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Old 12th February 2020, 10:35   #21
Blink
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Rover 75 Saloon

Join Date: Apr 2019
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Quote:
Originally Posted by Olde faithful View Post
Funny how different cars are, my cars 18 years old and no roof sagging yet? i wonder if you use them alot it helps as my Rover 75 is run off the planet with miles and miles per week, or is it stationary barely used cars roof sags that go?? there is the question?

heavy use or no use or is it just pot luck?? but i find that hard to believe at the same factory fitting centre.
Maybe condensation plays a part. In cold weather a lot of water forms on the underside of the metal roof* and some of it ends up on the upper surface of the headlining. If you unclip the front interior lamp cluster and shine a torch in you can sometimes see it.

(* Particularly the three sections between the cross-members).

The only cure I can think of is to cover the underside of the metal roof with self-adhesive foam sheet. The factory fitted two pieces of sound-deadening foam on the rear section and I've noticed that no water ever forms on them. Foam sheet won't work on the cross-members though because of their shape.
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