Impact sound transmission

IMPACT SOUND FROM STAIRS

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CONCERNING ONLY PRECAST CONCRETE STAIRS

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IMPACT SOUND TRANSMISSION- A CHALLENGE IN FUTURE

• MORE FOCUS ON ACCESSIBLE SOLUTIONS

• MOST CONSTRUCTIONS CAN NOT SATISFAY COMING NEW REQUIREMENTS

• SOUND TRANSMISSION FROM STAIRS TO NEIGHBOUR ROOMS

• REDUCED QUALITY OF THE FLAT/BUILDING

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TRANSMISSION FROM CONCRETE STAIRS WITHOUT SOUND REDUCING EFFORTS

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65 -70* dB = Normal values in situ build stair/landing Normal values in situ build stair/landing constructionsconstructions

( *= ( *= similar to a normal conversation )

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Max allowable values for weighted impact sound pressure levels for living houses (in Norway)

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Max allowable values for weighted impact sound pressure levels

(ex. Building regulations in Norway/ Norwegian Standard NS 8175; Class C- buildingsClass C buildings are the most common ( = value for class B))

• Livingroom 53 dB (48 dB for class B)

• School 58 dB

• Hospital 58 dB

• Hotel 58 dB

• Meeting room 58 dB

• Office 63 dB

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The principle for effective sound reduction

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SOLUTIONS FOR IMPACT SOUND REDUCTION

We have developed products suitable together with ourTSS and RVK units.

These solutions are reducing the impact sound farbelow the limits in the building standards

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SINTEF* BUILDING AND INFRASTRUCTURE HAVE IN 2007 TESTED OUR SOLUTIONS

Testing of impact sound transmission in two new buildings, and one existing office building in Oslo

Several solutions with TSS and RVK were tested

* = SINTEF is the largest independent research organiztaion in Scandinavia.

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TSS WITH MASTICORD 6,5 MM PLATE, 72 SHORE

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TSS AND ELASTOMER SOCK FOR WALL, 58 SHORE

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TSS WITH ELASOMER SOCK FOR LANDING, 58 SHORE

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SOLUTIONS FOR IMPACT SOUND REDUCTION

8 - 10 dB 10 - 12 dB 28 - 31 dB Casted Casted Casted

Measured reduction values

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(15 – 18 dB) (15 – 18 dB)

not casted in not casted in

Recommended solution for living houses

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Reduction: 28 - 31 dB

Recommended solution for: Schools, Hospitals, Hotels, Meetingroom, Offices

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Reduction: 10-12 dB

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SINTEF REPORT MARCH 2008

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Hints regarding impact sound transmission

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We have similar products for balcony/walkway to reduce impact sound transmission

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www.invisibleconnections.no

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THANK YOU FOR ATTENTION!

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