How to rough in smoke detectors in new construction building 

Here we learn to install the electrical wire to the smoke detectors in the new Zittle Garage building.
Use 14/2 to the first smoke detector and then 14/3 to all the rest.
I am not a professional electrician and everything here will be inspected by the county. Please use this video for informational purposes only. #HowTo #smokedetector #builder