Jones is selling a house to Smith  The contract between the two specifies that for up to a year after ownership is transferred, Jones will be responsible for repairing any major structural defects,  defined as defects in the roof or roof-supporting components of the house, that might be found  Jones is not responsible for any other repairs
The house has a truss roof, which means that the only walls that support the roof are the exterior walls
Jones did not know of any defects in the roof or roof-supporting components of the house at the time the contract was written