Ada Coefficient Of Friction For Flooring

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Ada coefficient of friction for flooring.

Specifiers routinely cite the 0 60 value as a requirement for americans with disabilities act ada compliance which isn t entirely accurate. Fpo katelyn simpson laboratory manager tile council of north america when it comes to coefficient of friction cof a measurement that relates to traction and tile. Listed below are ada compliant requirements for ground and floor surfaces check if your floor or ramp os ada compliant. Acutestsm determines dynamic coefficient of friction dcof with a sophisticated instrument called the bot 3000 a type of tribometer1 specific for flooring applications.

For decades it was widely believed the americans with disabilities act ada required a static coefficient of friction dry or wet as applicable of 0 60 or higher for level floors and 0 80 for ramps. Osha recommends that walking surfaces have a coefficient of friction of 0 5. This guide explains requirements in the ada standards for floor and ground surfaces. Slip resistant flooring is an important element of ensuring a public access floor is compliant with ada regulations.

In fact this was never true and the access board of the u s. Ground and floor surfaces along accessible routes and in accessible rooms and spaces including floors walks ramps stairs and curb ramps shall be stable firm slip resistant and shall comply with 4 5 specifically the ada discusses coefficient of friction requirements in appendix a4 5 1. There are standards that allow for these differences and safety direct america can supply the test data and safety standards to determine whether a particular flooring is appropriate. There is a reliable way to know how slippery floor tile will be under both wet and dry conditions.

A reasonable measure of slip resistance is static coefficient of friction cof. Firmness stability and slip resistance 302 1 carpet 302 2 openings 302 3 changes in level 303 common questions. Currently a floor must have a minimum dynamic coefficient of friction dcof between 0 30 0 42 for standard flat flooring where sloped or ramped surfaces exceeding a 2 slope requires a dcof between 0 30 0 45. Changes in level up to 1 4 in 6 mm may be vertical and without edge treatment.

Cof or coefficient of friction slip ratings published by tile manufacturers. Astm c1028 coefficient of friction coefficient of friction test cof floor slip resistance standards osha osha slip test scof skid test. Definitions laboratory and field measurements and a comprehensive bibliography is recommended as a guide to achieve proper slip resistance. Specifications for floor and ground surfaces address surface characteristics carpeting openings and changes in level.