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May retrofit also include acoustics aspects?

机译：可能改造还包括声学方面？

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In recent years technology has tried to develop new solutions suitable for extending and improving the life of existing buildings. In Italy, working on the building envelope has turned out to be one of the most common processes to improve buildings' thermal insulation. The aim is generally reached by replacing windows and adding ETICS (External Thermal Insulation Composite System) to the facades. But could these solutions also be a good acoustic insulation enhancement ? Nevertheless renovation is always a very complicated issue caused by the unavoidable existing limits. In many cases, because of the structural aspects, light solutions should be found to avoid the increase of weight on the existing building, or to limit as much as possible solutions with heavy loads. In order to propose acoustical solutions for facades as well as airbone and impact sound insulation solutions suitable to fit the needs mentioned above, the issues have been investigated in real buildings under renovation, during work, by carrying on acoustical measurements during different steps. In this study, lightweight solutions have been investigated and optimized, the effect of installations has been even analysed and optimized as well as the effect of suspended ceilings. The contribution to sound insulation and impact noise has been studied. The effects of suspended ceiling under the separating floor have been tested. Last but not least, in a modular building the facades were coated with 14 cm ETICS of EPS (expanded polystyrene) and with 14 cm ETICS of mineral wool. The sound insulation effect of both systems has been studied and compared. The research, carried out on real buildings, has shown that lightweight solutions can be useful responses in renovating old buildings and furthermore it is possible to combine thermal and acoustical insulation for optimizing the different solutions.
机译：近年来，技术试图开发适合延长和改善现有建筑物寿命的新解决方案。在意大利，在建筑信封上工作已经成为改善建筑物保温的最常见过程之一。通常通过更换窗户并将ETICS（外部绝热性复合系统）添加到外墙来达到目的。但这些解决方案也可以是一个良好的声学绝缘增强吗？然而，由不可避免的现有限制始终是一个非常复杂的问题。在许多情况下，由于结构方面，应发现光解决方案以避免现有建筑物的重量增加，或者尽可能地限制具有重载的可能解决方案。为了提出适用于适合于上述需求的外墙以及空白和冲击隔音解决方案的声学解决方案，通过在不同步骤中进行声学测量，在工作中的重新化下的真实建筑中研究了问题。在这项研究中，已经调查和优化了轻量级解决方案，甚至分析和优化了装置的效果以及悬浮天花板的效果。研究了对隔音和冲击噪声的贡献。已经测试了分离地板下悬浮天花板的影响。最后但并非最不重要的是，在一个模块化建筑物中，外墙涂有14厘米的EPS（膨胀聚苯乙烯），并用14厘米的矿棉纤维纤维。两种系统的隔音效果已经研究并进行比较。在真正的建筑物上进行的研究表明，轻量级解决方案可以对翻新旧建筑物的有用反应，而且还可以将热和声学绝缘结合以优化不同的解决方案。

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