When testing SFRM thickness on a beam, how many thickness measurements are taken at each end of a specified length?

To determine the thickness of Spray-Applied Fire-Resistive Material (SFRM) on a beam, it is important to follow standardized testing protocols to ensure accuracy and reliability of the measurements. According to industry standards, when assessing the thickness of SFRM, specific measurement guidelines dictate how many readings are needed and at what intervals.

For the correct answer, nine thickness measurements should be taken at each end of a specified length. This number provides a comprehensive assessment of the SFRM thickness, capturing potential variations that might exist due to application inconsistencies or environmental factors. Measuring at multiple points allows for a more accurate average thickness calculation, which is critical in verifying that the fireproofing meets the required standards for structural fire resistance.

The specified length typically refers to a section of the beam where the SFRM is applied, and measuring at both ends enhances the reliability of the results. By taking multiple measurements, inspectors can adequately ensure that the fireproofing material is properly applied and meets the necessary thickness requirements for code compliance and safety standards.

This thorough approach to measuring SFRM thickness is important in the building industry, as it directly impacts the safety and integrity of the structural elements being protected against fire hazards.