HERS Rater Certification Requirements

A certified home energy rater must successfully complete training by a RESNET Accredited Rater Training Provider and must be certified by a RESNET Accredited Rating Provider.

A rater must successfully complete training by a RESNET accredited rater training organization. The training is conducted in accordance with a syllabus developed by RESNET. The training addresses:

  • Basic principles of building science (i.e., viewing the home as a system)
  • Thermal resistance of insulation materials
  • The minimum rated features for buildings
  • Blower door testing procedures
  • Duct leakage testing procedures
  • Variations in construction types and their ramifications
  • Types and efficiencies of windows
  • Types and efficiencies of heating, cooling, water heating, and lighting systems
  • Types and characteristics of space conditioning and domestic hot water distribution systems
  • Types of thermostatic controls
  • Determination of air leakage
  • Determination of fuels used by major appliances
  • Utility rate structures
  • On-site inspection procedures
  • Producing a scaled and dimensioned drawing of a home
  • Calculating the area of rectangles, triangles, circles, ovals and combinations of these shapes
  • Calculating the volume of boxes, pyramids, spheres, and other geometric shapes
  • Completing a home energy rating checklist or entering data into a home energy rating software program
  • Completing a home energy improvement analysis or entering data into a home energy rating software program that performs improvements analysis
  • Basic knowledge of financial incentive programs and energy efficient mortgages
  • Communicating the benefits of energy saving measures and practices to the consumer
  • Quality assurance

Each candidate rater must perform two ratings including software operations, in the presence of trainers.

Certified Raters must also pass examinations that demonstrate a practical, working ability to effectively use the knowledge and skills set contained in Section 5.3 of Chapter Two of the national home energy rating standard to produce accurate and fair Home Energy Ratings. This examination may either follow training or it may be taken as a challenge examination.