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Condensation in Steep Slope Roof Systems

Condensation in Steep Slope Roof Systems

Learn to to mitigate moisture while meeting building code requirements.

Tuesday, November 7, 2023
1:00 PM - 4:00 PM (MST)

CSU Spur at National Western | Hydro Building

4817 National Western Drive
Denver, CO 80216
United States

Event Details


Condensation in Steep Slope Roof Systems

Condensation in steep slope roof systems has been on the increase. Often resulting in property damage and costly litigation between property owners and contractors. Avoid these issues with steep slope roof systems designed to mitigate moisture while meeting building code requirements.

Protect your company and yourself by discovering solutions to control condensation in roof spaces.

We will cover this topic in 3 parts:

How breathable, vapor-open roofing underlayments mitigate water intrusion - extending the life of the roofing assembly.

  • Describe the history of roofing underlayments.
  • Understand the difference between asphalt felt and synthetic underlayment.
  • Define the roof assembly barriers; heat, air, moisture.
  • Articulate why a breathable roofing underlayment provides superior drying capacity over conventional roofing underlayments.
  • Understand key details when installing a roofing underlayment.

Presented by:      Scott D Wood Senior Building Scientist, Vaproshield

When condensation is not properly managed, it can wreak havoc on roofing systems, including damaging the underlying substrate, framing materials, and interior moisture sensitive components. Proper selection and installation of the roofing system components plays a vital role in the performance of the building’s roofing and thermal systems and goes a long way towards minimizing leaks and condensation.

  • Learn about the properties of condensation and why it occurs in roof assemblies.
  • Learn about different roof assembly types and code requirements to mitigate condensation.
  • Explore case studies of different roof assemblies where condensation resulted in a failure of the roof system.
  • Discuss the effects of ventilation and moisture control on non-vented roofs and vented roofs.
  • Learn about repair designs and methodology for different case studies.

Presented by:      Edward Fronapfel, MSCE, P.E. SBSA; Heidi Klein MSCE, P.E.

Venting steep slope roof systems is not only a code requirement it is an effective means to manage moisture within the roof assembly.

  • How cold climates like Colorado’s affect condensation in steep slope roof systems.
  • Building code requirements for steep slope roof ventilation.
  • Vapor retarders and air barriers as part of the solution.
  • Types of intake and exhaust venting.
  • What happens when steep slope roof systems are not designed and installed to mitigate the risk of condensation?

Presented by:      Dan Cupit - Professional Construction Services

You WILL NOT want to miss this low-cost opportunity to gain valuable knowledge for you and your business!

Tuesday, November 7, 2023

CSU Spur Campus at National Western Center

Hydro Building| Willow Creek Classroom

4817 National Western Drive | Denver 80216

1:00 - 4:00 pm 

Cost:  $40/person CRA & IIBEC Members | $60 Non-Member

Registration starts at 12:45.  Snack and beverages provided.

CRA Member CIU’s = 4 per person | IIBEC Member CEH = 3

Note:  IIBEC is handling registration for this joint event.

Cancellation Policy

For More Information:

Debbie Hathorne
Debbie Hathorne
Executive Director Colorado Roofing Association

CSU Spur Campus at National Western Center

Hydro Building | Willow Creek Classroom

We're excited to be holding the event at this exciting new complex!