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APLICACIONES MECÁNICAS DEL CAUCHO, S.A.
S.A. bedeutet Aktiengesellschaft - AG (Format Spanien)
Über APLICACIONES MECÁNICAS DEL CAUCHO Deutschland

Geschäftsführer: Jon Ander Lopetegui Galarraga.
Adresse: Industrialdea zona A - parc. 35, 20159 Asteasu, Gipuzkoa, Spanien.
Handelsregisternummer: A-20101150
USt.-Id-Nr: ESA20101150

Für Anfragen an den Kundenservice: info@mecanocaucho.com

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LABORATORY TEST RESULTS FOR THE EP 700 + SYLOMER ACOUSTIC HANGER IN CLT STRUCTURES

Laboratory test result Clt Structure

Laboratory test result Clt Structure

This article shows the tests results for different Cross-Laminated Timber (CLT) structures when using acoustic hangers for the suspended ceiling.

6/7/2023

INTRODUCTION

Cross-Laminated Timber (CLT) structures are made of layers of timber boards that are glued to each other. The boards of each layer are oriented perpendicular to adjacent layers so similar structural properties can be obtained in both directions.

In general, timber structures are harder to acoustically isolate due to their lower mass compared to concrete structures. Due to this, the proper selection of acoustic insulation products becomes more critical.

suspended ceilings for CLT structures.

THE PRODUCTS THAT HAVE BEEN TESTED ARE:

EP 700 + SYLOMER ACOUSTIC HANGERS

The EP 700 + Sylomer® mounts are anti vibration mounts that have been designed for the hanging of suspended ceilings and walls. They have a direct fixing system, which allows a simple and quick installation without the use of rods. They are particularly suitable for wooden ceilings, usually being fixed by two screws. These mounts are typically installed every 0.5-1 meters. But this feature may be tuned to adapt to the load or natural frequency requirement of the application. The natural frequency at their optimal loading point reaches values below 10 Hz. These technical properties provide a high level of noise and vibration isolation when used in light wooden structures.



RESULTS OF THE LABORATORY TESTS

Main Characteristics

The test area consists of a 5mx4m (20m²) of Best Wood CLT. The EP 700 + Sylomer hangers are distributed along all the surface of the ceiling and hang 2 layers of 12.5mm of plasterboard with a plenum of 100mm for all configurations.

Measurement conditions

  • Test area: 20m2
  • Mass per hanger: 8.6kg/hanger
  • Rel. humidity in test rooms: 51 - 54 %
  • Static pressure in test room 2: 950 - 956 kPa
  • Air temperature: 17.5 - 20°C
  • Volume of source room: 52/m3
  • Volume of destination room: 59/m3


Main Characteristics

In order to show the acoustic advantages when using EP 700 + Sylomer acoustic hangers in a Cross-Laminated Timber structure, impact noise and airborne noise tests are carried out with different configurations:

Scheme Description
Suspended ceiling variant 1 stand
  • 1. 55mm wet screed.
  • 2. ISOVER EP1 layer 40mm.
  • 3. 60mm PE film with Brumma elastic bound.
  • 4. 20mm MULTHITERM.
  • 5. Best Wood CLT 260mm with a filling of 40kg/m2 FLOOR 220.
  • 6. Suspended ceiling (100mm air gap) with AMC EP 700 + Sylomer® acoustic hangers (36 pieces) in all the surface. No cavity damping.
  • 7. 2 sheets of 12,5mm plasterboard.
Suspended ceiling variant 2 stand
  • 1. 55mm wet screed.
  • 2. ISOVER EP1 layer 40mm.
  • 3. 60mm PE film with Brumma elastic bound.
  • 4. 20mm MULTHITERM.
  • 5. Best Wood CLT 260mm with a filling of 40kg/m2. 1x plasterboard, remainder bulk.
  • 6. Suspended ceiling (100mm air gap) with AMC EP 700 + Sylomer® acoustic hangers (36 pieces) in all the surface. No cavity damping.
  • 7. 2 sheets of 12,5mm plasterboard.
Suspended ceiling variant 3 stand
  • 1. 55mm wet screed.
  • 2. ISOVER EP1 layer 40mm.
  • 3. 60mm PE film with Brumma elastic bound.
  • 4. 20mm MULTHITERM.
  • 5. Best Wood CLT 260mm with empty compartment.
  • 6. Suspended ceiling (100mm air gap) with AMC EP 700 + Sylomer® acoustic hangers (36 pieces) in all the surface. No cavity damping.
  • 7. 2 sheets of 12,5mm plasterboard.
Suspended ceiling variant 4 stand
  • 1. 55mm wet screed.
  • 2. ISOVER EP1 layer 40mm.
  • 3. Best Wood CLT 260mm with bulk of FLOOR220
  • 4. Suspended ceiling (100mm air gap) with AMC EP 700 + Sylomer® acoustic hangers (36 pieces) in all the surface. No cavity damping.
  • 5. 2 sheets of 12,5mm plasterboard.
Suspended ceiling variant 5 stand
  • 1. 55mm wet screed.
  • 2. ISOVER EP1 layer 40mm.
  • 3. Best Wood CLT 260mm (40kg/m2) 1x plasterboard, remainder bulk.
  • 4. Suspended ceiling (100mm air gap) with AMC EP 700 + Sylomer® acoustic hangers (36 pieces) in all the surface. No cavity damping.
  • 5. 2 sheets of 12,5mm plasterboard.
Suspended ceiling variant 6 stand
  • 1. 55mm wet screed.
  • 2. ISOVER EP1 layer 40mm.
  • 3. Best Wood CLT 260mm with empty compartment.
  • 4. Suspended ceiling (100mm air gap) with AMC EP 700 + Sylomer® acoustic hangers (36 pieces) in all the surface. No cavity damping.
  • 5. 2 sheets of 12,5mm plasterboard.
Suspended ceiling variant 7 stand
  • 1. 55mm wet screed.
  • 2. ISOVER EP1 layer 40mm.
  • 3. Best Wood CLT 260mm (80kg/m2) 1x plasterboard, remainder bulk.
  • 4. Suspended ceiling (100mm air gap) with AMC EP 700 + Sylomer® acoustic hangers (36 pieces) in all the surface. No cavity damping.
  • 5. 2 sheets of 12,5mm plasterboard.
Suspended ceiling variant 8 stand
  • 1. 55mm wet screed.
  • 2. ISOVER EP1 layer 40mm.
  • 3. 30mm Best Wood bulk
  • 4. Best Wood CLT 260mm with empty compartment.
  • 5. Suspended ceiling (100mm air gap) with AMC EP 700 + Sylomer® acoustic hangers (36 pieces) in all the surface. No cavity damping.
  • 6. 2 sheets of 12,5mm plasterboard.

This way, the acoustic performance of different configurations by using the EP 700 + Sylomer® acoustic hangers can be seen.



Results

The results of the acoustic tests with each configuration are shown below:

VARIANT 1
stand
  • 1. 55mm wet screed.
  • 2. ISOVER EP1 layer 40mm.
  • 3. 60mm PE film with Brumma elastic bound.
  • 4. 20mm MULTHITERM.
  • 5. Best Wood CLT 260mm with a filling of 40kg/m2 FLOOR 220.
  • 6. Suspended ceiling (100mm air gap) with AMC EP 700 + Sylomer® acoustic hangers (36 pieces) in all the surface. No cavity damping.
  • 7. 2 sheets of 12,5mm plasterboard.
Impact noise results - calculated according to ISO 10140-3 Airborne noise results - calculated according to ISO 10140-2
stand stand
Ln,w: 36 dB IIC 74 Rw: 84,6 dB STC 84
Go to the Impact Noise Report(PDF) Go to the Airborne Noise Report(PDF)
Maximum impact noise level results (rubber ball) - calculated according to ISO 10140-3
stand
Li,Fmax: 39 dB IIC 71 Test Report(PDF)
Estimated natural frequency: 11,8Hz

VARIANT 2
stand
  • 1. 55mm wet screed.
  • 2. ISOVER EP1 layer 40mm.
  • 3. 60mm PE film with Brumma elastic bound.
  • 4. 20mm MULTHITERM.
  • 5. Best Wood CLT 260mm with a filling of 40kg/m2. 1x plasterboard, remainder bulk.
  • 6. Suspended ceiling (100mm air gap) with AMC EP 700 + Sylomer® acoustic hangers (36 pieces) in all the surface. No cavity damping.
  • 7. 2 sheets of 12,5mm plasterboard.
Impact noise results - calculated according to ISO 10140-3 Airborne noise results - calculated according to ISO 10140-2
stand stand
Ln,w: 35,8 dB IIC 74 Rw: 85,8 dB STC 85
Go to the Impact Noise Report(PDF) Go to the Airborne Noise Report(PDF)
Maximum impact noise level results (rubber ball) - calculated according to ISO 10140-3
stand
Li,Fmax: 40 dB IIC 70 Test Report(PDF)
Estimated natural frequency: 11,8Hz

VARIANT 3
stand
  • 1. 55mm wet screed.
  • 2. ISOVER EP1 layer 40mm.
  • 3. 60mm PE film with Brumma elastic bound.
  • 4. 20mm MULTHITERM.
  • 5. Best Wood CLT 260mm with empty compartment.
  • 6. Suspended ceiling (100mm air gap) with AMC EP 700 + Sylomer® acoustic hangers (36 pieces) in all the surface. No cavity damping.
  • 7. 2 sheets of 12,5mm plasterboard.
Impact noise results - calculated according to ISO 10140-3 Airborne noise results - calculated according to ISO 10140-2
stand stand
Ln,w: 37,7 dB IIC 72 Rw: 82,9 dB STC 82
Go to the Impact Noise Report(PDF) Go to the Airborne Noise Report(PDF)
Maximum impact noise level results (rubber ball) - calculated according to ISO 10140-3
stand
Li,Fmax: 43 dB IIC 67 Test Report(PDF)
Estimated natural frequency: 11,8Hz

VARIANT 4
stand
  • 1. 55mm wet screed.
  • 2. ISOVER EP1 layer 40mm.
  • 3. Best Wood CLT 260mm with bulk of FLOOR220
  • 4. Suspended ceiling (100mm air gap) with AMC EP 700 + Sylomer® acoustic hangers (36 pieces) in all the surface. No cavity damping.
  • 5. 2 sheets of 12,5mm plasterboard.
Impact noise results - calculated according to ISO 10140-3 Airborne noise results - calculated according to ISO 10140-2
stand stand
Ln,w: 43,8 dB IIC 66 Rw: 75,8 dB STC 75
Go to the Impact Noise Report(PDF) Go to the Airborne Noise Report(PDF)
Maximum impact noise level results (rubber ball) - calculated according to ISO 10140-3
stand
Li,Fmax: 44 dB IIC 66 Test Report(PDF)
Estimated natural frequency: 11,8Hz

VARIANT 5
stand
  • 1. 55mm wet screed.
  • 2. ISOVER EP1 layer 40mm.
  • 3. Best Wood CLT 260mm (40kg/m2) 1x plasterboard, remainder bulk.
  • 4. Suspended ceiling (100mm air gap) with AMC EP 700 + Sylomer® acoustic hangers (36 pieces) in all the surface. No cavity damping.
  • 5. 2 sheets of 12,5mm plasterboard.
Impact noise results - calculated according to ISO 10140-3 Airborne noise results - calculated according to ISO 10140-2
stand stand
Ln,w: 46,9 dB IIC 63 Rw: 73,1 dB STC 73
Go to the Impact Noise Report(PDF) Go to the Airborne Noise Report(PDF)
Maximum impact noise level results (rubber ball) - calculated according to ISO 10140-3
stand
Li,Fmax: 50 dB IIC 60 Test Report(PDF)
Estimated natural frequency: 11,8Hz

VARIANT 6
stand
  • 1. 55mm wet screed.
  • 2. ISOVER EP1 layer 40mm.
  • 3. Best Wood CLT 260mm with empty compartment.
  • 4. Suspended ceiling (100mm air gap) with AMC EP 700 + Sylomer® acoustic hangers (36 pieces) in all the surface. No cavity damping.
  • 5. 2 sheets of 12,5mm plasterboard.
Impact noise results - calculated according to ISO 10140-3 Airborne noise results - calculated according to ISO 10140-2
stand stand
Ln,w: 40,2 dB IIC 70 Rw: 78,9 dB STC 78
Go to the Impact Noise Report(PDF) Go to the Airborne Noise Report(PDF)
Maximum impact noise level results (rubber ball) - calculated according to ISO 10140-3
stand
Li,Fmax: 47 dB IIC 63 Test Report(PDF)
Estimated natural frequency: 11,8Hz

VARIANT 7
stand
  • 1. 55mm wet screed.
  • 2. ISOVER EP1 layer 40mm.
  • 3. Best Wood CLT 260mm (80kg/m2) 1x plasterboard, remainder bulk.
  • 4. Suspended ceiling (100mm air gap) with AMC EP 700 + Sylomer® acoustic hangers (36 pieces) in all the surface. No cavity damping.
  • 5. 2 sheets of 12,5mm plasterboard.
Impact noise results - calculated according to ISO 10140-3 Airborne noise results - calculated according to ISO 10140-2
stand stand
Ln,w: 38,9 dB IIC 61 Rw: 78,1 dB STC 78
Go to the Impact Noise Report(PDF) Go to the Airborne Noise Report(PDF)
Maximum impact noise level results (rubber ball) - calculated according to ISO 10140-3
stand
Li,Fmax: 43 dB IIC 67 Test Report(PDF)
Estimated natural frequency: 11,8Hz

VARIANT 8
stand
  • 1. 55mm wet screed.
  • 2. ISOVER EP1 layer 40mm.
  • 3. 30mm Best Wood bulk
  • 4. Best Wood CLT 260mm with empty compartment.
  • 5. Suspended ceiling (100mm air gap) with AMC EP 700 + Sylomer® acoustic hangers (36 pieces) in all the surface. No cavity damping.
  • 6. 2 sheets of 12,5mm plasterboard.
Impact noise results - calculated according to ISO 10140-3 Airborne noise results - calculated according to ISO 10140-2
stand stand
Ln,w: 42,2 dB IIC 68 Rw: 80,8 dB STC 80
Go to the Impact Noise Report(PDF) Go to the Airborne Noise Report(PDF)
Maximum impact noise level results (rubber ball) - calculated according to ISO 10140-3
stand
Li,Fmax: 48 dB IIC 62 Test Report(PDF)
Estimated natural frequency: 11,8Hz

These results clearly show how the noise insulation can be improved in CLT structures by using various configurations using EP 700 + Sylomer acoustic hangers.

Do not hesitate to contact our application engineers for more information on this product.

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