hi to all,
20" pipe A335 P11 Material with design temp 410 C, Design press 6400 Kpa, is running above the beam.

Now..

bottom of the pipe to the top of beam has only 20mm gap, Can any one tell us how to protect the beam from heat which is emitting from pipe? What type of insulation we need to use? we are using glass wool 150mm insulation, but at 20mm gap how do we need to proceed?

Thank you for replying and reading.