Hot Ceiling–Maybe Too Hot

Noticed a few nail pops in the ceiling above my propane forge.  Woodworker from down the creek said I should put in a heat shield or vent before I burn through the ceiling.  Probably a good idea and have ceased work until I can fabricate a 40” x 48” metal sheet and hang it about 2 feet below the 9 foot ceiling. That should take the heat and deflect it harmlessly into the shop and not onto the ceiling.  With a fan I hope to disperse the hot air from the forge in the summer.  In the winter it feels good.  All for now.  Be safe.