Timber iQ February - March 2017 // Issue: 30 | Page 63

CONTRIBUTORS
This dry-layered system offers the best chances for intervention in impact noise soundproofing.
Specifically, side transmission of impact noise through different structural paths is crucial to determinate the real behaviour of the building from an acoustical point of view. The vibration reduction index( Ki, j) can be determined by calculation according to EN 12354-1 or by experimental tests on real configuration of panels and connection. An appropriate acoustic design must refer to values calculable in advance and not on tests executed in retrospect on sight on isolated and unique cases.
The collaboration between Rotho Blaas and the University of Bologna represents a turning point in this field: an abacus of standard connection is provided as a powerful tool to assist designers in predicting the desired acoustic insulation.
Timber is one of the lightest materials and therefore one of the most sensitive to acoustic vibration at low frequency.
Attention to sealing, correct taping and the use of foam and expanding tapes are the ideal solution for airborne soundproofing in wooden houses.
Airtightness of timber buildings( airtightness) is strictly connected with soundproofing: airborne noise is the propagation of sound energy in the air through sound waves. For this reason, cure for details, attention to sealing, correct taping and use of foam and expanding tapes are the ideal solution for airborne soundproofing in wooden houses.
A compendium of soundproofing solution for a correct acoustic design of wooden structures is now available on Rothoblaas website.
Greenhouse Manufacture & Equipment Supply
Solar Drying Kilns available in 4m, 8m and 10m Width – 6 to 30m in Length. Size dependant on Cubic Timber needed to be dried. Manual and Automatic Controls available. Solar Kiln speciality design around customer requirement – Please contact us for a quote.
083 626 4612 021 903 0620 sales @ econoheatpty. co. za
Multispans • Tunnels • Solar Kilns • Service and Installation www. econoheatpty. co. za
// FEB / MARCH 2017 61