Energy Efficient Doors

Reduce Energy Costs

The reason energy efficient steel doors work so well is because of their unique construction. Hollow metal doors are two pieces of steel with a core material on the interior which helps prevent temperature loss from transferring outside quickly. This significantly lowers the U-value and reduces energy costs in areas with hot or cold weather.

Many design professionals are turning to energy efficient doors and frames to meet regional codes and reduce energy cost requirements for building owners. Manufacturers generally test to SDI-113 for the thermal transmittance of steel door and frame assemblies.


SDI has developed a variety of resources for architects, specifiers and distributors on energy efficient doors and frames below.


The Growing Demand for Thermal Break Frames

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Why Have Thermal Performance Ratings Changed?

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SDI 113

Standard Practice for Determining the Steady-State Thermal Transmittance of Steel Door and Frame Assemblies

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The SDI Certified manufacturers below make energy efficient doors that meet our high standards.