484. Subsequent events making time unreasonable.

484.     Subsequent events making time unreasonable.

A tenant1 who has required arbitration2 and who has been found liable to comply with a notice to do work3 or with any part of it is not precluded from subsequently requiring arbitration4 on the ground that in consequence of anything happening before the expiration of the time for doing the work, as extended by the arbitrator5, it would have been unreasonable to require the tenant to do the work within that time6.