Yes, you can put wires under attic insulation as long as you take the proper precautions. First, you should make sure that the insulation is not blocking the wires or preventing them from making proper contact with the roof. If there is too much insulation in the way, it can cause a fire hazard. Second, you should make sure that the wires are properly insulated and protected from moisture. If they are not properly insulated, they could corrode and short out. Finally, you should always check with an electrician to make sure that it is safe to put wires under attic insulation. Wires installed incorrectly can create a fire hazard and could lead to serious injury or death.