External thermal insulation and roof thermal insulation improve the energy efficiency of buildings by reducing overall energy consumption for heating and cooling. According to European Directive 2002/91/EC, buildings are to have an energy certificate, expressed in kWh/m2, based on the building’s overall energy consumption. It will not be possible for buildings that do not fulfill the energy certificate requirements to be sold/bought or leased, while a high rank identity certificate will increase the building’s market value and reduce a building’s rateable value, thus ensuring increased rent levels.Additionally, innovative construction solutions preventing thermal bridges are recommended, such as the application of integrated external thermal insulation systems.
The first step towards implementing a thermal insulation application is an energy study, undertaken free of charge by a specialised engineer of GLOBAL ENERGY Solutions Ltd, while the selection of materials depends on the type of thermal solution considered to be the most appropriate for the building in question. The cost for thermally insulating a building depends on various factors and varies according to its total area (m2), the geographical location, the season and the thickness of the material used for thermal insulation. Studies indicate that sound retroactive roof and wall insulation can achieve up to 60% reduction of energy loads and annual reduction of consumption as high as €30/m2.