When it comes to joining, the FlexFix Film Tape is a good choice.

Many materials are stressed by building codes and regulations.The Steiner Tunnel Test is a mandatory test for many commercial building materials.

It is critically important to understand the parameters and tolerances of the standards and mandatory tests.

The testing and evaluation of the ignition, burning, or combustion characteristics of certain materials is what the fire and flammability standards involve.Most of the standards test the flammability of interior and exterior building parts, as well as common household and commercial furniture.These fire and flammability standards help to establish building codes, insurance requirements, and other fire regulations that govern the use of building materials, as well as in defining the appropriate criteria for the storage, handling and transport of highly flammable substances.There are standards for fire andflammability.

The test values are obtained from burning test material where the values represent a comparison with red oak expressed as one hundred.

To be identified as an official Class 1 duct, the materials must have a flame spread rating of no greater than 25 with no evidence of continued progressive combustion, and a smoke developed rating no more than 50.

A flame spread of 20 will allow flame propagation some distance from the flame source.Vent duct rated at the weaker end of the Class 1 spectrum can burn.

For a moment, consider this.The installation of specialized and expensive sprinkler systems is required inside the ductwork in certain applications.

In addition to costly internal sprinklers, FRP duct also requires flame retardant vinyl ester resin coating to reach Class 1 status.When exposed to flame, brominated vinyl ester creates high levels of smoke and carbon dioxide.

Large volumes of thick black smoke are generated when a duct fire is measured by the tests.

The additional cost for smoke damage can be five times greater than the cost of fire damage alone.

One must pause to consider whether they can afford the risks and costs of this level of “Class 1 duct” given the added fire-suppression requirements and high smoke generation levels.

Class 1 duct is what is required for installations using the PSP® fume exhaust duct.It has the same rating as reinforced cement board with a flame spread of zero.The reduction of annual fire and business interruption insurance costs is a result of this.

The smoke generation index of less than 20 is certified in the tests.The risks and costs associated with smoke damage are dramatically reduced by this.

The Uniform Building Code established by the federal, state and local authorities is accepted by all of them.*

Our recommendation is that 10 mils is more than adequate for any service conditions ever encountered.

PSP® is a true Class 1 duct that will greatly contribute to the overall safety of your facility and the men and women responsible for daily operations.In the event of a fire, the prevention of fugitive odor, vapor contamination, fluid leakage and catastrophic loss of life and property can be achieved with the use of PSP®.

Please feel free to download our general information guide if you would like more information.