SOLID HARDWOOD FLOORING
SPECIFIER'S INFORMATION
Acoustic in floor constructions
Commercial / Residential / Sport
E 5.1
E 5.1
INTRODUCTION
The Specifier's Information describes recommended 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.
Furthermore, reference made to Junckers floor systems see C 1.0 and D 1.0.
ACOUSTICS IN FLOOR CONSTRUCTIONS
E 5.0 General information
E 5.1 Specifier's Information
Fig. 1
STEP-SOUND REDUCTION - RECOMMENDED VALUES
Floor systems for residential and commercial applications
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
STATUTORY REQUIREMENTS
In multi story residential buildings, hotels, student hostels, residential care homes, etc. national building regulations normally require a certain step-sound level between dividing floors in two units.
Reference is made to national building regulations.
For recommended step-sound reduction values for selected Junckers floor systems: See Table 1.
Fig. 2
ABSORPTION COEFFICIENTS
| Table 2 | Frekvens, Hz | |||||
| Absorption coefficients for selected floor systems | 125 | 250 | 500 | 1000 | 2000 | 4000 |
| 22 / 20,5 mm batten system with soft packing on concrete | 0.15 | 0.11 | 0.10 | 0.07 | 0.06 | 0.07 |
| 22 / 20,5 mm clip system with PolyFoam on concrete | 0.02 | 0.19 | 0.04 | 0.02 | 0.04 | 0.05 |
| 14 mm clip system with PolyFoam on concrete | 0.01 | 0.13 | 0.07 | 0.02 | 0.03 | 0.01 |
REVERBERATION TIME
Table 2 shows recommended absorption coefficients in the frequency range 125- 4,000 Hz for selected floor systems. For calculation of reverberation time.
Fig. 3