I understand there are two main methods of rewiring a domestic property lighting circuits. Ceiling rose and junction box methods. We were wanting to go the junction box method, however, it seems that if the JB's are being located beneath the floor boards on the first floor to provide the required cables for the ground floor and the first floor is going to be carpeted throughout, then we would not be permitted to rewire this floor the JB method. Is this correct? Hope someone can clarify this. Thanks. (If I haven't confused everyone}.