Job Note: Sound Proofing

Beverly Hills, CA - Apartments

Ideally, a house would be built inside a house while maintaining complete disconnection between the two building envelopes. The entire surface area of the outer shell would be covered with E:500. This is a typical scenario in high end studios. Obviously, this option is too expensive for normal residential or office construction.

For residential purposes, we don’t have to go quite so far in order to still obtain excellent results. Our recommendation is to fill all available cavities by about two thirds up to 5" (12 cm). A full fill is not recommended as it would aid in sound bridging. If 5" is not feasible due to cost reasons, even 1.5" to 2" will produce respectable improvements. It is most important that the entire reachable surface be covered.

In the picture to the left, a sound barrier is created between two floors in an apartment building in Beverly Hills, California.

The right picture shows about two-thirds filled. In this case, the customer reported drastic improvement but not “complete silence". This would be expected since the rafters still provide “sound bridging".

E:zero spray foam has also been successfully applied in many sound projects to dampen the noise from water rushing through pipes. In the mockup, the pipe is clearly visible in the top and bottom sections, which feature fiberglass and cellulose. The pipe travels through the entire length of the wall but is entirely covered in the middle section, which features the E:zero spray foam insulation. The second photo shows an actual application of sound abatement of pipes carrying rain water. These pipes run through the middle of a large residential building.