A retail shop lease is taken to provide that the landlord must not begin to carry out an alteration or refurbishment of the building or retail shopping centre of which the retail shop forms part that is likely to adversely affect the business of the tenant, unless:
(a) the landlord has notified the tenant in writing of the proposed alteration or refurbishment at least 2 months before it is commenced; or
(b) the alteration or refurbishment is necessary because of an emergency and the landlord has given the tenant the maximum period of notice that is reasonably practicable in the circumstances.