immortal1 (linn)
+1y
No factory bows. More or less, it is a piece of 1/8" pressboard cut to fit. It is actually oversized enough side to side and front to back so that there is a bow ot the wood. Where the wood meets metal, there is a few sheet metal screws keeping the edges from dropping.
Keep in mind that with all the glass, the head liner weighs over 10 pounds and has been up there for over 6 years. The method does work.