Energy Efficient Steel Stiffened Door


 Now certified Silver to UL Environment 102


With energy prices continually increasing and commercial buildings consuming almost 40% of energy usage in North America, SMP remains committed to providing maximum thermal resistant solutions.

The new Trio-E door is steel stiffened for strength, but has achieved an operable U Factor of 0.29 which is 50% better than other steel stiffened doors currently available on the market today. The U-Factor of 0.29 was achieved in an operable condition (ASTM1363) using the SMP Thermal Break Frame and Pemko 273x3AFG Thermal Barrier Saddle.

The Trio-E will provide years of strength and sustainable energy savings for any building. Many building owners spend millions of dollars a year on energy bills and the Trio-E represents a chance for them to realize significant savings on a new or retrofit project.

• Steel stiffened core for added strength and durability
• Hurricane rated up to +/- 100 psf

• No vertical weld marks on door face sheets so aesthetically pleasing gloss paint can be applied
• Many door designs and color options available

• Lowest operable U-Factor in the industry for a steel stiffened door (U Factor .29)
• First swinging door to be certified to the new UL Environment UL ISR 102 standard

Thermal Performance
Thermal Insulation: U-Factor 0.29, R-Value 3.4 (ASTM C1363), For test data regarding ASTM C518 and ASTM E 283.
Standard Features:
• 18 gauge face sheets, 16 gage optional
• 16 gauge inverted end channels welded to both face sheets for added strength.
• 14 gauge closer reinforcement

Available Sizes:
• 4’0” x 8’0” maximum single, 8’0” x 8’0” maximum pair

• Cold rolled or galvanneal steel

• 22 gauge steel stiffeners spaced every 6” apart with injected polyurethane foam

Edge Construction:
• Mechanically interlocked, hemmed vertical edge seams
• Seamless edges available

Hardware Reinforcements:
• Reinforcing formost lock preps, including concealed hardware
• 7 gauge steel hinge reinforcements

• Electrostatically applied prime base coat

• Physical endurance testing: Meets ANSI A250.4 performance test, level A (1,000,000 cycles) class 1 stiffness
• Fire rating: Up to and including 3 hour  4’0”x 8’0” singles  and 8'0" x 8'0" pairs (UL10C) UL & 90 min 4'0" x 8'0" singles WH agencies.