It is agreed that in Section 1, Material Damage the following is added to Exclusions to Section 1:
Insurers will not indemnify the Insured in respect of any loss or damage arising directly or indirectly from the overtopping of a cofferdam caused by a flood with a return period of less than the period stated below.
The burden will be on the Insured to demonstrate that this exclusion shall not apply.
Return period: 25 years.