Bonus XPS

False Facts

False: Sheathing is not required in very hot climates.

True: Sheathing (thermal insulation) enables significant saving from the energy and fuel consumed for heating in winter and cooling in summer. As energy is consumed to heat the structures, a specific amount of energy is required to cool them, too. This electrical energy required in hot zones is almost 3 times more expensive than the energy needed for heating. Thus, sheathing (thermal insulation) is a must also in hot climates.

False: If the walls of your building are aerated concrete, extra thermal insulation is not required.

True: Aerated concrete is a building material, and cannot be used as a thermal insulation or sheathing material just by itself in specific climate zones. All building materials used on surfaces, roofs and floors including columns and beams should be insulated with thermal insulation materials ensuring no thermal bridge is created, and specially coated insulated glass units and insulated profiles should be used in doors and windows.

False: Our building lets in cold air especially from its north facade. Thus, sheathing only the north facade will solve the thermal insulation issue of our building.

True: Thermally insulating only one facade would cause thermal bridges to form and the heat losses to continue on the other facades that are not thermally insulated. Thus, all building components including roof, wall, flooring, console, door and windows should be thermally insulated.

False: I can ask any painter to apply thermal insulation.

True: Your building should definitely be insulated by an insulation company experienced in thermal insulation only after the assessments made by the experts. You can access these companies through IZODER.

False: If we apply external coating materials such as glass mosaic, PVC, aluminum, we would no longer need to apply thermal insulation.

True: Coating materials should not be confused with thermal insulation materials. To ensure thermal insulation, the right thermal insulation materials should be preferred between the coating materials and the external surface.

False: Thermal insulation loses its impact in time.

True: If the materials such as XPS and stone wool are produced, stocked and applied in line with the standards, than they last for the lifetime of the building.

False: Thermal insulation is very costly.

True: Thermal insulation is an advantageous application that provides up to 50% saving in medium and long term since it sustains its performance throughout the building's life cycle. Moreover, it improves the quality of life by providing a healthy space.

False: I can determine the thickness on the external walls and roof of my building based on my budget.

True: The insulation thickness on the external walls and roof of your building varies regionally and is identified with a calculation method followed within the framework of TS-825 Thermal Insulation Rules. TS-825 is a standard that obliges to insulations required for the efficient use of energy as of the design phase of the building, and limits the annual heating and cooling power requirement.

False: Energy Performance Certificate is not obligatory for buildings and I don't think it would be beneficial to our building in the long term.

True: Energy Performance Certificate that had begun to be applied as of 1 January 2011 based on Building Energy Performance (BEP) regulation is mandatory for the new buildings and the old buildings are required to get their Energy Performance Certificate until 2 May 2017. Using the insulation materials at the right thickness in all insulation applications on your building will enable the building to play a remedial role in energy consumption and greenhouse gas emission classes, and these information will enable the building's real estate value to increase as they will be indicated on the building's Energy Performance Certificate (EPC). After 2 May 2017, it would not be possible to neither sell or rent residences without an EPC.

False: It is better to insulate building walls internally instead of externally.

True: External thermal insulation of walls should be preferred. Thus, you may benefit from both the heat accumulation capacity of the facade material and remove the risk of condensation within the wall along with the interior wall surface arising from the high temperature of the heavy mass. Moreover, since the entire facade is protected with insulation materials, there won't be any thermal bridges. On the other hand, internal insulation is preferred in buildings where instant heating is required and external intervention is not allowed, provided that there is an expert control during the entire process.

False: Bitumen water insulation membranes also provide thermal insulation. No extra application is required.

True: Bitumen water insulation membranes does not provide thermal insulation, they may only be used as water insulation materials.

False: A building material to have a low thermal conductivity coefficient is enough for this material to be used as a thermal insulation material.

True: In addition to the fact that low thermal conductivity coefficient is an important criterion for "thermal insulation", it is also required for the material to be thick enough. While determining the Thermal Resistance (m2.K/W) in thermal insulation calculations, thermal conductivity and thickness values are considered together. The materials with a lambda (λ) value lower than 0.065 are described as thermal insulation materials in TS-825.

False: Insulation materials prevent the building to breathe and cause it to decay.

True: The measurement that needs to be considered here is μ and the breathability of the building should be determined based on μ value. Thermal insulation materials protect the support structure of the building from external weather conditions with sheathing and enable the structure to be protected from the tensions that may arise due to thermal differences. The ares that are hot in summer and cold in winter create tensions as the structural elements expand or shrink in building. These tensions cause the structural elements to crack in time. However sheathing prevents these cracks and the corrosion in the iron structure.

False: The thermal insulation on the external walls is enough for the building.

True: On the contrary, the heat transferred through the roof and the floor are significant as much as the facades in heat losses and gains. Thus, it is important to insulate the floor and the roof besides the walls. The building base to be reinforced concrete creates a thermal bridge effect on the floor and leads to loss of heat by conveying the heat in the structural columns to the soil rapidly.