In SFRM specifications, what must be the condition of the measurements for the thickness of tube steel?

The requirement that none of the measurements can be less than the specified thickness is essential in ensuring the effectiveness of Spray-Applied Fireproofing Material (SFRM). Fireproofing thickness plays a critical role in maintaining the structural integrity of steel components during a fire event. If any measurement falls below the specified thickness, it could compromise the fire-resistive properties of the SFRM and lead to a failure in protecting the steel from the effects of heat.

Building codes and industry standards emphasize that fireproofing materials must meet specific thickness requirements to function correctly. Adequate thickness of the fireproofing material ensures that it provides the necessary thermal barrier to slow down heat transfer to the steel, thus delaying potential failure of structural members.

In contrast, if measurements were allowed to be less than specified, it could lead to areas of vulnerability that could undermine the fire safety of a building. Hence, the stipulation that all measurements must meet or exceed the specified thickness is not just a guideline; it is a mandatory requirement in order to maintain fire safety standards.