Thermal insulation of internal walls can be used during renovation to improve the thermal performance and internal surface conditions of existing walls, particularly where intervention on the external façade is not possible or practical.
Adding insulation to the internal side of a wall increases its internal surface temperature and reduces heat transfer through the building envelope. Under appropriate indoor temperature and humidity conditions, this can also help reduce the risk of surface condensation associated with cold internal surfaces.
In bathrooms, kitchens and other areas exposed to moisture, the insulation can be integrated into a suitable internal lining system designed to provide a stable substrate for subsequent finishing, including tiles, mosaics, plaster or other compatible finishes.
Internal insulation can also be used to create or renovate architectural elements such as shower enclosures, bathtub surrounds, partition walls and other interior constructions, provided that the selected materials and complete system are suitable for the intended environment.
Correct assessment of the existing wall and careful management of moisture, waterproofing and finishing layers are essential to ensure the performance of the completed construction.