Roof corrosion - consequences?

[bmassaer]

Hi there. Sorry I pick up this topic again. I read that the well known "roof corrosion" problem is only corrosion, so not a "structural problem". What would happen if it is not fixed?

(I start a claim this week, but the mechanic told me there's a big chance it will be covered)

Thank you! - Bart

 

[Andy]

It is not corrosion per say, it is bubbling of the paint due to a galvanic reaction between the aluminium RBC & steel roof aperture.

If not repaired it may spread & look a mess, possibly the paint may crack & flake off.

 

[WelshGas]

Cosmetic. As above.