An Uplifting Experience Truss uplift has nothing to do with plastic surgery or under- garments. It is a phenomenon common in homes built with roof trusses as opposed to rafters. If a house suffers from truss uplift, the top floor ceilings literally lift off the interior walls in the winter. They drop back down in the summer. Needless to say, this is a tad disconcerting to the homeowner. At first glance, one might assume that the floors have settled. Actually the ceiling has g