Except as provided hereinbelow, no antenna shall be constructed, erected or installed in the Borough unless and until a building permit is issued by the Building Inspector, following the procedures set forth herein. In all zones, a building permit shall not be required for the construction, erection or alteration of an antenna one meter or less in length or width or one meter or less in diameter. In the B-1 and B-2 Districts, a building permit shall not be required for the construction, erection or alteration of an antenna two meters or less in length or width or two meters or less in diameter.