1.5" mechanically seamed
Field-seamed 180° double lock. The specification for low-slope commercial runs, long panel lengths and high wind exposure.
- 24 ga steel / .032 aluminum
- Slope from 1/2:12
- UL 580 Class 90 uplift
Commercial Metal Systems
Standing seam built for a 50-year service life
24-gauge structural steel and aluminum standing seam with concealed fastener clips, factory Kynar 500 finishes and engineered snow retention — specified for Connecticut wind, ice and thermal movement.
- Concealed fastener
- Kynar 500 / Hylar 5000
- Engineered snow retention
- Structural steel standard
- 24 gaStructural steel standard
- Finish warranty
- 30–35 yrFinish warranty
- Expected lifecycle
- 50+ yrExpected lifecycle
- FM uplift assemblies
- 1-90FM uplift assemblies
Panel profiles
Gauge and seam options
2" mechanically seamed
Taller rib for greater water-carrying capacity and structural spanning over open purlins on warehouse and municipal buildings.
- 24 ga / 22 ga steel
- Long-span capable
- FM 1-90+ assemblies
1.5" snap-lock
Concealed clip snap-together panel for architectural steep-slope elevations, canopies and entry features. No exposed fasteners anywhere in the field.
- 24 ga steel
- Slope from 3:12
- Fast architectural install
Finish & metallurgy
What actually determines lifespan
Step 1
Substrate
Galvalume-coated structural steel for most buildings; .032 and .040 aluminum where salt air along the shoreline would attack steel at cut edges.
Step 2
Coating
70% PVDF resin finishes — Kynar 500 or Hylar 5000 — carry 30 to 35 year written warranties against chalk, fade and film integrity. Silicone-modified polyester costs less and fades sooner; we quote it only when asked.
Step 3
Attachment
Floating concealed clips let panels expand and contract through a 120°F Connecticut swing. Face-fastened panels cannot, which is why their washers leak by year twelve.
Connecticut detail
Snow retention is engineering, not an accessory
A metal roof sheds an entire winter's snow load in one release. Over an entrance, a loading dock, a walkway or a parked fleet, that is a liability event.
We calculate ground snow load by town, panel slope and rafter length, then lay out clamp-on bar systems sized to that load — clamped to the seam, never drilled through the panel, so the finish warranty stays intact.
Every proposal includes the retention calculation, the row layout drawing and the clamp manufacturer's load data for your records.
Snow guard layout
Clamp-on bars sized per town snow load, with drawings issued before install.
Thermal movement
Panel lengths, clip type and expansion allowance detailed in the submittal.
Portfolio
Metal projects across Connecticut
Municipal facility, Middlesex County
38,000 sq ft of 2" mechanically seamed 24 ga steel in matte bronze over a rebuilt purlin deck, phased around the building staying open.
Distribution center, Hartford County
Standing seam re-roof with two-row clamp-on snow retention above every dock door and man-door.
Shoreline institutional campus
.032 aluminum panels selected for salt exposure, Kynar 500 finish, 35-year finish warranty registered.
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