SOLID HARDWOOD FLOORING
SPECIFIER'S INFORMATION
SOUND - SPECIFIER'S INFORMATION
Commercial / Residential / Sport
E 5.1
E 5.1
ACOUSTICS IN FLOOR CONSTRUCTIONS
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E 5.0 |
General information |
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E 5.1 |
Specifier's Information |
Fig. 1
INTRODUCTION
This Specifier's Information describes guiding values for step sound reduction and absorption coefficients for a wide range of Junckers flooring systems.
For general information on sound and practical guidelines on acoustics in floor constructions with Junckers solid hardwood flooring see E 5.0.
REGULATORY REQUIREMENTS
In multi unit housing, hotels, dormitories, nursing homes, etc. national building regulations normally require a certain step sound insulation level between horizontal divisions.
For guiding step-sound reduction values for a selected number of Junckers floor systems, see the section about Step sound reduction.
STEP-SOUND REDUCTION - RECOMMENDED VALUES
Here you find guiding step sound reduction values, when installing a Junckers floor system in residential, commercial and sports areas, laid on heavy constructed horizontal divisions.
Floor systems for residential and commercial areas:
22 / 20.5 mm clip system on JunckersFoam or PolyFoam: 16 dB
22 / 20.5 mm clip system on cardboard wool felt, 500 g/m2: 15 dB
14 / 15 mm clip system on JunckersFoam or PolyFoam: 17 dB
14 / 15 mm clip system on cardboard wool felt, 500 g/m2: 16 dB
22 / 20.5 mm batten system on 39 x 40 mm battens with Junckers DuoWedges and Step Sound Reduction Pad: 19 dB
22 / 20.5 mm batten system on 63 x 40 mm battens with Junckers DuoWedges and Step Sound Reduction Pad: 20 dB
14 / 15 / 20.5 / 22 mm Glue Down System: 9 dB
Sports floors
22 mm clip sports system on 10 mm SportsFoam underlay: 17 dB
22 mm clip sports system on 5 mm SportsFoam underlay: 15 dB
22 mm DuoBat 120+ double layer sports batten system and 50 mm insulation: 25 dB
22 mm DuoBat 120+ double layer sports batten system: 25 dB
22 mm UnoBat 62+ single layer sports batten system: 21 dB
22 mm UnoBat 45 single layer sports batten system: 18 dB
22 mm Blubat 67 single layer sports batten system: 17 dB
ABSORPTION COEFFICIENTS - ESTABLISHING REVERBERATION TIME
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TABLE 1 |
Frequency, Hz |
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Absorption coefficients for selected floor systems |
125 |
250 |
500 |
1000 |
2000 |
4000 |
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22 / 20,5 mm batten system with soft packing on concrete |
0.15 |
0.11 |
0.10 |
0.07 |
0.06 |
0.07 |
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22 / 20,5 mm clip system with PolyFoam on concrete |
0.02 |
0.19 |
0.04 |
0.02 |
0.04 |
0.05 |
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14 mm clip system with PolyFoam on concrete |
0.01 |
0.13 |
0.07 |
0.02 |
0.03 |
0.01 |