What doesn't buildings insurance cover?
It won't protect your possessions, or anything inside the flat. For that you need home contents insurance.
Is my shed covered by buildings insurance?
Buildings insurance covers any permanent fixtures, which can include your shed, as well as your garage and greenhouse. It'll also cover drains, cables and pipes that are your legal responsibility, which is useful when you consider that the cost of fixing a burst pipe can reach £7,500. It will also cover interior fittings like baths, kitchen units and loos.