but it's not the fault of mesh net provider also.
contractor should have order & use fire retardant net, but they cheap out.

bamboo also plays a big role.
standard mesh net burns & drip, but the material actually burns out very fast.
kinda like burning a plastic straw, it carries the fire, drips, but burn out very quickly.
bamboo van burn for long time, keeps burning even when it becomes bamboo charcoal.
the hollow nature of bamboo also allows it to suck fresh oxygen from opening to further fuel the fire.