anything above that, metal is structurally and aesthetically the right answer. Pitched commercial buildings — gables, hipped pavilions, dormers — go metal almost every time.

Owner preference for premium long-life

Some owners simply want the longest-life, lowest-maintenance roof on the market regardless of payback math. Metal is that roof. We don't talk them out of it — we install it correctly and document it for the next 50 years.

Not sure metal is the right pick? Compare every commercial roofing system we install in interactive 3D Open the 3D Model →

Metal roof repair

Metal Roof Repair in Savannah, GA

Metal roofs don't fail uniformly — they fail at specific weak points. Real metal-roof repair in Coastal Georgia hits the same patterns over and over: pipe boots that aged out, fastener back-out on older screw-down systems, sealant failure at the ridge, seam separation from panel movement, and gutter / drip-edge corrosion from salt air.

We diagnose each of these specifically rather than blanket-replacing panels. A properly maintained 30-year-old standing-seam roof can run another 20 years with targeted repair work. A screw-down roof past 15 years is usually telling you it's time for a metal-over-metal retrofit instead of more patching.

Common Questions

How much does a metal roof cost in Savannah, GA?

Commercial standing-seam metal roofing in Savannah typically runs $11.00–$18.00 per square foot installed, depending on panel gauge, seam height, and edge detail complexity. Residential metal roofs run roughly $12–$22 per square foot installed. A typical 20,000 sq ft commercial standing-seam roof in Savannah runs $215,000–$345,000 fully installed.

How long does a metal roof last in Coastal Georgia?

A properly installed standing-seam metal roof with PVDF paint finish lasts 40-50 years in Coastal Georgia. That's the industry's longest commercial roof service life. Screw-down corrugated metal (R-panel) typically delivers 20-30 years before fastener back-out and seam separation force replacement.

Are metal roofs allowed in Savannah's Historic District?

Yes — but only specific Historic Review Board (HRB) approved profiles. The seam height, panel width, color, and finish must match HRB-approved palettes. We handle the COA (Certificate of Appropriateness) process as part of the project, including the panel-color submission and review meeting.

Can a metal roof handle hurricane-force wind in Coastal Georgia?

Yes — properly installed standing-seam metal is one of the most hurricane-resistant roof systems available. Concealed-clip systems achieve FM Global 1-90 (90 psf wind uplift) ratings or better when clip spacing matches Coastal Georgia's wind zone. We spec clip spacing for our zone, not the inland default.

What's the difference between standing-seam and screw-down metal roofing?

Standing-seam uses concealed clips below raised seam ribs — no fasteners ever penetrate the panel surface. Screw-down metal (R-panel, corrugated) uses exposed screws through the panel face. Standing-seam lasts 40-50 years; screw-down lasts 20-30 because exposed fasteners back out over time and become leak sources.

Do you install metal roofs over existing metal?

Yes — a metal-over-metal retrofit is often the right call for an aging screw-down metal roof. We install a sub-purlin framing system over the existing panels and screw new standing-seam to the purlins. Avoids tear-off cost and gives you the 40-50 year life of a new standing-seam roof.

Will my metal roof fade in the Savannah sun?

Not with a PVDF paint finish. PVDF (polyvinylidene fluoride) is the same fluoropolymer chemistry used on aerospace applications — UV-stable, chalk-resistant, fade-resistant. 40+ year color fastness in Coastal Georgia. Cheaper SMP paint finishes fade noticeably in 12-15 years here.

Are you a licensed metal roof installer in Savannah?

Yes — Coastal Roofing of Georgia is licensed in Georgia and South Carolina for commercial and residential metal roofing. We hold manufacturer certifications for the standing-seam systems we install and handle all permits, HRB approvals, and inspections required by City of Savannah or Chatham County code.

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