Iic Rated Floor Assemblies

Iic national gypsum quick selector general reference 23 9 1 hr.

Iic rated floor assemblies.

One hour fire rated partition parallel to one side of min. 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. This catalog of sound rated wall and the purpose of the indexing system is. Fm fc 214 two layers 1 2 12 7 mm fire shield c wallboard est.

Stc and iic lab tests. 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. One hour fire rated partition 3. Impact sound complaints are common on floor ceiling assemblies that meet the bare minimum requirement of 50 decibels iic.

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. Some occupants would be dissatisfied with this level of. Stc rates a partition s or material s ability to block airborne sound such as a television or people having a conversation. 25 gauge metal studs 24 with 1 type s drywall screws 36 o c.

Fire tests may be conducted at any one of several recognized facilities. Dupree office of noise control california department of health services berkeley california 94704 introduction building codes. Iic 50 the least amount of impact sound transmission reduction considered effective. Stc rated wall assemblies.

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. These include the finish floor the substrate and the ceiling system below in addition to your choice of sound mat or soundproofing underlayment. Fire rated floor ceiling assemblies using metal framing stc 50 iic 50 fire rating as shown 1. Vibrating equipment should be.

Two hour fire rated partition. Description stc test no. Fire resistance ratings represent the results of tests on assemblies made up of specific materials in a specific configuration. Rating of partitions floor ceiling assemblies roof ceiling assemblies beams and columns.

7 usg acoustical assemblies components acoustically rated systems have been comprehensively tested for sound. 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. 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.

Insulation for sound fire rated assemblies.