Workmen are allowed in and about any of the described premises for the purpose of making new erections or alteration, repair, decoration, plant installation, general maintenance and the like without prejudice to the terms and conditions of the Policy.
If the Underwriters allege that by reason of this exclusion, any loss, damage, cost or expense is not covered by this insurance the burden of proving the contrary shall be upon the Assured.
In the event any portion of this clause is found to be invalid or unenforceable, the remainder shall remain in full force and effect.
