24-gauge Galvalume. Mechanically locked. Fifty years.
Architectural standing-seam metal — snap-lock or field-seamed — fabricated on-site for continuous panels with zero exposed fasteners. The same finish spec'd on stadiums and skyscrapers.
Four profiles. Roll-formed on site.
Panels are fabricated on our portable roll-former at the property — eliminating horizontal seams on runs under 50 ft.
1.5″ Snap-Lock Standing Seam
Concealed-clip snap engagement. Ideal for residential pitches 3:12 and above.
- Panel
- 16″ width · 24-ga
- Finish
- Kynar 500® PVDF
- Hand-engaged snap lock — no field seamer required
- Concealed 316 stainless clip at 24″ o.c.
- Roll-formed on-site to exact eave-to-ridge length
- 28 Kynar colors with 50-yr finish warranty
Kynar 500® PVDF. Twenty-eight stock colors. Unlimited custom.
30-year non-prorated chalk-and-fade warranty. The same pigment chemistry used on Petronas Towers and Allegiant Stadium.
Eight layers. Zero exposed fasteners.
Deck
5/8″ APA-rated sheathing inspected; gypsum or polyiso recover board on commercial decks.
High-temp underlayment
Self-adhered, 240°F-rated synthetic. Full coverage, six-nail pattern through clips only.
Ice & water
Self-adhered membrane at eaves, valleys, sidewalls, penetrations, and ridge.
Clips
316 stainless concealed clips at 24″ o.c. Fixed at panel center, floating at ends for thermal cycling.
Panels
On-site roll-formed to exact eave-to-ridge length. Zero horizontal seams on runs under 50 ft.
Seam closure
Snap-lock engaged by hand; mechanical 90° or 180° seam closed with electric seamer. Probe-tested.
Flashings
Custom-bent at our brake to a 1/32″ tolerance. Color-matched to panel. Pre-formed pipe boots in EPDM or silicone.
Final
Touch-up paint applied at all field cuts. Magnetic sweep. Drone flyover. Warranty registered with manufacturer.
One install. Three asphalt cycles.
| Standing seam | Architectural shingle | |
|---|---|---|
| Lifespan | 50–75 yr | 20–30 yr |
| Finish warranty | 30–50 yr | 10 yr (algae) |
| Wind rating | 140 mph | 130 mph |
| Fire class | A | A |
| Impact class | 4 (hail) | 3–4 (rated lines) |
| Summer attic load | −40% | Baseline |
| Initial cost (tier) | $$$ | $$ |
| Replacements in 60 yr | 0–1 | 2–3 |
Highland Park. 8,200 sq ft. Twenty-one days.
- Panel
- 2″ Mech-seam Galvalume
- Color
- Charcoal Gray
- Crew days
- 21
- Warranty
- 50 yr finish
Twenty-one days. Inspection to flyover.
Three warranties. Stacked.
- 50-yr Kynar 500® finish (chalk & fade)
- Lifetime structural panel warranty
- Lifetime Quality Roofing workmanship
- Manufacturer-registered to property
- Transferable in full to next owner
Manufacturer warranty co-signed by McElroy, Drexel, or Englert — whichever line you select.
Standing seam, plainly.
Standing-seam, copper, and coastal aluminum.
Mech-lock Galvalume, snap-lock, soldered copper, marine-grade aluminum — each panel system has its own option page with full specs.
