Concrete Floor Sound Attenuation

Sound control requirements are becoming much more stringent in canada.

Concrete floor sound attenuation.

Sound attenuating floor systems. The large mass weight provides for a great deal of sound isolation from vibrations entering or leaving the room. Protecting a concrete slab a concrete slab is generally an asset for airborne sound isolation. Dl 52 db.

With the national building code nbc expected to change in the near future builders are taking a proactive approach in increasing their sound transmission class stc and impact insulation class iic ratings in multi family hotels and retirement residences. Example a concrete floor and sound attenuation. M 2300 kg m 3 0 2 m 460 kg m 2. The mass m of a concrete floor with density 2300 kg m 3 and thickness 0 2 m can be calculated as.

The more the concrete weighs or the denser the concrete the more sound insulation the greater sound transmission loss rating. Determining sound transmission class stc for concrete masonry. Vinyl cork and rubber have a fairly high nrc rating with hardwood bamboo tile and stone at the bottom of the scale for sound absorption. Simply put walking down a painted dense high psf weight concrete hallway floor ceiling walls in capped boots will be very noisy but the person in the next room may not hear you very well if there are no.

Sound transmission class stc provides an estimate of the acoustic performance of a wall in certain common airborne sound insulation applications the stc of a wall is determined by comparing sound transmission loss stl values at various frequencies to a standard contour stl is the decrease or attenuation in sound energy in db. Carpet with an nrc rating of 40 50 is the most efficient absorptive material.