"roof assembly" means all the parts that make up a roof. It includes things like the roof trusses, decking, insulation, and shingles that work together to create a complete roof structure. Full definition
The concept also has a convertible body with removable roof panels and a modular roof assembly. (thetorquereport.com)
The four - link roof assembly, also made of aluminum for a lightweight design, provides smooth even movement. (topspeed.com)
Of course, the whole roof assembly equals more weight, and at 240 pounds heavier than a 911 coupe, the suspension has been tuned to compensate accordingly. (dupontregistry.com)