If the brick edging and mortar is intact, it won't break through...but it could dive under. How deep does the barrier go?

Is that 2.5 " inches high by 2.5 INCHES wide or feet. If your container is only 2.5 inches wide, this does not give your bamboo very much room and it will never reach its full potential and will eventually die ( in 10-15 years, maybe).

If it is only 2.5 " high, and shares the same soil that is around it, it will dive under. Bamboo roots grow 12" deep, and maybe more depending on the type.

Water you boo well and often when it is that hot.

Have fun!