Today, all automotive manufacturers look for ways to improve areas of customer satisfaction. The use of a trim shop applied adhesive, along with slight to major design changes in the traditional roof/headliner system, will increase many areas of customer satisfaction. Customers may perceive improvements in acoustics; the manufacturer will realize parts elimination, mass reduction, improved structure and reliability, design flexibility and cost savings. In the following article, the traditional roof/headliner system with roof bows will be reviewed. A comparison will then be made between this system and two alternatives: a bonded structural headliner system with trim reinforcement material (TRM), and one without the trim reinforcement material.