Acoustic performance tests on CLT

Field measurements at the MT-Hotel

Location: MT-Hotel (Incoming Center Murtal) Hauptstraße 242 AT - 8740 Zeltweg Performed by: Schallschutz im Holzbau SSIH Dipl. Ing. (FH) Hans-Peter Buschbacher Scheuchenstulstraße 11 D-83024 Rosenheim E-Mail: hpb@schallschutz-holzbau.de Customer: Stora Enso WP Bad St. Leonhard GmbH Wisperndorf 4 9462 Bad St. Leonhard Austria Date of testing: 24.05.2012 The tests were performed according to following international standards: airbourne sound: DIN EN ISO 140-4: 1998-12 Field measurements of airborne sound insulation between

rooms. Rating according to DIN EN ISO 717-1 : 2006-11 impaced sound: DIN EN ISO 140-7 : 1998-12

Field measurements of impact sound insulation of floors Rating according to DIN EN ISO 717-2 : 2006-11

Note: The results of field measurements are usually lower than the laboratory measured values. The difference between the results is due to flanking transmission on site.

Object description

location: Zeltweg – Austria

client: Fritz Mayer & Tieber Busreisen

architect: KLMS Architekten, Gleisdorf

planning of the timber construction:

ZMP GmbH, Grambach

assembly of the timber construction:

Zimmerei ALPE GmbH, Fohnsdorf

Type of construction:

cellar and ground floor in reinforced concrete,

1st and 2nd floor in Stora Enso CLT (Cross laminated timber)

quantity of CLT: 450 m³

opening: May 2012

Click the link to see a fast motion video of the erection:

http://www.youtube.com/watch?v=e9wLbbEWpFM (Source: ZMP)

(Source: MT-Hotel GmbH)

Ceilings:

Second floor

First floor

Connection node: external wall – ceiling – partition wall (visible CLT)

Connection node: corridor wall (cladded) – ceiling - partition wall (with drying line)

Bearing support: with elastic intermediate layer (Sylomer Typ M) on the upper side.

Wall anchoring: with sound insulated mounting brackets on the upper side.

Source-

room

Receive-

room

Source- room

Receive- room

Floor 1:

CLT 165mm

Building components:

10 mm

60 mm

--

30 mm

50 mm

--

165 mm 3 mm

70 mm

12,5 mm

carpet

cement screed

plastic separation layer

impact sound absorbing subflooring (Isover TDPT 25; s´ = 19 MN/m³)

gravel fill, loos filling

trickling protection

StoraEnso CLT, 5 Layers

insulation stripe

nonius suspension for CD 60x27 Universal Bracket,

the space between is filled with 50mm mineral wool

gypsum plasterboard

Weighted Standardized Level Difference: DnTw (C;Ctr): 63 (-3;-9) dB (Source: report 2012-05-24-0012-L)

Weighted Standardized Impact Sound Pressure Level: L´nT,w (CI): 35 (6) dB (Source: report 2012-05-24-0012-T)

Floor 2:

CLT 223mm

Building components:

10 mm

60 mm

--

30 mm

50 mm

--

223 mm 3 mm

70 mm

12,5 mm

carpet

cement screed

plastic separation layer

impact sound absorbing subflooring (Isover TDPT 25; s´ = 19 MN/m³)

gravel fill, loos filling

trickling protection

StoraEnso CLT, 7 Layers

insulation stripe

nonius suspension for CD 60x27 Universal Bracket,

the space between is filled with 50mm mineral wool

gypsum plasterboard

Weighted Standardized Level Difference: DnTw (C;Ctr): 62 (-3;-9) dB (Source: report 2012-05-24-0149-L)

Weighted Standardized Impact Sound Pressure Level: L´nT,w (CI): 39 (7) dB (Source: report 2012-05-24-0149-T)

Walls:

Second floor

Connection node: external wall – ceiling – partition wall (visible CLT)

Connection node: corridor wall (cladded) – ceiling - partition wall (with drying line)

Bearing support: with elastic intermediate layer (Sylomer Typ M) on the upper side.

Wall anchoring: with sound insulated mounting brackets on the upper side.

Receive-

room Source-

room

dfdffs

Receive- room

Receive- room

Source-

room

Wall

1

Wall

2

Wall

3

Wall 1: Compartment wall – drying line

Building components:

12,5 mm

12,5 mm

50 mm

5 mm

97 mm

20 mm

5 mm

97 mm

5 mm

50 mm

12,5 mm

12,5 mm

gypsum plasterboard

gypsum plasterboard

metal-Profile (Knauf CW), e = 625 mm; filled with 50 mm mineral wool (free-standing)

insulation stripe (between metal-profiles and CLT)

StoraEnso CLT 97 C3s

Sound absorbing insulation material, (Knauf TPT, s´= 40 MN/m³)

space

StoraEnso CLT, 3 Layers

insulation stripe (between metal-profiles and CLT)

Metal-Profile (Knauf CW), e = 625 mm; filled with 50 mm mineral wool (free-standing)

gypsum plasterboard

gypsum plasterboard

+ app. 870 mm high, veneer wall panelling (on both sides, unknown composition)

Weighted Standardized Level Difference: DnTw (C;Ctr): 55 (-4;-10) dB (Source: report 2012-05-24-0028)

Wall 2: Compartment wall – visible CLT

Building components:

97 mm

12,5 mm

30 mm

30 mm

5 mm

97 mm

StoraEnso CLT, 3 Layers

gypsum plasterboard

sound absorbing insulation material, (Knauf TPT, s´= 40 MN/m³)

sound absorbing insulation material, (Knauf TPT, s´= 40 MN/m³)

space

StoraEnso CLT, 3 Layers

+ app. 870 mm high, veneer wall panelling (on both sides, unknown composition)

Weighted Standardized Level Difference: DnTw (C;Ctr): 61 (-3;-10) dB (Source: report 2012-05-24-0032)

Wall 3: Compartment wall - corridor wall

Building components:

12,5 mm

12,5 mm

50 mm

5 mm

97 mm

12,5 mm

gypsum plasterboard (corridor)

gypsum plasterboard

Metal-Profile (Knauf CW), e = 625 mm; filled with 50 mm mineral wool (free-standing)

insulation stripe (between metal-profiles and CLT)

StoraEnsoCLT, 3 Layers

gypsum plasterboard (room)

+ app. 870 mm high, veneer wall panelling (on one side, unknown composition)

Weighted Standardized Level Difference: DnTw (C;Ctr): 60 (-2;-8) dB (Source: report 2012-05-24-0170)

NK 2012.09.25