wrote:
I'm getting ready to lay down fiberfrax in the cowling. One side is
smooth...the other has a "pebble" type texture. Which side should
face the engine...ie. which side would deal with fire the best?

either way will work--the pebble side will probably glue down better.

Which ever you do cover the fiberfrax with SS or Alum foil to keep it
from absorbing oil/gas/etc---Aluminum is OK--if you have a fire, at
least there are no absorbed liquids to burn or transmit heat.Jerry