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Hi, completely new to this and looking to learn from the wisdom of others.
We recently moved into our house and have noticed this crack that has developed in the plasterboard ceiling of our patio.
I'm wondering if this looks like its from water damage (or potentially something else?) And how I might go about fixing it?
hi @SPMac Did you intentially make a crack pun about your cracked roof 
If so great you havnt lost your sense of humour needed at this time.
Another way I lift sunken roofs is I make a T shaped prop as discussed approx 1.5 padded span top and I cut the prop piece to the floor long enough to get a car jack underneath, (2nd person helps here) This makes lifting much easier. But dont over lift as car jack can crush ceiling gyprock going up to far.
