ND03 – MDPC1: The Existing Structure

Tuesday, September 29 from 8:00 AM to 12:00 PM |

This course is related to how a new deck will interact with an existing site and building. Building, plumbing, mechanical, electrical, and fuel-gas systems and codes must all be considered when designing a deck to effectively work with a home. Guidance, requirements and limitations for integrating a deck with a home are provided.
Length: Approximately 4 hours. ICC Approved for .3 CEU

Objectives: Upon completion of this course, attendees will:

  1. Be able to identify building systems and components located on the exterior of a typical home and how they may affect deck design.
  2. Learn how to safely design a deck that will work with emergency escape and rescue windows and to mitigate the hazards associated with window glass.
  3. Understand the various ways an improperly designed deck can negatively and hazardously affect building systems of the existing structure.

About the Presenter:



Glenn Mathewson

Deck Industry Consultant and Building Plans Analyst at

Westminster, CO , United States

Glenn Mathewson began his construction career in the trenches, starting as a laborer and carpenter’s apprentice, to framing homes as a subcontractor and later operating his own remodeling and deck-construction company. Glenn then spent five years working for the City of Westminster, CO as a building, plumbing and mechanical inspector, and earned a Master Code Professional certification from the International Code Council. He continues to work for the City as a part-time plans analyst and allots the remainder of his professional time to freelance work. Drawing on his experience as a tradesman, contractor, consultant and building inspector, he is able to review, discuss and teach the standards of construction with a true understanding of the realities involved with applying them in the field. Glenn has authored dozens of technical articles in the “Professional Deck Builder” and the “Journal of Light Construction”, as well as the International Code Council’s new book, Deck Construction Based on the 2009 International Residential Code. In 2011 he took the role as Technical Advisor to the North American Deck and Railing Association (NADRA), where he assists the association with code related initiatives and the development of the Master Deck Builder Certification program and exams. Glenn also works as a construction and code educator, with audiences ranging from contractors to building officials.