Stepsound

1
Stepsound
2
Impact sound from stairs
1
3
Impact sound transmission in stairs- a great
challenge

• Stepsound is getting more and more attention in
  an increasing number of countries.
• Too many constructions cannot meet the new
  building regulations.
• Stepsound transmission from stairs/common rooms
  to neightbouring rooms
• reduces the value of the building
• Contractual liability for the contractor or
  owner, towards building regulations

3
4
Illustration from the building standard for
inside concrete stairs, typical intallation in
Norway
4
5
Building advice from SINTEF, Norwegian Research
Institute
5
6
Stepsound from concrete stairs without sound
reducing efforts
6
7
Limit values from Sintef Byggforsk in
Norway(weighted impact sound pressure levels)
7
8
Highest levels for weighted impact sound

• Living room 53 dB (48 dB for kl.B)
• School 58 dB
• Hospital 58 dB
• Hotel 58 dB
• Meeting room 58 dB
• Office 63 dB

8
9
One of the principles for effective sound
reduction- the rubber-effect
9
10
SINTEF BYGGFORSK HAVE IN 2007-08 TESTED OUR
SOLUTIONS

• Testing of Stepsound in two new buildings, and
  one existing office building in Oslo
• Several solutions with TSS and RVK was tested

10
11
International standardized equipment and
procedures for making the stepsound was used
11
12
Measuring of-Sound transfer to the living room
(receival room)
12
13
13
14
We have good solutions for effective sound
reduction

• We have developed products suitable together
  with our TSS and RVK units.
• These solutions can reduce the stepsound to far
  below the limits in the building regulations

14
15
Walkways may have the same limits in the building
standards, regarding stepsound. (53 dB)
15
16
MASTICORD 6,5 MM
16
17
Rubberbox for wall
17
18
Rubberbox for landing
18
19
3 Effective Solutions for reducing stepsound
Measured Sound reduction
15 18 dB 15 18 dB
28 31 dB Not sealed with
mortar Not sealed with mortar
Sealed with mortar
19
20
20
21
www.invisibleconnections.no
21
22
Do not make a rigid seal in joint afterwards !!
22
23

• Thank you for the attention

23