Internally insulating existing external walls: The challenges faced and a possible solution | Saint Gobain

Internally insulating existing external walls: The challenges faced and a possible solution

25 May 2024
Fully Booked

When considering the appropriate measures required to improve the energy efficiency of existing dwellings and other buildings, improving the insulation and airtightness performance of the building envelope often forms part of the primary objectives. However, the external wall typology in many older buildings can often present a set of challenges and risks which, if not considered appropriately, could lead to issues such as condensation, moisture damage to the building fabric and poor internal air quality for the occupants. The Isover Optima system as an example of an insulated internal drylining system which, if specified correctly, can be installed to safely address the such issues.  

This short webinar presentation looks at the key hygrothermal issues to be considered when applying internal insulation to solid and hollow-block external walls. It will identify how these can impact on specification and what could happen if they are not addressed. Using the Isover Optima system as an example, the presentation will look at this Irish Agreement Board approved system components, installation and specification requirements, along with limitations and special detailing areas that should be also be appropriately undertaken. 

All our Technical Academy Online courses are being run through MS Teams and require registration which can be undertaken in a few easy steps by clicking the link below/above. Participants do not need to have MS Teams installed on their devices to attend the webinar. 

Each webinar will include the described presentation with sufficient time also allowed to ask the presenter questions. Questions will be directed to the presenter through the systems chat facility and will be anonymised when responded to.  


90 Minutes

Course Hours

14:00 - 15:30