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Thermal Bypass Workshop: Understand the Risks and Learn from Case Studies – Online

Event Details

Join us for a 2.5 hour session on thermal bypass with UK expert Mark Siddall.

Known as thermal bypass, air movement across, within and behind insulation increases heat loss, causes discomfort and enables mould growth.

Discover how this unregulated, little known phenomenon has the potential to cause:

  • 10x more heat loss than predicted (leading to larger bills and CO2 emissions)
  • drafts and thermal discomfort
  • mould growth
  • burst pipes and leaks
  • fire and smoke risks

About this Workshop

Join author Mark Siddall for a live online workshop which explores how you can avoid various types of uncontrolled air movement and arm yourself with the correct knowledge and skills so that you can avoid failures in design and construction, reduce risks and liabilities, and deliver buildings that perform as predicted.

This workshop will explore how thermal bypass risks can be addressed, and performance gaps avoided, by adopting good design and construction practices.

In the workshop Mark, Principal at Mark Siddall Consulting, will:

  • review existing knowledge and understanding about the impact of thermal bypass,
  • showcase practical examples of best practice, and
  • give you the chance to hone your skills so that you can eliminate thermal bypass risks

Come Prepared

It is recommended that attendees review the Thermal Bypass paper before attending the event so that they can become more informed before the event and ask better/more nuanced questions on the day and get the most out of the experience.

Schedule

11:00 Introduction

11:05 Thermal Bypass Presentation

12:40 Q&A

12:50 Details Workshop

13:20 Final Q&A

13:30 Close

About the Speaker

Mark Siddall

An award-winning Passivhaus architect with over 35 years experience in the construction industry, Mark Siddall is one of the pioneers that brought Passivhaus to the U.K. Through his architectural practice LEAP, Mark and his team help self-builders, homeowners and communities by designing new homes and retrofits which are sensitive to the local area and reflect a high standard of architecture.

With a keen interest in building performance issues of usability and practicality inform his approach and have increasingly led to an appreciation of the need for an integrated design process. Mark is a technical advisor to the Passivhaus Trust, has delivered lectures and training in the USA, New Zealand, Germany and the UK and contributed to peer reviewed research.

You can learn more about Mark's work on his website, the LEAP website, as well as on on LinkedIn.

When
25/11/2026 from 09:30 to 11:00
Event Fee(s)
Members £45.00
Non-Members £60.00
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