I am short on time and need help going in the right direction.
The AHJ wants the sound levels in each room without a horn/strobe. I indicate horn/strobes in the corridors and common spaces.
I know the output for each horn/strobe: 98dBA
The distance from each room to the horn/strobe varies, but I plan on basing the calculation to the center of the room. For this example, we can use 12feet.
The walls for each room is double 5/8" GWB with STC of 40.
The sound levels needs to be 15dB above the average ambient sound of 54dBA.
I have found a lot of calculations for sound. But what am I missing?