Marie - already having it in the library will not reset it or update it unfortunately - to have updated it - it needed to be in your studio already and then if you had uninstalled it from your game and redownloaded it from your own studio and THEN back to your game, it would have been updated when EA updated the store and the exchange. When ever they update the store and exchange it updates what ever is in our studios - but unfortunately for us if we do not upload ourstuff to our studios before an update, then the only way it gets updated is us physically fixing what ever has broken due to an update. So you just uninstall the version you have in your game and then redownload from your studio the same lots or sim or what ever after EA has updated, and your stuff will have all been updated. It is why they tell us when there is a store update, we need to remove all our store content in game, then go to our purchase history and redownload all our content to have it all updated to the newest store update. It is the same with our other ingame stuff - in order for it to all be updated - stuff that was made before a game or store update, we need to uninstall the version in our games, redownload and reinstall the updated version that is in our studios.
So unfortunately if it was not in your studio, the only way you can fix it is redo the roof your self. Adding it to your studio at this point will only save it with the problems it has.
Wish I had a better solution, but unfortunately that is the only way I have found that cuts short us having to manually upgrade all our own made things. It is also why any thing I make and plan to keep I always upload it to my studio - not matter how crappy it might be - it is why you see a few rather cheaply crappy made places in my studio, just so I always have updated versions of the houses I made my sims actually live in - in different worlds. That way if coding fouls up a sim or lot in game, when they update the exchange, they update my crappy houses and I can just move my sims to the clipboard, bulldoze his ingame house, and replace it with it's EA updated version from my studio.
But I am definitely not perfect, as even though I know this - right this minute I have maybe 4-5 houses and at least 3 sims I have not added to my studio, and definitely need to before another update or EP. And I know better. hehehe
Sorry I couldn't be of more help for your house.
