Air Tightness & Vapour Control in Modern Homes

Organisation profile

Passive House Systems distributes products for low energy housing including: Air Tightness, Wind Tightness and specialist insulation products in the UK and Ireland. When our products are specified and used correctly the homeowner has the comfort of knowing that our products will minimise heatloss and vapour transfer through their building fabric for a minimum of 40 years. Resulting in lower energy bills, less thermal bridging, reduced incidence of condensation (with correct ventilation rates).

Learning objectives

The participants will have an overview of the air tightness requirements for different industry standards, including Passive House design standard. Participants will understand scenarios which causes interstitial condensation to build up and air to travel in and out of a building fabric, they will see solutions (products & applications) to prevent these problems. Participants will understand how air tightness is measured, including the different units of measurements. 

Course outline

What is air tightness? 

What is Vapour Control? 

Why build for Air tightness and Vapour Control Condensation in Buildings.

Understanding the causes of Infiltration and Ex-filtration. 

Descriptions of Air Leakage Paths.

Won’t an airtight house be a stuffy house? 

Will installing for Air tightness & Vapour Control save energy? 

Ventilation for the Occupant.

How is Air Tightness Measured?

What level of air tightness should I aim to achieve? 


Application Videos 

Trainer's profile

Jason Healy is the Passive house Systems sales representative for Ireland and instructor for airtightness installation. He has 28 years of experience in Construction as a: designer, installer and consultant with qualifications in: building studies, Building energy rating, Energy efficient building systems & Passive house as well as being a qualified brick layer

Course duration

6 hours: 3 hours theory, 3 hours practical

Assessment and certification

The session includes an assessment at the end on the content covered that day and a certificate of course completion.

Who should attend

Design and construction teams including: Engineers, Architects, contractors, site foremen, Carpenters and plasterers and other interested trades


No data found