True: When applying sound insulation, the solution for the noise should be sought where the noise is created.
Because it gets more difficult to contain noise as it gets diffused. The most effective solution to eliminate the sound of footsteps and impact coming from your upstairs neighbor is that your neighbor should take precautions on their own floors. If your neighbor does not apply sound insulation, the noise will be dispersed through your walls and ceiling. To eliminate the noise coming form your neighbors, sound insulation must be applied on ceiling and shared walls.
True: Your building should be inspected by the experts and the sound insulation methods suitable for your problem must be applied by specialist insulation firms.
True: As the speed of sound is based on the elasticity coefficient and specific weight of the environment, the sound speed changes according to the solid, liquid and gas environments.
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.
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.
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.
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.