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Building envelope and interior grading systems and methods

  • US 10,352,783 B2
  • Filed: 05/06/2015
  • Issued: 07/16/2019
  • Est. Priority Date: 05/07/2014
  • Status: Active Grant
First Claim
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1. A grading system for a building, comprising:

  • one or more processors;

    memory including instructions that, when executed by the one or more processors, cause the one or more processors to;

    receive, from sensors of a building over a network, indoor temperatures of the building and outdoor ambient temperatures at the building;

    determine differences between the outdoor ambient temperatures of the building and the indoor temperatures within the building;

    determine a first average of the differences of a first day;

    determine a second average of the differences of a second day;

    store a first data point for the first day, the first data point including the first average and a first total run time of a heating, ventilation, and/or air conditioning (HVAC) system of the building during the first day;

    store a second data point for the second day, the second data point including the second average and a second total run time of the HVAC system of the building during the second day;

    fit a line to the first and second data points;

    determine a slope of the line;

    generate a first grade for an exterior envelope of the building based on the slope of the line;

    based on the line, determine a third total run time of the HVAC system where a third average of the differences is equal to zero;

    based on the third total run time where the third average of the differences is equal to zero, generate a second grade for internal thermal loads within the building, thermal deficiencies within the building, and deficiencies of the HVAC system of the building;

    generate a displayable report for the building including the first grade of the exterior envelope of the building and the second grade; and

    transmit the displayable report to a user computing device associated with the building.

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