Premium Standing Seam. Hidden Fasteners. Local Fabrication.
Two standing seam profiles — Snap Lock with Striations and Nail Flange — custom-fabricated at our Westfield, MA shop. 24 ga Grade 50 Galvalume, Kynar paint, and a clean finish that holds up for decades.
No obligation. We respond same business day.
Why Standing Seam?
It's not just about aesthetics. The hidden-fastener design changes how the roof handles weather, movement, and long-term wear.
Clean, Modern Look
No exposed fasteners on the finished surface. The seams run vertically and the clips stay hidden beneath the panel.
Superior Weather Resistance
Standing seams shed water and handle thermal movement better than exposed-fastener profiles. No EPDM washer to fail.
Kynar Paint System
Standing seam uses Kynar paint — a more flexible formulation designed for the tighter bends of these profiles. Separate warranty from WeatherXL.
Long-Run Capability
Snap Lock handles panel runs beyond 16 ft without the issues exposed-fastener profiles can have on long spans.
Two Profiles — Both Hidden Fastener
Snap Lock with Striations
The full hidden-clip system. Best for long runs, high-end residential, and commercial projects.
- ✓24 gauge Grade 50 Galvalume — the ductility standing seam requires
- ✓Concealed hidden-clip fastener system
- ✓Always manufactured with striations (no non-striated option)
- ✓16" coverage per panel (1 lf = 1.33 sq ft)
- ✓Substructure: 1/2" or 5/8" plywood (recommended), or 16" OC purlins
- ✓Kynar paint system — flexible enough to move with the panel
- ✓Red Dot Galvalume warranty + Kynar paint warranty
- ✓Ideal for long panel runs over 16 ft
Standing Seam with Nail Flange
The contractor-friendly standing seam. Exposed flange, hidden-fastener appearance, faster installation on shorter panels.
- ✓24 gauge Grade 50 Galvalume
- ✓Exposed nail flange — faster for experienced installers
- ✓Hidden-fastener look from the exterior
- ✓16" coverage per panel (1 lf = 1.33 sq ft)
- ✓Maximum panel length: 16 ft
- ✓Kynar paint system
- ✓Red Dot Galvalume warranty + Kynar paint warranty
- ✓Common on residential projects and retrofit applications
Side-by-Side Comparison
| Feature | Snap Lock with Striations | Nail Flange |
|---|---|---|
| Gauge | 24 ga | 24 ga |
| Steel grade | Grade 50 Galvalume | Grade 50 Galvalume |
| Coverage width | 16" per panel | 16" per panel |
| Max panel length | Unlimited (long runs) | 16 ft maximum |
| Fastener type | Hidden clip (concealed) | Exposed nail flange |
| Substructure | Plywood or 16" OC purlins | Plywood (recommended) |
| Paint | Kynar | Kynar |
| Warranty | Red Dot + Kynar | Red Dot + Kynar |
Not sure which profile is right for your project? Tell us about it in the quote form — we'll help you decide.
Part of Hometown Structures — Top 4% Massachusetts Licensed Contractor
25+ years of construction experience. Standing seam has unique installation requirements — we can help you understand what your project actually needs before you order.
Get Your Standing Seam Quote
Tell us your project details — Snap Lock or Nail Flange, panel lengths, quantities, and color. We'll get back to you the same business day.