My roof is white.
I doubt it's suffering from expansion of the roof's metalwork, as there is significantly less of it when there's a sunroof.
Also, I am guessing that the strengthening and framework invovled would rule this out.
I'm guessing that what is actually happening is that there is some sort of thermal expansion going on either between the runners and the "rollers"/bearings, or the metal lateral braces attached to the moving glass section, and the runners, or possibly just some sort of expansion of the frame on which the sunroof is mounted.
I doubt it's expansion of the glass area, but it does seem to point to something like this. Why else would it only affect the car in hot conditions....
Oh, the temp. was the temp. reading on the in-car guauge, not the temperature in the sunlight... which I guess was a lot higher. |