Welcome to Dimensional Metals, Inc.

Span-Lock SL25

Span-Lock SL20

Inter-Lock IL20

Double-Lock DL15

Snap-On-Seam SS10

Snap-One-Seam SS15

Batten-Seam BS15

Nail-Strip NS10 & NS15

Flush-Panel FP10

V-Groove VS05

Curved-Radius CR

Tapered Seam (TS) &
Compound Curve (CC)

Wall Panels (WP)

Horizontal Wall Panel HWP16

Miscellaneous Panel Details

DOUBLE-LOCK DL15

Details | Specifications | Submittal
DL15

PRODUCT: DOUBLE-LOCK DL15 is a structural panel which is mechanically seamed during installation. The product is an integral interlocking system by design meaning the panels install in one direction from a given starting point. A DL15DM (double-male) starter panel is available (for a minimal set-up fee) and may be installed in the middle of a roof area to achieve a symmetrical layout. DOUBLE-LOCK utilizes the traditional SMACNA standing seam "double-lock" plate. Optional panel joint designs provide a wide range of overall building aesthetics. DOUBLE-LOCK is a very flexible panel design which works well with a wide range of building designs.

PRODUCT USES AND APPLICATIONS: Product uses include low to high slope roofing, vertical fascia, equipment screens, mansards, and wall panels. This system may also be installed on tapered and curved roof areas.

ROOF ASSEMBLIES: DOUBLE-LOCK DL15 can be applied over various roof assemblies including: open framing, rigid insulation (utilizing a bearing plate under each panel clip spaced 30" o.c., max.) over 22 ga. corrugated steel deck, and various solid substrates including plywood sheathing, nail base insulation, or steel deck.

ADVANTAGES:

UL-90 classified assemblies: high wind uplift loading capacities
ASTM Air, Water Infiltration and Structural Tested: proven air and water tightness
Optional Factory Applied Non-Curing Sealant: superior watertightness
SMACNA Seam Design: a traditional and historical aesthetic appearance
Mechanically Seamed: may be installed on low slope applications
Expansion Clips: allows for thermal expansion and contraction
Continuous Rollformed Lengths: eliminates need for panel lap joints.

STANDARD PRODUCT OFFERING
24 ga., 22 ga. Steel, and .032 Aluminum:

MODEL NO.		SEAM ON-CENTER
DL1512 DL1517 DL1520		12" 17" 20"

16 oz. and 20 oz. Copper:

MODEL NO.		SEAM ON-CENTER
DL1514 DL1520		14" 20"

Custom panel widths are available. Consult DMI for associated costs and lead times.

SINGLE-LOCK (designated SL instead of DL) model numbers are similar to those stated above.

SINGLE-LOCK BATTEN (designated SLB instead of SL) model numbers are similar to those stated above.

NOTE: Continuous lengths from 4’-0” (min.) up to 90'-0" (max.) is standard. Lengths over 53’ require additional crating fees and special hauling permits. Contact DMI for details.

Roof slopes under 3:12 require the use of hydro-static details. See DMI technical binder for more information.

22 ga. Steel is not stocked in all colors. Minimum order quantities and extended lead times may accompany panel orders when utilizing these substrates. 22 Ga. cannot be double-locked.

Oil-canning, the slight waviness inherent with light gauge metal, does not affect the finish or structural integrity of the panel and is therefore not cause for rejection.

All DOUBLE-LOCK products are striated standard. See front for other optional stiffener patterns.

Double Male panels are not recommended with metallic finishes due to the paint finish being directional and may cause color variation or shading.