325. Meliorating waste.

Although changing the nature of the demised premises is technically waste, this is not so if the change has been expressly sanctioned by the landlord1. It seems that an act does not constitute waste unless it is in fact injurious to the reversion, either by diminishing the value of the estate, or by increasing the burden upon it, or by impairing the evidence of title2. At any rate, in the case of acts which may be technically waste but in fact improve the reversion ('meliorating waste'), the court will not interfere to restrain them by injunction