Ceramic Tile Stc Ratings
A f iic and f stc rating.
Ceramic tile stc ratings. 1207 2 air borne sound sound transmission class stc single number rating derived from laboratory measurement of sound transmission loss astm e90. 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. This catalog of sound rated wall and the purpose of the indexing system is. Carpet with an nrc rating of 40 50 is the most efficient absorptive material.
The f iic and f stc is conducted in the field where sound is not as controllable hence the 5 point difference. 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. An iic and stc rating will generally be 5 points higher than. The nrc is usually reported as a percentage.
A higher stc means the material is better at attenuating the everyday noise in rooms with wood and laminate floors. Tiles are graded using a numerical numbering system based on their thickness and quality. A rating of 1 is the highest quality and thickest tile available 3 4 inch thick and you. The quietwalk underlayment provides very high ratings such as iic of 71 and stc 66 as of mid 2018.
The sound transmission class stc is used in the us to rate ceilings doors interior and exterior walls and windows for sound reduction. 1 inch thick cork wall tiles have a rating of 0 7 which means 70 of the noise is absorbed and 30 is reflected. 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. Iic impact insulation class iic is the numeric value defining how well a floor assembly is at reducing the.
The preferred level of performance for stc and iic is 60 57 f iic. Stc sound transmission class. 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. Catalog of stc and iic ratings for wall and floor ceiling assemblies russell b.
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. Dupree office of noise control california department of health services berkeley california 94704 introduction building codes.