This Insurance extends to include the costs of destruction and subsequent replacement of undamaged property or undamaged portions of property and for this purpose “undamaged” shall mean not damaged physically and directly by an event or peril not otherwise excluded by this Policy if such destruction is solely necessary in order to carry out repairs or reinstatement of the property insured by this Policy and for which the Insurer (s) has admitted liability. Provided that this memorandum shall not include