Damage or Destruction If the demised premises or any part thereof shall be damaged or destroyed by fire or other casualty, Landlord shall promptly repair all such damage and restore the demised premises without expense to Tenant, subject to delays due to adjustment of insurance claims, strikes and other causes beyond Landlord's Control. If such damage or destruction shall render the premises untenable in whole or in part, the rent shall be abated in proportion to the loss of usage of the demised premises by Tenant until the damage shall be repaired and the premises restored. If the damage or destruction shall be so extensive as to require the expenditure of fifty (50%) percent or more of the replacement cost of the building or buildings on the demised premises, Landlord may elect to terminate this Lease by written notice to the other given within thirty (30) days after the occurrence of such damage or destruction if Landlord shall not commence reconstruction of the premises within sixty (60) days after the loss, Tenant may give Landlord notice of its intent to terminate the Lease, and if Landlord shall not commence such reconstruction within fifteen (15) days after receipt of Tenant's notice, Tenant may terminate this Lease. Landlord and Tenant hereby release each other from responsibility for loss or damage occurring on or to the leased premises or the premises of which they are a part or to the contents of either thereof, caused fire or other hazards actually covered by the fire and extended coverage insurance policy Tenant is required to provide under Section 5 above, and each waives all rights or recovery against the other for such loss or damage. Willful misconduct lawfully attributable to either party, whether in whole or in part a contributing cause of the casualty giving rise to the loss or damage, shall not be excused under the foregoing release and waiver.