What it is
Most standing seam is an architectural panel. It looks right and it sheds water, but it needs solid decking underneath to carry the load. Ultradeck is a structural panel. The trapezoidal rib is deep enough and stiff enough to carry itself between purlins, which means on a pole building, a warehouse or an ag structure you can skip the deck entirely.
The seam is mechanically field seamed rather than snapped together, so it closes tighter than a snap-lock and holds up better on long runs and low slopes. Inside the seam is an anti-capillary leg, a small return that stops water wicking back up under the panel by surface tension. On a low pitch roof that detail is the whole ballgame.
We roll it on our own equipment in Goshen, cut to the length of your building.
Specification
- Profile2.5 inch trapezoidal rib
- SeamMechanically seamed in the field
- FastenerConcealed clip, nothing through the panel
- Coverage14 to 24 inches, set to your building
- GaugeDown to 22 gauge steel
- DetailAnti-capillary leg in the seam
- DeckingNot required. Spans open purlins
- FinishSherwin-Williams Weather XL SMP (Kynar 500 on 24g upgrade)
- Paint warranty40 years, manufacturer
- Best forWarehouses, pole buildings, ag structures, low slope commercial

When this is the right panel
Your building has purlins and no deck. Pole buildings, machine sheds, warehouses and most ag structures are framed this way. An architectural panel would mean sheeting the whole roof first. Ultradeck goes straight on the framing.
The roof is low slope. A mechanically seamed trapezoidal rib with an anti-capillary leg handles shallow pitches that a snap-lock panel has no business on.
The runs are long. Big simple planes are exactly where this panel is cheapest per square and fastest to install, because there is very little cutting and almost no penetration.
When it is not
A house. The rib is tall and industrial looking. On a residential roof you want Masterlok 100 or 150, which read cleaner from the street.
A cut up roof. Lots of valleys, hips and dormers means lots of custom trim, and the economics stop making sense.
A tight budget on a simple building. If you do not need the structural span, Masterrib at $4.50 a square foot installed will do the job for less.
The rest of what we run
Masterlok Lifetime 100
Our most popular low-profile standing seam panel. Fasteners hide under the seam so nothing penetrates the weather surface. Available with or without striations.
See the panel →Standing seam · low slopeMasterlok Lifetime 175
The taller Masterlok profile. Does not require a solid substrate, which makes it the right answer on low slopes and open framing.
See the panel →Exposed fastener · best valueMasterrib Lifetime Panel
The budget-friendly option and the one behind our starting price. Screws through the panel face, fastest to install, best value per square on large simple planes.
See the panel →Stamped metal shingleMetal Shingles
Stamped steel shingles that read like slate or shake from the street. The right answer for historic homes, HOA neighborhoods and roofs where the plane needs to look traditional.
See the panel →Steel sidingBattenlok Siding
Steel siding that transforms the look of a house and adds real insulating value. Resists warping, cracking and fading, and pairs with any roof panel we run.
See the panel →Commercial · economicalPBR Commercial
Our economical commercial option. Wide coverage, exposed fastener, built for shops, warehouses and agricultural buildings where square footage rules the budget.
See the panel →Textured finishStone Coated Steel
Steel panels finished with a bonded stone granule surface. The texture of a traditional roof over a steel substrate.
See the panel →New build and retrofitBarndominium Roofing
Post frame homes and shop-houses, whether we are roofing a new build or replacing what went on the first time.
See the panel →