N.C. Gen. Stat. § 42-12
If a demised house, or other building, is destroyed during the term, or so much damaged that it cannot be made reasonably fit for the purpose for which it was hired, except at an expense exceeding one year's rent of the premises, and the damage or destruction occur without negligence on the part of the lessee or his agents or servants, and there is no agreement in the lease respecting repairs, or providing for such a case, and the use of the house damaged or destroyed was the main inducement to the hiring, the lessee may surrender his estate in the demised premises by a writing to that effect delivered or tendered to the landlord within 10 days from the damage or destruction, and by paying or tendering at the same time all rent in arrear, and a part of the rent growing due at the time of the damage or destruction, proportionate to the time between the last period of payment and the occurrence of the damage or destruction, and the lessee shall be thenceforth discharged from all rent accruing afterwards; but not from any other agreement in the lease. This section shall not apply if a contrary intention appear from the lease.
N.C. Gen. Stat. § 42-12