This thesis presents a concept for improving a wood roof from an acoustical point of
view. The normative related to noise is going to demand higher levels for airborne
insulation and also for noise impacts so it is necessary to improve the acoustical part of
these constructive elements.
A deep study of acoustics and also of roofs: parts, functions, manufacturing… and
materials to make them has helped to solve the problem. The knowledge of how sound
is produced, propagated and how it can be reduced has given a solution to the problem
(concepts creation and choice).
The result is a prefabricated wood sandwich panel with a rock wool and rubber core
which is enough justified to perform all normative related to noise and sound as well as
other functions like supporting, thermal purposes etc.
All the parts have been explained adequately and also it has been suggested how the
module can be constructed as well as the assembly in the final structure.
Institutionen för innovation, design och produktutveckling , 2007.