Floor Rating 55 Definition

Available in aluminum carbon steel and stainless steel.

Floor rating 55 definition. If there s wall board covered ceiling suspended from the underside of that floor the dead load increases to about 10 pounds per square foot. 55 20132016 3 3 2 access box. The iic rating is the determined by using a standard tapping machine with five steel faced hammers to strike a test floor material generating sounds between 125 hz 4000 hz. A typical wood frame floor covered with carpet or vinyl flooring has a dead load of about 8 pounds per square foot.

The preferred level of performance for stc and iic is 60 57 f iic. A f iic and f stc rating. The 55 inch category remains the most popular choice for tvs even though larger options are slowly but steadily gaining market share. An approved secure box accessible by the ahj s master key or control containing entrance keys or other devices to gain access to a structure or area.

Protection from dirt dust oil and other non corrosive material. An iic and stc rating will generally be 5 points higher than. Protection from water up to water projected by a nozzle against enclosure from any direction. 5000 2015 3 3 4 aerosol product.

This standard is used to define the levels of sealing effectiveness of electrical enclosures against intrusion from foreign bodies such as tools dirt and moisture. Ip 55 enclosure characteristics. The international code council recommends that an acceptable level of performance for both stc and iic is 55 52 f iic. A uniform load rating on a beam can easily be translated into what an equivalent maximum point load can be.

High rise condominium buildings have 5 or more units and at least 3 floors excluding enclosure even if it is the lowest floor for rating purposes. The iic and stc is conducted at a controlled laboratory. The impact creates vibrations that travel through the flooring and produce sounds on the other side. For example a floor joist at 16 spacing s that can carry 53 pounds per linear foot would translate into a 318 pound single point load at its center.

New technologies are maturing and are becoming available in more mainstream models. 2019 was a good year for tvs as the models we have tested were better than their 2018 counterparts. Complete protection from contact with enclosed equipment. 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.

An enclosure below an elevated building even if it is the lowest floor for rating purposes cannot be counted as a floor to avoid classifying the building as low rise.