There's little more annoying than travelling a long distance to do research and then finding the facility closed. Sometimes it can't be helped when a power cut, fire or strike closes the facility. Planned closures are almost invariably advertized well in advance, and that's happening at Library and Archives Canada in Ottawa. Renovations there will lead to the establishment of a new physical Canadian Genealogy Centre, a welcome addition. It looks like there will be disruption of their services until at least mid-September. If you're considering a visit soon see the details here.