leaking velux window

[freddiemercurystwin]

We have 5 Velux's fitted to a single storey extension that was built back in 2014, so 9 years old now. After a lot of rain this week, persistent, but not particularly heavy, we have noticed 3 of the Velux windows have developed a leak exactly where others have also had an issue. I know the roof pitch is very low so maybe this is contributing to the issue, but it would appear to be a common issue with Velux windows as they age.

So the roof pitch is beneath the windows design limits then?

 

[catlad]

I have taken out / replaced 30yr old velux skylights that are still waterproof (when fitted correctly)
and at 25 degrees and above! if you put them in at the minimum 15 degrees I would say you can get issues after 10 yrs or less if fitted by the builder who built your extension!
Velux have recently brought out a new 10 degree low pitch model for all the builders who don't bother reading the instructions.

 

[dormermike]

Just discovered all my ggl104 are leaking in the corners. They are 30 years old. Glass isn't blown. Would it be best just to have them replaced at this stage and what cost approx per window, £500 ? I have 6 that need doing