The Evolution of Acoustic Comfort in Italian Houses

Nannipieri, Elisa; Secchi, Simone

doi:10.1260/1351-010x.19.2.99

Cited by 12 publications

(9 citation statements)

References 6 publications

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“…In particular, the apparent sound reduction index R′ W of the vertical plasterboard partition showed a value of 41.2 dB, which is far from the Italian legal requirement [11] of 50 dB (for offices) and also from the value of R w certified in laboratory for this kind of partition and measured in typical Italian buildings [12] Frequency values of R′ of this partition ( Figure 6, continuous line) show an irregular behaviour around 1000 Hz: this kind of performance drop is usual to be expected around 2500-3150 Hz, which is the average coincidence frequency for plasterboard wall [13].…”

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confidence: 58%

Sound Transmission between Rooms with Curtain Wall Façades: A Case Study

et al. 2015

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Curtain walls have reached good performances in terms of façade sound and thermal insulation, as well as solar protection. Nevertheless, the sound insulation performance of the partition between adjoining rooms with continuous curtain wall façades is often reduced by the presence of direct and flanking transmission through the junction with the façade itself.\ud In this work, flanking and direct structural transmissions are analysed with reference to the joints of the mullion of the curtain wall with lightweight plasterboard partitions. Airborne sound insulation and vibration measurements were made in two adjacent rooms affected by the acoustic problems determined by the curtain wall joint. Traditional acoustic measurements, carried out according to EN ISO 16283–1, highlighted problems in sound insulation between rooms, but without any indication on different sound transmission paths through the wall. Vibration measurements were made for every part of the system (frame columns and beams, window panes, plasterboard wall, plasterboard false ceiling, etc.) to better understand the sound transmission paths in these kinds of structures. In this paper the results of this analysis are presented. Moreover, taking into account previous works and measurements made in this research field, different solutions for curtain wall structures are analysed and technical suggestions are given to improve airborne sound insulation between rooms separated by partitions mounted up to metal frames

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confidence: 58%

Sound Transmission between Rooms with Curtain Wall Façades: A Case Study

et al. 2015

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“…Since it is known that the correct placement of the mortar in the vertical and horizontal joints also contributes to the final acoustic performance of a wall. 24,25 Regarding the external walls, although 66% of the partitions achieved the minimum required performance, it was not observed a great variation of the results (±1 dB) independent of the material or coating, demonstrating the need to adopt techniques or materials that can improve the performance, so the standard can be met more easily. As for the slabs, two typologies of the most used in the country were studied, the ribbed and the solid ones.…”

Section: Edificaçãomentioning

confidence: 93%

Rating of acoustic performance levels of NBR 15575 (2013) based on user perception: A case study in the Brazilian Amazon

et al. 2017

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The new Brazilian building performance standard is a landmark in terms of housing regulation in Brazil. Nevertheless, due to the standard recent release, it becomes essential to make its requirements compatible with users' needs. This work has the objective to evaluate the acoustic performance requirements of buildings based on the users' perceptions of acoustic comfort. In order to do this, field tests were performed and surveys were applied to the users. The results demonstrate that the requirements defined by the Brazilian norm are unsuitable to meet the users' necessities. The correlation analysed shows a clear perception of the habitants in relation to the transmitted noise through the slabs and walls. These unsatisfactory results concern the acoustic performance of impact noise between slabs, as well as internal and external walls, showing that construction companies must implement new solutions that can provide greater acoustic performance to achieve acoustic comfort to the users.

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“…Some of these are compulsory some instead are voluntary [15,16]. The evolution in the construction set due to the introduction of these protocols leads the quality of the resulted buildings to a great improvement both in the design step and in the execution.…”

Section: Acoustic Requirementsmentioning

confidence: 99%

The Impact of Acoustics and Energy Efficiency Protocols on Comfort in the Building Industry

Caniato¹,

Bettarello²

2013

OJCE

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Comfort in buildings is one of the most requested value to reach. Today, designers have to deal with so many technical features including outer appearance, air-conditioning, structural layouts, acoustic insulation and inner treatments, materials bio-compatibility, material recycling and re-use, water wasting and so on. In the same time, costumers want to buy buildings which won't cost a lot in terms of heating and cooling as in the past. Besides, every single apartment, loft, office etc., even if there are many of them in a single building, has to be very quiet. Voluntary or compulsory standards, protocols and state laws lead the designers throughout the project and in some cases to the final in field tests too. Nevertheless, different sort of calculations, leading philosophy, expected results, parameters and tags are included in order to achieve the final aims. In this paper, energy efficiency and acoustic performances of buildings are discussed, proposing and comparing designing solutions for a specific case study.

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The Evolution of Acoustic Comfort in Italian Houses

Cited by 12 publications

References 6 publications

Sound Transmission between Rooms with Curtain Wall Façades: A Case Study

Sound Transmission between Rooms with Curtain Wall Façades: A Case Study

Rating of acoustic performance levels of NBR 15575 (2013) based on user perception: A case study in the Brazilian Amazon

The Impact of Acoustics and Energy Efficiency Protocols on Comfort in the Building Industry

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