In consideration of the payment of a additional premium which is included in the premium hereon it is hereby agreed and declared that subject to the conditions of the Policy loss as insured by this policy resulting from interruption of or interference with business in consequence of damage (as within defined) to property in the vicinity of the premises which shall prevent or hinder the use thereof or access thereto, whether the premises or property of the Insured therein shall be damaged or not, shall be deemed to be loss resulting from damage to property used by the Insured at the premises.
Provided always that all the provisions and conditions of this policy shall apply to the insurance by this extension except in so far as they may be hereby expressly varied.
