This three-day course reviews commercial property systems and components, including the HVAC, plumbing, electrical, structure and roofing, for the most commonly inspected commercial building types, while highlighting the major differences when compared to residential properties.

This course will also review methodology for commercial inspection pricing/fees and report writing, and is taught in accordance with the International Standards of Practice for Inspecting Commercial Properties (ComSOP).


Upon successful completion of this course, you will be able to:

  • Identify and inspect commercial property HVAC, plumbing, electrical, structure, and roofing systems and related components for the most commonly inspected commercial building types;
  • Describe to your client defects observed at those systems and components, including assembling reports and authoring summaries based on work completed by a specialty consultant; and
  • Competitively bid commercial inspection projects.


Course Date: October 22 – 24, 2019 (8:00 a.m. – 5:00 p.m. each day) — SOLD OUT
Venue: InterNACHI® Headquarters (Boulder, CO 80301 United States)

Stay tuned for future announcements! More dates to be announced. 

Additional Information

Day 1: October 22nd

8:00 a.m. – Noon

Commercial HVAC

  • Components and Operation of Commercial Boilers
  • Components and Operation of Rooftop Package
  • Split HVAC Units
  • Chilled Water Systems, Cooling Towers, and Chillers

1:00 p.m. – 5:00 p.m.

Commercial Plumbing

  • Commercial Plumbing Components and Distribution
  • Backflow Prevention Devices and Water System Ejection Pits
  • Water Heating Systems
  • Gas Supply and Regulation

Day 2: October 23rd

8:00 a.m. – Noon

Commercial Electrical

  • Basics of a Commercial Electrical Service
  • The Differences Between Residential and Commercial Systems
  • Power, Lighting, and Grounding and Bonding Requirements in the Commercial Setting
  • Special Electrical Systems

1:00 p.m. – 5:00 p.m.

Commercial Structure

  • Review of Commonly Inspected Commercial Building Types
  • Foundation, Floor and Wall Systems
  • Roof and Floor Structures
  • Roof Supporting Structures
  • Structural Evaluation Considerations

Day 3: October 24th

8:00 a.m. – Noon

Commercial Roofing

  • Low-Slope Roof Materials, How to Identify Failures, and Life Cycles of Materials
  • Low-Slope Roof Assembly and Structure
  • Methods of Low-Slope Roof Drainage
  • Low-Slope Roof Insulation, Vapor Barriers, and Ventilation

1:00 p.m. – 5:00 p.m.

  • Commercial Inspection Report Writing
  • Inspection Pricing and Fees

James Krumm, CMI® – Commercial HVAC and Plumbing

Ray Kline, CMI® – Commercial Electrical

Ron Huffman, CMI®, P.E., M.B.A – Commercial Structure

Rob Claus, CMI® – Commercial Roofing, Commercial Inspection Report Writing, and Inspection Pricing and Fees

  • Preferred note-taking materials
  • Laptops permitted
  • Course material handouts provided
  • Breakfast, lunch and snacks provided

Please visit for details on traveling and hotels near the venue.