25 50 Fire Rated

Both may be used on a variety of curved or flat mechanical surfaces such as large pipe ducts tanks chillers etc.

25 50 fire rated. Da form 1222 da form 200 da form 209 da form 5 da label 113 da label 115 of form 41 of form 65 b. 10 class a smoke developed. The 25 50 fire class of all speedline smoke safe products provides greater universal building code acceptance provides a natural barrier to moisture bacteria and mold colored fitting covers and jacketing are not recommended for outdoor use. For applications requiring fire and smoke ratings of 25 50 ap armaflex fs flame spread meets astm e 84 at 25 50 for 1 1 2 and 2 thicknesses.

Class a is the best rating a material can receive and indicates very high resistance to spreading flame. The 25 50 designation is used to indicate that products comply with building code requirements and are suitable for exposed applications. Ul 723 is underwriters laboratories designation for the e84 test procedure. Pipe insulation is considered fire rated material because according to the imc and umc building codes they are not exposed within the plenum.

Ats fire rated acoustic panels have the following ratings. Building insulation is normally not exposed once construction is complete. Figure 1 shows wall insulation that has yet to be covered with drywall. Pestan recommends the following solutions for applications to meet the required fsi of 25 and sdi of 50.

Astm e84 and ul 723 are used interchangeably. Prescribed forms prescribing directive. With a flamespread 25 or less and smoke developed under 50 ats fire rated acoustic panels also qualify for fhc fire hazard. Code officials typically accept data by either procedure.

The pipe should be encased in insulation that meets the 25 50 flame spread and smoke development. Astm e84 25 50 flame smoke rating. A fire resistance rating typically means the duration for which a passive fire protection system can withstand a standard fire resistance test this can be quantified simply as a measure of time or it may entail a host of other criteria involving other evidence of functionality or fitness for purpose. Insulated pipes often pass through fire rated assemblies and therefore fire stop systems for the insulted pipes must be employed to meet building code requirements.

Building codes and fire safety standards require fire stop systems to be tested to one of these methods and achieve a specified hourly rating. Remember google is your friend.