Check out this picture of a barrel vaulted ceiling prior to drywall. The roof construction utilizes engineered wood I-beams. The rest of the room is constructed with conventional sticks.
Here are a few questions for your company drill:
Do we have any barrel vaulted ceilings in our jurisdiction?
What are the hazards to firefighters when operating at structures with this type of construction?
How can we identify light-weight engineered construction? Pre-plans? Jurisdiction knowledge? Size-up?
How do our tactics change?
Thanks to Lt Deptula (Vermilion Twp FD) for the picture.