Iic Rated Floor Assemblies

Stc rates a partition s or material s ability to block airborne sound such as a television or people having a conversation.

Iic rated floor assemblies.

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. There are a number of factors that determine the impact insulation class or iic of your floor ceiling assembly. 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. Insulation for sound fire rated assemblies.

In base layer and 1 5 8 2. Fire tests may be conducted at any one of several recognized facilities. 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.

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

Stc and iic lab tests. 25 gauge metal studs 24 with 1 type s drywall screws 36 o c. Iic national gypsum quick selector general reference 23 9 1 hr. 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. Dupree office of noise control california department of health services berkeley california 94704 introduction building codes. One hour fire rated partition parallel to one side of min. 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. Iic 50 the least amount of impact sound transmission reduction considered effective. Catalog of stc and iic ratings for wall and floor ceiling assemblies russell b. 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.

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. One hour fire rated partition 3. Some occupants would be dissatisfied with this level of.

Description stc test no.