Why Choose This Course?

Understanding airtightness and ventilation is essential for anyone involved in creating energy-efficient, comfortable, and healthy buildings. This course offers a practical, jargon-free introduction to the key concepts, helping learners understand how airtightness impacts energy performance, and how ventilation systems support occupant wellbeing. It’s an ideal starting point for those looking to upskill, support retrofit projects, or move towards compliance with modern building standards. Delivered in an accessible format, it bridges the knowledge gap between theory and real-world application.

Content Overview

This course covers the fundamentals of airtightness and ventilation in the context of energy-efficient building design and retrofit, including:

• What is airtightness? Understanding heat loss, infiltration, and building performance
• Why ventilation matters: types, functions, and health impacts
• Overview of common ventilation systems (natural, mechanical, and hybrid)
• The relationship between airtightness, moisture, and indoor air quality
• Basic testing methods and what they tell us (e.g. blower door tests)
• Practical examples of good practice and common mistakes
• Introduction to relevant regulations and standards

Entry Requirements

There are no formal entry requirements for this course. It is ideal for anyone with an interest in energy-efficient construction, retrofit, or building services, including housing officers, site operatives, coordinators, designers, and sustainability professionals. No prior technical knowledge is required – just a willingness to learn.

Certification

On completion of the course, participants will receive a Certificate of Attendance from The Verdancy Group. This can be used to demonstrate CPD and support further progression into more specialised airtightness, ventilation, or retrofit training.