Mesa (DM44/DM44 with InnovaCELL™ Technology)

Mesa DM44 is a wall panel from All Weather Insulated Panels (AWIP), also offered as DM44 with InnovaCELL Technology. It is an insulated metal panel with a 44-inch module for commercial, industrial and controlled-environment buildings. It belongs to the Mesa line, which also includes the 40-inch DM40.

AWIP announced the DM44 on November 2, 2022 as an addition to its wall panel line. The announcement presented the planked 44-inch profile for quotation and ordering for interior installations in controlled-environment applications, and AWIP's national sales manager for cold storage said customers drove its development.

• Module width: 44 inches (1118 mm)
• Thickness: 2, 2.5, 3, 4, 5, 6 or 8 inches
• Length: 8 feet (2.44 m) minimum to 50 feet (15.24 m) maximum
• Side lap: double tongue and groove
• Exterior profile: embossed, lightly planked, Mesa rib
• Interior profile: embossed, lightly planked, Mesa rib, with flat as an option

Both the interior and exterior steel profiles carry vertical embossing. The panel is a single component wall with a thermal barrier and washable surfaces.

The exterior face skin is 26 gauge G90 or AZ50 steel, with 24 and 22 gauge as options. The DM44 interior skin is 26 gauge G90 or AZ50 steel, with 24 and 22 gauge as options, or 26 gauge 304 2B stainless steel.

Standard colors are Regal White, Surrey Beige and Sandstone. Any other color requires a minimum of 15,000 square feet. Imperial White polyester and stainless steel were the finishes named when the panel launched.

The nominal R-value of the DM44 is 8 per inch at 75°F mean temperature and 8.5 per inch at 35°F mean temperature, by ASTM C518. U-values are tested by ASTM C1363 at 2, 4, 6 and 8 inch thicknesses, and values for other thicknesses are interpolated.

• 2 inches: R-16 and U-0.068 at 75°F mean; R-17 and U-0.063 at 35°F mean
• 2.5 inches: R-20 and U-0.054 at 75°F mean; R-21.25 and U-0.050 at 35°F mean
• 3 inches: R-24 and U-0.046 at 75°F mean; R-25.5 and U-0.042 at 35°F mean
• 4 inches: R-32 and U-0.035 at 75°F mean; R-34 and U-0.032 at 35°F mean
• 5 inches: R-40 and U-0.029 at 75°F mean; R-42.5 and U-0.026 at 35°F mean
• 6 inches: R-48 and U-0.025 at 75°F mean; R-51 and U-0.022 at 35°F mean
• 8 inches: R-64 and U-0.019 at 75°F mean; R-68 and U-0.016 at 35°F mean

• FM 4880: passed, Class 1 fire rating of building panels or interior finish material
• ASTM E84: flame spread index 25 or less, smoke developed index 450 or less
• NFPA 285: passed
• NFPA 286: passed, maximum 6 inches thick
• NFPA 268: assembly tested meets the requirements of the standard
• CAN/ULC S101 15 minute fire endurance: maximum 6 inches thick, vertical and horizontal orientations
• CAN/ULC S102: flame spread index 20 or less, smoke developed index 195 or less
• CAN/ULC S134: maximum 6 inches thick, vertical orientation
• CAN/ULC S138: maximum 6 inches thick
• ASTM E331: no uncontrolled water penetration at 20 PSF for 2 hours
• ASTM E283: air leakage under 0.01 CFM per square foot of panel area at 20 PSF

Structural performance by ASTM E72 and ASTM E1592 is published in the DM44 span tables.

The DM44 wall surface is embossed as standard. Smooth finishes may be available on request, depending on color, gauge and end use. The DM44 interior paint finish is Imperial White as standard. DM44 orders can specify multilayer coil coats made for aggressive environments instead of the standard paint, with chips on request.

• Mesa DM40: the 40-inch Mesa wall panel, named the most popular AWIP panel
• Micro-Vee MV40: an overlapping, self-aligning joint
• Striated ST40: a striated finish that adds rigidity