Veneer plaster partitions achieve up to 63 stc in steel framed resilient systems and up to 52 stc in wood framed resilient systems have achieved 1 to 4 hr.
Ceramic tile stc ratings.
The preferred level of performance for stc and iic is 60 57 f iic.
Dupree office of noise control california department of health services berkeley california 94704 introduction building codes.
An iic and stc rating will generally be 5 points higher than.
Sound transmission class stc is an integer rating of how well a building partition attenuates airborne sound in the usa it is widely used to rate interior partitions ceilings and floors doors windows and exterior wall configurations see astm international classification e413 and e90.
All ratings are not equal as with any underlayment sound testing number that a company gives you each subfloor or floor assembly in your home.
A higher stc means the material is better at attenuating the everyday noise in rooms with wood and laminate floors.
Stc sound transmission class stc is simply a numeric value defining how well a building or in this case a floor is at reducing the effect of airborne noise.
The nrc is usually reported as a percentage.
Carpet with an nrc rating of 40 50 is the most efficient absorptive material.
The quietwalk underlayment provides very high ratings such as iic of 71 and stc 66 as of mid 2018.
1 inch thick cork wall tiles have a rating of 0 7 which means 70 of the noise is absorbed and 30 is reflected.
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.
This catalog of sound rated wall and the purpose of the indexing system is.
Tiles are graded using a numerical numbering system based on their thickness and quality.
1207 2 air borne sound sound transmission class stc single number rating derived from laboratory measurement of sound transmission loss astm e90.
Stc sound transmission class.
A f iic and f stc rating.
The sound transmission class stc is used in the us to rate ceilings doors interior and exterior walls and windows for sound reduction.
Describes the sound insulating properties of a floor ceiling assembly in the 100 4000 hz frequency range fbc and ubc requirement for is 50 higher values indicate.
Catalog of stc and iic ratings for wall and floor ceiling assemblies russell b.
The iic and stc is conducted at a controlled laboratory.
Fire resistance ratings for veneer and conventional systems can minimize or eliminate irregularities such as ridging boarding and nail pops associated with standard drywall.