HR Series (HR3/HR3 with InnovaCELL™ Technology)

HR3 is a High Rib Roof Panel in the AWIP HR Series, also offered as HR3 with InnovaCELL Technology. It is an exposed-fastener insulated metal panel roof used on retrofit and new construction. The roof is a single component that includes the exterior face, a weather barrier, insulation and a vapor barrier.

The HR3 has a 40-inch module and sits beside the HR5 in the series. The HR3-W is its wall version.

• Module width: 40 inches (1016 mm)
• Thickness: 1.5, 2.5, 3, 4, 5 or 6 inches
• Length: 8 feet (2.44 m) minimum to 50 feet (15.24 m) maximum
• Exterior profile: trapezoid
• Interior profile: embossed, lightly planked, Mesa rib
• Side laps: trapezoidal overlap on the exterior, shiplap on the interior
• Minimum slope: 1:12

The core is polyisocyanurate (PIR). The HR3 exterior skin is 26 gauge G90 galvanized or AZ50 Galvalume steel, with 24 and 22 gauge optional. The HR3 interior skin is 26 gauge G90 or AZ50, with 24 and 22 gauge optional, or 26 gauge 304 2B stainless steel for interior application only.

Published global warming potential for the HR3 is 5.6 to 10.6 lb CO2eq per square foot (27.5 to 51.5 kg CO2eq per square meter).

The nominal R-value of the HR3 is 7.2 per inch at 75°F mean temperature and 8.2 per inch at 35°F mean temperature, by ASTM C518.

• 1.5 inches: R-10.8 at 75°F mean and R-12.3 at 35°F mean
• 2.5 inches: R-18.0 and U-0.087 at 75°F mean; R-20.5 and U-0.078 at 35°F mean
• 3 inches: R-21.6 and U-0.073 at 75°F mean; R-24.6 and U-0.062 at 35°F mean
• 4 inches: R-28.8 and U-0.040 at 75°F mean; R-32.8 and U-0.032 at 35°F mean
• 5 inches: R-36.0 and U-0.031 at 75°F mean; R-41.0 and U-0.026 at 35°F mean
• 6 inches: R-43.2 and U-0.022 at 75°F mean; R-49.2 and U-0.020 at 35°F mean

• FM 4880 Class 1 fire rating: passed
• FM 4471 Class 1 panel roof: pass, with rated assemblies listed in RoofNav
• ASTM E108 roof coverings fire test: pass for installation into steel supports only
• ASTM E84: flame spread index 25 or less, smoke developed index 450 or less
• CAN/ULC S126, NFPA 286 and CAN/ULC S138: pass
• Air infiltration by ASTM E1680: under 0.036 cfm per square foot at 20 PSF, at flat slope
• Water penetration by ASTM E1646: no leakage at 12 PSF, at flat slope
• IAPMO ER-301 and Texas Department of Insurance RC-683

The HR3 interior is painted Imperial White, the AWIP standard interior finish. The exterior of the roof panel is non-embossed (smooth), as on all AWIP roof panels.

Exterior colors come from the AWIP color chart, and color chips are available on request. The roof panel has a washable interior surface and is weathertight.

• HR Series (HR5)
• Standing Seam (SR2)
• OneDek