Iic Rated Floor Assemblies

Common guidelines to use when selecting the proper iic rating for your space.

Iic rated floor assemblies.

Description stc test no. Stc rates a partition s or material s ability to block airborne sound such as a television or people having a conversation. Impact sound complaints are common on floor ceiling assemblies that meet the bare minimum requirement of 50 decibels iic. Fire resistance ratings represent the results of tests on assemblies made up of specific materials in a specific configuration.

Quick selector for fire and sound rated systems gypsum wallboard floor ceilings wood framing floor truss cad file name golds dwg or golds dxf no. One hour fire rated partition parallel to one side of min. This catalog of sound rated wall and the purpose of the indexing system is. The lowest iic rated floors ceiling assemblies come in at around 25 and the highest rated systems can come in at 85 and up.

Catalog of stc and iic ratings for wall and floor ceiling assemblies russell b. Measures a floor ceiling assembly s resistance to transmission of structure borne or impact noise such as footfall or a chair dragging on the floor. Iic 50 the least amount of impact sound transmission reduction considered effective. There are a number of factors that determine the impact insulation class or iic of your floor ceiling assembly.

Iic impact isolation class astm e492 e989 and stc sound transmission class astm e336 e413 are both tests for sound traveling through the total floor ceiling assembly from an upper living area to a lower living area. Rating of partitions floor ceiling assemblies roof ceiling assemblies beams and columns. Wall floor assembly guide construction designs for acoustical control sound can transmit between electrical outlets through wiring separate wiring of each occupancy can minimize this problem. Fire tests may be conducted at any one of several recognized facilities.

25 gauge metal studs 24 with 1 type s drywall screws 36 o c. 7 usg acoustical assemblies components acoustically rated systems have been comprehensively tested for sound. Fm fc 214 two layers 1 2 12 7 mm fire shield c wallboard est. Some occupants would be dissatisfied with this level of.

Vibrating equipment should be. Insulation for sound fire rated assemblies. Iic national gypsum quick selector general reference 23 9 1 hr. Stc and iic lab tests.

Dupree office of noise control california department of health services berkeley california 94704 introduction building codes. These include the finish floor the substrate and the ceiling system below in addition to your choice of sound mat or soundproofing underlayment. Two hour fire rated partition. Impact isolation measurement of the ability of a floor ceiling assembly to isolate sound from footfall and other impact sources class iic reducing the intrusion of noise into rooms directly below.

Stc rated wall assemblies.