florida building code 913 masonry stress increase0
 

florida building code (1/3 masonry stress increase)
all,
can anyone tell me why the florida building code allows the 1/3 stress increase for masonry, section 1605.3.1.1, and the ibc does not include this exception?
"exception: increases in allowable stress shall be permitted in accordance with aci 530/asce 5/tms 402 provided the load reduction of section 1605.3.1.1 item 1 shall not be applied".
what makes them any different from the rest of us?
that's a good question str04. since 2000 ibc the 1/3 increase has been taken out unless the combined effect of two or more loads are added to the dead load, with exception to chapter 23. is this because masonry is so prevalent in florida and they would take a hit by going to this provision?