Beware of no repair.
The Owner is responsible for insuring the contents of their home. However, the Owner has clearly notified the OC of the problem with the common property guttering and facia boards. Now that Notice has been provided it is the duty of the OC to make these repairs in a reasonable and timely manner.
The OC has decided not to repair. It is not unreasonable for the Owner to make a claim for any loss, or damage to their contents from the OC rather than from their own insurance company. In fact their insurance company may force them to do so.
In addition, the OC’s insurance company may deny liability if the OC is seen to have knowingly decided not to fulfill their duty to repair common property in a timely manner.
The OC’s decision not to repair may end up being the wrong decision and may cost more money than they first anticipated.