Drylined Wall Insulation

Insulating drylined walls

Thermal Performance

The thermal performance of walls may be improved by installing an insulated dry-lining system with Ballytherm Insulation behind plasterboard.

This method is well suited to refurbishment projects where existing walls have to be upgraded.
The properties of Ballytherm insulation match those required for this application: its low thermal conductivity minimises the thickness of insulation required, thus limiting the loss of internal volume whilst giving the necessary thermal performance.

The Ballytherm boards may be installed directly behind the plasterboard and restrained by the plasterboard fixings. Alternatively, the boards may be restrained by timber battens fixed through to the wall, with the plasterboard secured to the battens to leave voids between the insulation and the plasterboard.

The reflective surface of the boards reduces radiation heat loss across the air spaces and further improve the thermal performance of the wall.

The thickness of Ballytherm insulation required to meet regulations may be determined from table 9.


Table 9

Further Advice & Information

For more information about Ballytherm products, technical advice, or guidance on the suitability of our products for your project, contact us at + 353 (0)49 95 27000,, email us at info@ballytherm.ie or use our contact form.

Floor Insulation

Design Guidance

Sitework