Conservatory roof leak

[GusGF]

Yes it's one of those again, I'm sure this forum get lots.

We've got a leak which I believe is coming from the glass joins in the roof i.e. one of the rafters. Water is leaking from the soffit which I believe is finding it's way from one or more of the rafters, I imagine one or more of the rafters is channeling the rainwater down to the soffit. I suspect this as several years ago there was a small leak from one of the rafters. Now I don't want to start tearing down the soffit and you can see in the first photo the water trace where the soffit ends. There is a join as the soffit is made up of 2 panels and water has leaked along this join in several places. The installer tried to say this leak was coming from the roof of the main house (bungalow) which the conservatory is built off of, suggesting a broken tile/loose ridge cap.
In an effort to see what's actually going on I want to remove the plastic from the underside of the rafters to try and identify any leaks. I've tentively tried to remove them from the underside of the rafter but they don't budge. So what I want to know is can and should I be able to remove these and how do I do it non destructively?

 

[Harry Bloomfield]

I've tentively tried to remove them from the underside of the rafter but they don't budge. So what I want to know is can and should I be able to remove these and how do I do it non destructively?

They do look as if they just clip in place, but I'm no expert.

 

[GusGF]

Well that's what I was thinking but before I go and start to try prying them off I'd check

 

[crank39]

That's an ultraframe make of roof for ref. The leak is almost certainly coming from the joint between the aluminium box gutter adaptor, this is the adaptor/joint between the wide aluminium box gutter and the narrow plastic conservatory gutter, they always leak. The sealing needs to be done from outside preferably a dry day and you need to key the surfaces and paint with something like cromopol.

To remove the internal cloaking first unclip the fascia, the bit with the stripes in, start in the middle and grab the top and bottom edges and pull, this will pull the end away from the corner in question, this should then release the under cloaking from the underside of the box gutter, there should be some self adhesive foam insulation stuck to the gutter but on the cloaking you should see water marks and this will give you an indication of where the water is coming from, it could be coming in from the other end and running along the cloaking and dripping out at the end you've shown, the evidence will be on that cloaking

 

[foxhole]

Is box gutter clear of leaf litter , they cause leaks pretty quickly if blocked .

 

[GusGF]

That's an ultraframe make of roof for ref. The leak is almost certainly coming from the joint between the aluminium box gutter adaptor, this is the adaptor/joint between the wide aluminium box gutter and the narrow plastic conservatory gutter, they always leak. The sealing needs to be done from outside preferably a dry day and you need to key the surfaces and paint with something like cromopol.

To remove the internal cloaking first unclip the fascia, the bit with the stripes in, start in the middle and grab the top and bottom edges and pull, this will pull the end away from the corner in question, this should then release the under cloaking from the underside of the box gutter, there should be some self adhesive foam insulation stuck to the gutter but on the cloaking you should see water marks and this will give you an indication of where the water is coming from, it could be coming in from the other end and running along the cloaking and dripping out at the end you've shown, the evidence will be on that cloaking

View attachment 358837

Amazing info thank you so much and the image helps a ton. I'm going tackle this in the next few weeks when I've got some time off. TBH this has been a problem for several years now and I've been dreading tackling it but I can't put it off any longer. I will let you know how I get on and thanks again.

 

[GusGF]

Is box gutter clear of leaf litter , they cause leaks pretty quickly if blocked .

Yes I've checked this as this was something I thought was causing the problem.